0000866829-19-000034 | 10-Q | XBRL Viewer | Helix Energy Solutions Group INC

Print Document View Excel Document

Document And Entity Information - shares	9 Months Ended
Document And Entity Information - shares	Sep. 30, 2019	Oct. 18, 2019
Document And Entity Information [Abstract]
Entity Registrant Name	HELIX ENERGY SOLUTIONS GROUP, INC.
Entity Central Index Key	0000866829
Entity File Number	001-32936
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Period End Date	Sep. 30, 2019
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	MN
Entity Tax Identification Number	95-3409686
Entity Address, Address Line One	3505 West Sam Houston Parkway North
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77043
City Area Code	281
Local Phone Number	618–0400
Title of 12(b) Security	Common Stock
Trading Symbol	HLX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		148,809,467

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 286,340	$ 279,459
Accounts receivable:
Trade, net of allowance for uncollectible accounts of $0	91,707	67,932
Unbilled and other	72,548	51,943
Other current assets	61,751	51,594
Total current assets	512,346	450,928
Property and equipment	2,819,932	2,785,778
Less accumulated depreciation	(1,022,138)	(959,033)
Property and equipment, net	1,797,794	1,826,745
Operating lease right-of-use assets	213,048	0
Other assets, net	90,323	70,057
Total assets	2,613,511	2,347,730
Current liabilities:
Accounts payable	79,122	54,813
Accrued liabilities	71,982	85,594
Income tax payable	0	3,829
Current maturities of long-term debt	108,468	47,252
Current operating lease liabilities	52,840	0
Total current liabilities	312,412	191,488
Long-term debt	304,932	393,063
Operating lease liabilities	164,761	0
Deferred tax liabilities	110,118	105,862
Other non-current liabilities	39,008	39,538
Total liabilities	931,231	729,951
Redeemable noncontrolling interests	3,257	0
Shareholders’ equity:
Common stock, no par, 240,000 shares authorized, 148,802 and 148,203 shares issued, respectively	1,316,805	1,308,709
Retained earnings	437,418	383,034
Accumulated other comprehensive loss	(75,200)	(73,964)
Total shareholders’ equity	1,679,023	1,617,779
Total liabilities, redeemable noncontrolling interests and shareholders’ equity	$ 2,613,511	$ 2,347,730

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Allowance for uncollectible accounts	$ 0	$ 0
Shareholders’ equity:
Common stock, shares authorized	240,000,000	240,000,000
Common stock, shares issued	148,802,000	148,203,000

Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net revenues	$ 212,609	$ 212,575	$ 581,160	$ 581,462
Cost of sales	157,535	160,582	469,898	473,589
Gross profit	55,074	51,993	111,262	107,873
Gain on disposition of assets, net	0	146	0	146
Selling, general and administrative expenses	(16,076)	(20,762)	(48,923)	(52,986)
Income from operations	38,998	31,377	62,339	55,033
Equity in losses of investment	(13)	(107)	(82)	(378)
Net interest expense	(1,901)	(3,249)	(6,204)	(10,744)
Loss on extinguishment of long-term debt	0	(2)	(18)	(1,183)
Other expense, net	(2,285)	(709)	(2,430)	(3,225)
Royalty income and other	362	652	2,897	4,068
Income before income taxes	35,161	27,962	56,502	43,571
Income tax provision	3,539	841	6,739	1,226
Net income	31,622	27,121	49,763	42,345
Net loss attributable to redeemable noncontrolling interests	(73)	0	(104)	0
Net income attributable to common shareholders	$ 31,695	$ 27,121	$ 49,867	$ 42,345
Earnings per share of common stock (in dollars per share)
Basic	$ 0.21	$ 0.18	$ 0.33	$ 0.29
Diluted	$ 0.21	$ 0.18	$ 0.33	$ 0.29
Weighted average common shares outstanding (in shares)
Basic	147,575	146,700	147,506	146,679
Diluted	148,354	146,964	148,086	146,761

Condensed Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 31,622	$ 27,121	$ 49,763	$ 42,345
Other comprehensive loss, net of tax:
Net unrealized gain (loss) on hedges arising during the period	(274)	(88)	(701)	839
Reclassifications to net income	1,046	1,799	4,867	5,233
Income taxes on hedges	(156)	(357)	(838)	(1,298)
Net change in hedges, net of tax	616	1,354	3,328	4,774
Unrealized loss on note receivable arising during the period	0	0	0	(629)
Income taxes on note receivable	0	0	0	132
Unrealized loss on note receivable, net of tax	0	0	0	(497)
Foreign currency translation loss	(4,301)	(1,421)	(4,564)	(4,277)
Other comprehensive loss, net of tax	(3,685)	(67)	(1,236)	0
Comprehensive income	27,937	27,054	48,527	42,345
Less comprehensive loss attributable to redeemable noncontrolling interests:
Net loss	(73)	0	(104)	0
Foreign currency translation loss	(78)	0	(78)	0
Comprehensive loss attributable to redeemable noncontrolling interests	(151)	0	(182)	0
Comprehensive income attributable to common shareholders	$ 28,088	$ 27,054	$ 48,709	$ 42,345

Condensed Consolidated Statements Of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period at Dec. 31, 2017	$ 1,567,393	$ 1,284,274	$ 352,906	$ (69,787)
Balance, beginning of period (in shares) at Dec. 31, 2017		147,740
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	42,345		42,345
Reclassification of stranded tax effect to retained earnings	0		1,530	(1,530)
Foreign currency translation adjustments	(4,277)			(4,277)
Unrealized gain on hedges, net of tax	4,774			4,774
Unrealized loss on note receivable, net of tax	(497)			(497)
Accretion of redeemable noncontrolling interests	0
Equity component of debt discount on convertible senior notes	15,411	$ 15,411
Activity in company stock plans, net and other	(438)	$ (438)
Activity in company stock plans, net and other (in shares)		407
Share-based compensation	7,456	$ 7,456
Balance, end of period at Sep. 30, 2018	1,632,168	$ 1,306,703	396,781	(71,316)
Balance, end of period (in shares) at Sep. 30, 2018		148,147
Balance, beginning of period at Jun. 30, 2018	1,602,394	$ 1,303,984	369,659	(71,249)
Balance, beginning of period (in shares) at Jun. 30, 2018		148,107
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	27,121		27,121
Foreign currency translation adjustments	(1,421)			(1,421)
Unrealized gain on hedges, net of tax	1,354			1,354
Unrealized loss on note receivable, net of tax	0
Accretion of redeemable noncontrolling interests	0
Equity component of debt discount on convertible senior notes	(2)	$ (2)
Activity in company stock plans, net and other	213	$ 213
Activity in company stock plans, net and other (in shares)		40
Share-based compensation	2,509	$ 2,509
Balance, end of period at Sep. 30, 2018	1,632,168	$ 1,306,703	396,781	(71,316)
Balance, end of period (in shares) at Sep. 30, 2018		148,147
Balance, beginning of period at Dec. 31, 2018	1,617,779	$ 1,308,709	383,034	(73,964)
Balance, beginning of period (in shares) at Dec. 31, 2018		148,203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	49,867		49,867
Reclassification of deferred gain from sale and leaseback transaction to retained earnings	4,560		4,560
Foreign currency translation adjustments	(4,564)			(4,564)
Unrealized gain on hedges, net of tax	3,328			3,328
Unrealized loss on note receivable, net of tax	0
Accretion of redeemable noncontrolling interests	(43)		(43)
Activity in company stock plans, net and other	(765)	$ (765)
Activity in company stock plans, net and other (in shares)		599
Share-based compensation	8,861	$ 8,861
Balance, end of period at Sep. 30, 2019	1,679,023	$ 1,316,805	437,418	(75,200)
Balance, end of period (in shares) at Sep. 30, 2019		148,802
Balance, beginning of period at Jun. 30, 2019	1,648,396	$ 1,314,163	405,748	(71,515)
Balance, beginning of period (in shares) at Jun. 30, 2019		148,759
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	31,695		31,695
Foreign currency translation adjustments	(4,301)			(4,301)
Unrealized gain on hedges, net of tax	616			616
Unrealized loss on note receivable, net of tax	0
Accretion of redeemable noncontrolling interests	(25)		(25)
Activity in company stock plans, net and other	214	$ 214
Activity in company stock plans, net and other (in shares)		43
Share-based compensation	2,428	$ 2,428
Balance, end of period at Sep. 30, 2019	$ 1,679,023	$ 1,316,805	$ 437,418	$ (75,200)
Balance, end of period (in shares) at Sep. 30, 2019		148,802

Redeemable Noncontrolling Interests (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Balance, beginning of period	$ 3,383	$ 0
Net loss attributable to redeemable noncontrolling interests	(73)	(104)
Foreign currency translation adjustments related to redeemable noncontrolling interests	(78)	(78)
Issuance of redeemable noncontrolling interests		3,396
Accretion of redeemable noncontrolling interests	25	43
Balance, end of period	$ 3,257	$ 3,257

Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement of Cash Flows [Abstract]
Net income	$ 49,763	$ 42,345
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	84,420	83,339
Amortization of debt discounts	4,642	4,238
Amortization of debt issuance costs	2,752	2,703
Share-based compensation	8,979	7,569
Deferred income taxes	2,347	(5,716)
Equity in losses of investment	82	378
Gain on disposition of assets, net	0	146
Loss on extinguishment of long-term debt	18	1,183
Unrealized gain on derivative contracts, net	(2,351)	(2,289)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(45,399)	(15,769)
Other current assets	12,215	(5,662)
Income tax payable, net of income tax receivable	(3,143)	2,963
Accounts payable and accrued liabilities	(14,765)	6,968
Other, net	9,683	(28,723)
Net cash provided by operating activities	89,877	150,827
Cash flows from investing activities:
Capital expenditures	(45,636)	(55,431)
STL acquisition, net	(4,081)	0
Proceeds from sale of assets	2,550	25
Net cash used in investing activities	(47,167)	(55,406)
Cash flows from financing activities:
Issuance of Convertible Senior Notes due 2023	0	125,000
Repurchase of Convertible Senior Notes due 2032	0	(60,365)
Proceeds from term loan	35,000	0
Repayment of term loan	(34,567)	(62,872)
Repayment of Nordea Q5000 Loan	(26,786)	(26,786)
Repayment of MARAD Debt	(6,858)	(6,532)
Debt issuance costs	(1,544)	(3,867)
Payments related to tax withholding for share-based compensation	(1,345)	(1,058)
Proceeds from issuance of ESPP shares	462	506
Net cash used in financing activities	(35,638)	(35,974)
Effect of exchange rate changes on cash and cash equivalents	(191)	(947)
Net increase in cash and cash equivalents	6,881	58,500
Cash and cash equivalents:
Balance, beginning of year	279,459	266,592
Balance, end of period	$ 286,340	$ 325,092

Basis Of Presentation And New Accounting Standards	9 Months Ended
Basis Of Presentation And New Accounting Standards	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation And New Accounting Standards	Note 1 — Basis of Presentation and New Accounting Standards The accompanying condensed consolidated financial statements include the accounts of Helix Energy Solutions Group, Inc. and its subsidiaries (collectively, Helix). Unless the context indicates otherwise, the terms “we,” “us” and “our” in this report refer collectively to Helix and its subsidiaries. All material intercompany accounts and transactions have been eliminated. These unaudited condensed consolidated financial statements have been prepared pursuant to instructions for the Quarterly Report on Form 10-Q required to be filed with the Securities and Exchange Commission (the “SEC”) and do not include all information and footnotes normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The accompanying condensed consolidated financial statements have been prepared in conformity with GAAP in U.S. dollars and are consistent in all material respects with those applied in our 2018 Annual Report on Form 10-K (“2018 Form 10-K”) with the exception of the impact of adopting the new lease accounting standard in 2019 (see below). The preparation of these financial statements requires us to make estimates and judgments that affect the amounts reported in the financial statements and the related disclosures. Actual results may differ from our estimates. We have made all adjustments, which, unless otherwise disclosed, are of normal recurring nature, that we believe are necessary for a fair presentation of the condensed consolidated balance sheets, statements of operations, statements of comprehensive income and statements of cash flows, as applicable. The operating results for the three- and nine-month periods ended September 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. Our balance sheet as of December 31, 2018 included herein has been derived from the audited balance sheet as of December 31, 2018 included in our 2018 Form 10-K. These unaudited condensed consolidated financial statements should be read in conjunction with the annual audited consolidated financial statements and notes thereto included in our 2018 Form 10-K. Certain reclassifications were made to previously reported amounts in the consolidated financial statements and notes thereto to make them consistent with the current presentation format. New accounting standards adopted In February 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2016-02, “Leases (Topic 842)” (“ASC 842”), which was updated by subsequent amendments. ASC 842 requires a lessee to recognize a lease right-of-use asset and related lease liability for most leases, including those classified as operating leases. ASC 842 also changes the definition of a lease and requires expanded quantitative and qualitative disclosures for both lessees and lessors. We adopted ASC 842 in the first quarter of 2019 using the modified retrospective method. We also elected the package of practical expedients permitted under the transition guidance that, among other things, allows companies to carry forward their historical lease classification. Our adoption of ASC 842 resulted in the recognition of operating lease liabilities of $259.0 million and corresponding right-of-use (“ROU”) assets of $253.4 million (net of existing prepaid/deferred rent balances) as of January 1, 2019. In addition, we reclassified the remaining deferred gain of $4.6 million (net of deferred taxes of $0.9 million) on a 2016 sale and leaseback transaction to retained earnings. Subsequent to adoption, leases in foreign currencies will generate foreign currency gains and losses, and we will no longer amortize the deferred gain from the aforementioned sale and leaseback transaction. Aside from these changes, ASC 842 is not expected to have a material impact on our net earnings or cash flows. New accounting standards issued but not yet effective In June 2016, the FASB issued ASU No. 2016-13, “Measurement of Credit Losses on Financial Instruments,” which was updated by subsequent amendments. This ASU replaces the current incurred loss model for measurement of credit losses on financial assets (including trade receivables) with a forward-looking expected loss model based on historical experience, current conditions, and reasonable and supportable forecasts. The guidance will be effective for us as of January 1, 2020. We are currently evaluating the impact this guidance will have on our consolidated financial statements. We do not expect any other recent accounting standards to have a material impact on our financial position, results of operations or cash flows.

Company Overview	9 Months Ended
Company Overview	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Company Overview	Note 2 — Company Overview We are an international offshore energy services company that provides specialty services to the offshore energy industry, with a focus on well intervention and robotics operations. We provide services and methodologies that we believe are critical to maximizing production economics. Our services cover the lifecycle of an offshore oil or gas field. We provide services primarily in deepwater in the Gulf of Mexico, Brazil, North Sea, Asia Pacific and West Africa regions. Our “life of field” services are segregated into three reportable business segments: Well Intervention, Robotics and Production Facilities (Note 12). Our Well Intervention segment includes our vessels and/or equipment used to perform well intervention services primarily in the Gulf of Mexico, Brazil, the North Sea and West Africa. Our well intervention vessels include the Q4000, the Q5000, the Seawell, the Well Enhancer, and two chartered monohull vessels, the Siem Helix 1 and the Siem Helix 2. We also have a semi-submersible well intervention vessel under completion, the Q7000. Our well intervention equipment includes intervention riser systems (“IRSs”) and subsea intervention lubricators (“SILs”), some of which we provide on a stand-alone basis. Our Robotics segment includes remotely operated vehicles (“ROVs”), trenchers and a ROVDrill, which are designed to complement offshore construction and well intervention services, and three robotics support vessels under long-term charter: the Grand Canyon, the Grand Canyon II and the Grand Canyon III. We also utilize spot vessels as needed, including the Ross Candies, which is under a flexible charter agreement. Our Production Facilities segment includes the Helix Producer I (the “HP I”), a ship-shaped dynamically positioned floating production vessel, the Helix Fast Response System (the “HFRS”), our ownership interest in Independence Hub, LLC (“Independence Hub”) (Note 4), and several wells and related infrastructure associated with the Droshky Prospect that we acquired from Marathon Oil Corporation (“Marathon Oil”) on January 18, 2019. All of our current production facilities activities are located in the Gulf of Mexico. On May 29, 2019, we acquired a 70% controlling interest in Subsea Technologies Group Limited (“STL”), a subsea engineering firm based in Aberdeen, Scotland, for $5.1 million, including $4.1 million in cash and $1.0 million that we loaned to STL in December 2018. The acquisition is expected to strengthen our supply of subsea intervention systems. The holders of the remaining 30% noncontrolling interest have the right to put their shares to us in June 2024. These redeemable noncontrolling interests have been recognized as temporary equity at their estimated fair value of $3.4 million at the acquisition date. We recognized $2.4 million of identifiable intangible assets and $6.9 million of goodwill, which are reflected in “Other assets” in the accompanying condensed consolidated balance sheet (Note 3). Goodwill is related to the synergies expected from the acquisition. The ultimate fair values of acquired assets, liabilities and noncontrolling interests are provisional and pending final assessment of the valuations. STL is included in our Well Intervention segment (Note 12) and its revenue and earnings are immaterial to our consolidated results.

Details Of Certain Accounts

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Details Of Certain Accounts

Note 3 — Details of Certain Accounts

Other current assets consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Contract assets (Note 9)	$	580	$	5,829
Prepaids	14,876		10,306
Deferred costs (Note 9)	26,424		27,368
Other receivable (Note 13)	13,000		—
Other	6,871		8,091
Total other current assets	$	61,751	$	51,594

Other assets, net consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Prepaids	$	861	$	5,896
Deferred recertification and dry dock costs, net	16,678		8,525
Deferred costs (Note 9)	20,695		38,574
Charter deposit ⁽¹⁾	12,544		12,544
Other receivable (Note 13)	26,702		—
Goodwill (Note 2)	6,637		—
Intangible assets with finite lives, net (Note 2)	3,703		1,402
Other	2,503		3,116
Total other assets, net	$	90,323	$	70,057


(1)	This amount is deposited with the owner of the Siem Helix 2 to offset certain payment obligations associated with the vessel at the end of the charter term.

Accrued liabilities consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Accrued payroll and related benefits	$	25,853	$	43,079
Investee losses in excess of investment (Note 4)	7,638		5,125
Deferred revenue (Note 9)	10,814		10,103
Asset retirement obligations (Note 13)	11,556		—
Derivative liability (Note 17)	2,723		9,311
Other	13,398		17,976
Total accrued liabilities	$	71,982	$	85,594

Other non-current liabilities consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Investee losses in excess of investment (Note 4)	$	—	$	6,035
Deferred gain on sale of property ⁽¹⁾	—		5,052
Deferred revenue (Note 9)	9,196		15,767
Asset retirement obligations (Note 13)	27,564		—
Derivative liability (Note 17)	—		884
Other	2,248		11,800
Total other non-current liabilities	$	39,008	$	39,538

(1)

Relates to the sale and lease-back in January 2016 of our office and warehouse property located in Aberdeen, Scotland. The deferred gain had been amortized over a 15-year minimum lease term prior to our adoption of ASC 842 on January 1, 2019. See Note 1 for the effect of ASC 842 on this deferred gain.

Equity Method Investments	9 Months Ended
Equity Method Investments	Sep. 30, 2019
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Note 4 — Equity Method Investments We have a 20% ownership interest in Independence Hub that we account for using the equity method of accounting. Independence Hub owns the “Independence Hub” platform located in Mississippi Canyon Block 920 in the Gulf of Mexico in a water depth of 8,000 feet. We are committed to providing our pro-rata portion of financial support for Independence Hub to pay its obligations as they become due. The platform decommissioning process is currently underway and is expected to be substantially completed within the next 12 months. We had a liability of $7.6 million at September 30, 2019 and $11.2 million at December 31, 2018 for our share of Independence Hub’s estimated obligations, net of remaining working capital. This liability is reflected in “Accrued liabilities” and “Other non-current liabilities” in the accompanying condensed consolidated balance sheets.

Leases

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

Leases

Note 5 — Leases

We charter vessels and lease facilities and equipment under non-cancelable contracts that expire on various dates through 2031. We also sublease some of our facilities under non-cancelable sublease agreements.

Leases with a term greater than one year are recognized on our balance sheet as ROU assets and lease liabilities. We have elected to not recognize on our balance sheet leases with an initial term of one year or less. Lease liabilities and their corresponding ROU assets are recorded at the commencement date based on the present value of lease payments over the expected lease term. We use our incremental borrowing rate, which would be the rate incurred to borrow on a collateralized basis over a similar term in a similar economic environment, to calculate the present value of lease payments. ROU assets are adjusted for any initial direct costs paid or incentives received.

We separate our long-term vessel charters between their lease components and non-lease services. We estimate the lease component using the residual estimate approach by estimating the non-lease services, which are primarily crew, repair and maintenance, and regulatory certification costs. For all other leases, we have not separated the lease components and non-lease services. The lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise the option.

We recognize operating lease cost on a straight-line basis over the lease term for both (i) leases that are recognized on the balance sheet and (ii) short-term leases. We recognize lease cost related to variable lease payments that are not recognized on the balance sheet in the period in which the obligation is incurred. The following table details the components of our lease cost (in thousands):



	Three Months Ended			Nine Months Ended
	September 30, 2019			September 30, 2019

Operating lease cost	$	18,002		$	54,191
Variable lease cost	3,630			9,927
Short-term lease cost	5,587			14,549
Sublease income	(351		)	(1,077		)
Net lease cost	$	26,868		$	77,590

Maturities of our operating lease liabilities as of September 30, 2019 are as follows (in thousands):



	Vessels			Facilities and Equipment			Total

Remainder of 2019	$	15,416		$	1,717		$	17,133
2020	59,942			6,391			66,333
2021	54,481			5,694			60,175
2022	52,105			5,103			57,208
2023	34,580			4,522			39,102
Thereafter	2,470			10,163			12,633
Total lease payments	$	218,994		$	33,590		$	252,584
Less: imputed interest	(28,272		)	(6,711		)	(34,983		)
Total operating lease liabilities	$	190,722		$	26,879		$	217,601

Current operating lease liabilities	$	47,914		$	4,926		$	52,840
Non-current operating lease liabilities	142,808			21,953			164,761
Total operating lease liabilities	$	190,722		$	26,879		$	217,601

The following table presents the weighted average remaining lease term and discount rate:



	September 30, 2019

Weighted average remaining lease term	4.2 years
Weighted average discount rate	7.54	%

The following table presents other information related to our operating leases (in thousands):



	Nine Months Ended
	September 30, 2019

Cash paid for operating lease liabilities	$	54,538
ROU assets obtained in exchange for new operating lease obligations	921

As previously disclosed in our 2018 Form 10-K and under the previous lease accounting standard, future minimum lease payments for our operating leases as of December 31, 2018 were as follows (in thousands):



	Vessels		Facilities and Equipment		Total

2019	$	116,620	$	5,881	$	122,501
2020	96,800		5,340		102,140
2021	89,216		5,185		94,401
2022	90,371		5,064		95,435
2023	51,266		4,533		55,799
Thereafter	—		10,448		10,448
Total lease payments	$	444,273	$	36,451	$	480,724

Long-Term Debt

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Long-Term Debt

Note 6 — Long-Term Debt

Scheduled maturities of our long-term debt outstanding as of September 30, 2019 are as follows (in thousands):



	Term Loan ⁽¹⁾			2022 Notes			2023 Notes			MARAD Debt			Nordea Q5000 Loan			Total

Less than one year	$	3,500		$	—		$	—		$	7,200		$	98,214		$	108,914
One to two years	3,500			—			—			7,560			—			11,060
Two to three years	27,125			125,000			—			7,937			—			160,062
Three to four years	—			—			125,000			8,333			—			133,333
Four to five years	—			—			—			8,749			—			8,749
Over five years	—			—			—			23,831			—			23,831
Gross debt	34,125			125,000			125,000			63,610			98,214			445,949
Unamortized debt discounts ⁽²⁾	—			(8,784		)	(15,376		)	—			—			(24,160		)
Unamortized debt issuance costs ⁽³⁾	(438		)	(1,368		)	(2,478		)	(3,659		)	(446		)	(8,389		)
Total debt	33,687			114,848			107,146			59,951			97,768			413,400
Less: current maturities	(3,500		)	—			—			(7,200		)	(97,768		)	(108,468		)
Long-term debt	$	30,187		$	114,848		$	107,146		$	52,751		$	—		$	304,932


(1)	Term Loan pursuant to the Credit Agreement (as defined below) matures in December 2021.


(2)	Our Convertible Senior Notes due 2022 and 2023 will increase to their face amounts through accretion of their debt discounts to interest expense through May 2022 and September 2023, respectively.


(3)	Debt issuance costs are amortized to interest expense over the term of the applicable debt agreement.

Below is a summary of certain components of our indebtedness:

Credit Agreement

On June 30, 2017, we entered into an Amended and Restated Credit Agreement (and the amendments made thereafter, collectively the “Credit Agreement”) with a group of lenders led by Bank of America, N.A. (“Bank of America”). On June 28, 2019, we amended our existing term loan (the “Term Loan”) and revolving credit facility (the “Revolving Credit Facility”) under the Credit Agreement. The Credit Agreement is comprised of a $35 million Term Loan and a Revolving Credit Facility of $175 million. The Revolving Credit Facility permits us to obtain letters of credit up to a sublimit of $25 million. Pursuant to the Credit Agreement, subject to existing lender participation and/or the participation of new lenders, and subject to standard conditions precedent, we may request aggregate commitments of up to $100 million with respect to an increase in the Revolving Credit Facility. As of September 30, 2019, we had no borrowings under the Revolving Credit Facility, and our available borrowing capacity under that facility, based on the leverage ratios, totaled $172.6 million, net of $2.4 million of letters of credit issued under that facility.

Borrowings under the Credit Agreement bear interest, at our election, at either Bank of America’s base rate, the LIBOR or a comparable successor rate, or a combination thereof. The Term Loan bearing interest at the base rate will bear interest at a per annum rate equal to Bank of America’s base rate plus a margin of 2.25%. The Term Loan bearing interest at a LIBOR rate will bear interest per annum at the LIBOR or a comparable successor rate selected by us plus a margin of 3.25%. The interest rate on the Term Loan was 5.29% as of September 30, 2019. Borrowings under the Revolving Credit Facility bearing interest at the base rate will bear interest at a per annum rate equal to Bank of America’s base rate plus a margin ranging from 1.50% to 2.50%. Borrowings under the Revolving Credit Facility bearing interest at a LIBOR rate will bear interest per annum at the LIBOR or a comparable successor rate selected by us plus a margin ranging from 2.50% to 3.50%. A letter of credit fee is payable by us equal to the applicable margin for LIBOR rate loans multiplied by the daily amount available to be drawn under the applicable letter of credit. Margins on borrowings under the Revolving Credit Facility will vary in relation to the Consolidated Total Leverage Ratio (as defined below) as provided for in the Credit Agreement. We also pay a fixed commitment fee of 0.50% per annum on the unused portion of the Revolving Credit Facility.

The Term Loan principal is required to be repaid in quarterly installments of 2.5% of the aggregate principal amount of the Term Loan, with a balloon payment at maturity. Installment amounts are subject to adjustment for any prepayments on the Term Loan. We may prepay indebtedness outstanding under the Term Loan without premium or penalty, but may not reborrow any amounts prepaid. We may prepay indebtedness outstanding under the Revolving Credit Facility without premium or penalty, and may reborrow any amounts prepaid up to the amount of the Revolving Credit Facility. Borrowings under the Credit Agreement mature on December 31, 2021.

The Credit Agreement and the other documents entered into in connection with the Credit Agreement include terms and conditions, including covenants, which we consider customary for this type of transaction. The covenants include certain restrictions on our and certain of our subsidiaries’ ability to grant liens, incur indebtedness, make investments, merge or consolidate, sell or transfer assets, pay dividends and make capital expenditures. In addition, the Credit Agreement obligates us to meet minimum ratio requirements of EBITDA to interest charges (Consolidated Interest Coverage Ratio), funded debt to EBITDA (Consolidated Total Leverage Ratio) and secured funded debt to EBITDA (Consolidated Secured Leverage Ratio).

We may designate one or more of our new foreign subsidiaries as subsidiaries not generally subject to the covenants in the Credit Agreement (the “Unrestricted Subsidiaries”). The debt and EBITDA of the Unrestricted Subsidiaries with the exception of Helix Q5000 Holdings, S.à r.l. (“Q5000 Holdings”), a wholly owned subsidiary incorporated in Luxembourg, are not included in the calculations of our financial covenants. Our obligations under the Credit Agreement, and those of our subsidiary guarantors under their guarantee, are secured by (i) most of the assets of the parent company, (ii) the shares of our domestic subsidiaries (other than Cal Dive I - Title XI, Inc.) and of Helix Robotics Solutions Limited (formerly known as Canyon Offshore Limited) and (iii) most of the assets of our domestic subsidiaries (other than Cal Dive I - Title XI, Inc.) and of Helix Robotics Solutions Limited. In addition, these obligations are secured by pledges of up to 66% of the shares of certain foreign subsidiaries.

In March 2018, we prepaid $61 million of the then-existing term loan with a portion of the net proceeds from the 2023 Notes. We recognized a $0.9 million loss to write off the related unamortized debt issuance costs. In June 2019, in connection with the amendment of the Credit Agreement we wrote off the remaining unamortized debt issuance costs associated with a lender exiting the Credit Agreement. These losses are presented as “Loss on extinguishment of long-term debt” in the accompanying condensed consolidated statements of operations.

In January 2019, contemporaneously with our purchase from Marathon Oil of several wells and related infrastructure associated with the Droshky Prospect located in offshore Gulf of Mexico Green Canyon Block 244, we amended the Credit Agreement to permit the issuance of certain security to third parties for required plug and abandonment (“P&A”) obligations and to make certain capital expenditures in connection with acquired assets (Notes 2 and 13).

Convertible Senior Notes Due 2022 (“2022 Notes”)

On November 1, 2016, we completed a public offering and sale of the 2022 Notes in the aggregate principal amount of $125 million. The 2022 Notes bear interest at a rate of 4.25% per annum and are payable semi-annually in arrears on November 1 and May 1 of each year, beginning on May 1, 2017. The 2022 Notes mature on May 1, 2022 unless earlier converted, redeemed or repurchased. During certain periods and subject to certain conditions, the 2022 Notes are convertible by the holders into shares of our common stock at an initial conversion rate of 71.9748 shares of our common stock per $1,000 principal amount (which represents an initial conversion price of approximately $13.89 per share of common stock), subject to adjustment in certain circumstances. We have the right and the intention to settle the principal amount of any such future conversions in cash.

Prior to November 1, 2019, the 2022 Notes are not redeemable. On or after November 1, 2019, if certain conditions are met, we may redeem all or any portion of the 2022 Notes at a redemption price payable in cash equal to 100% of the principal amount to be redeemed, plus accrued and unpaid interest, and a “make-whole premium” (as defined in the indenture governing the 2022 Notes). Holders of the 2022 Notes may require us to repurchase the notes following a “fundamental change” (as defined in the indenture governing the 2022 Notes).

The indenture governing the 2022 Notes contains customary terms and covenants, including that upon certain events of default occurring and continuing, either the trustee under the indenture or the holders of not less than 25% in aggregate principal amount then outstanding under the 2022 Notes may declare the entire principal amount of all the notes, and the interest accrued on such notes, if any, to be immediately due and payable. In the case of certain events of bankruptcy, insolvency or reorganization relating to us or a significant subsidiary, the principal amount of the 2022 Notes together with any accrued and unpaid interest thereon will become immediately due and payable.

The 2022 Notes are accounted for by separating the net proceeds between long-term debt and shareholders’ equity. In connection with the issuance of the 2022 Notes, we recorded a debt discount of $16.9 million ($11.0 million net of tax) as a result of separating the equity component. The effective interest rate for the 2022 Notes is 7.3% after considering the effect of the accretion of the related debt discount that represented the equity component of the 2022 Notes at their inception. For the three- and nine-month periods ended September 30, 2019, interest expense (including amortization of the debt discount) related to the 2022 Notes totaled $2.1 million and $6.2 million, respectively. For the three- and nine-month periods ended September 30, 2018, interest expense (including amortization of the debt discount) related to the 2022 Notes totaled $2.0 million and $6.1 million, respectively. The remaining unamortized debt discount of the 2022 Notes was $8.8 million at September 30, 2019 and $11.0 million at December 31, 2018.

Convertible Senior Notes Due 2023 (“2023 Notes”)

On March 20, 2018, we completed a public offering and sale of the 2023 Notes in the aggregate principal amount of $125 million. The net proceeds from the issuance of the 2023 Notes were approximately $121.0 million after deducting the underwriters’ discounts and commissions and estimated offering expenses. We used the net proceeds from the issuance of the 2023 Notes to fund the required repurchase by us of $59.3 million in principal of Convertible Senior Notes due 2032 (the “2032 Notes”) described below and to prepay $61.0 million of the then-existing term loan.

The 2023 Notes bear interest at a rate of 4.125% per annum and are payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2018. The 2023 Notes mature on September 15, 2023 unless earlier converted, redeemed or repurchased. During certain periods and subject to certain conditions, the 2023 Notes are convertible by the holders into shares of our common stock at an initial conversion rate of 105.6133 shares of our common stock per $1,000 principal amount (which represents an initial conversion price of approximately $9.47 per share of common stock), subject to adjustment in certain circumstances. We have the right and the intention to settle the principal amount of any such future conversions in cash.

Prior to March 15, 2021, the 2023 Notes are not redeemable. On or after March 15, 2021, if certain conditions are met, we may redeem all or any portion of the 2023 Notes at a redemption price payable in cash equal to 100% of the principal amount to be redeemed, plus accrued and unpaid interest, and a “make-whole premium” (as defined in the indenture governing the 2023 Notes). Holders of the 2023 Notes may require us to repurchase the notes following a “fundamental change” (as defined in the indenture governing the 2023 Notes).

The indenture governing the 2023 Notes contains customary terms and covenants, including that upon certain events of default occurring and continuing, either the trustee under the indenture or the holders of not less than 25% in aggregate principal amount then outstanding under the 2023 Notes may declare the entire principal amount of all the notes, and the interest accrued on such notes, if any, to be immediately due and payable. In the case of certain events of bankruptcy, insolvency or reorganization relating to us or a significant subsidiary, the principal amount of the 2023 Notes together with any accrued and unpaid interest thereon will become immediately due and payable.

The 2023 Notes are accounted for by separating the net proceeds between long-term debt and shareholders’ equity. In connection with the issuance of the 2023 Notes, we recorded a debt discount of $20.1 million ($15.9 million net of tax) as a result of separating the equity component. The effective interest rate for the 2023 Notes is 7.8% after considering the effect of the accretion of the related debt discount that represented the equity component of the 2023 Notes at their inception. For the three- and nine-month periods ended September 30, 2019, interest expense (including amortization of the debt discount) related to the 2023 Notes totaled $2.1 million and $6.3 million, respectively. For the three- and nine-month periods ended September 30, 2018, interest expense (including amortization of the debt discount) related to the 2023 Notes totaled $2.1 million and $4.3 million, respectively. The remaining unamortized debt discount of the 2023 Notes was $15.4 million at September 30, 2019 and $17.8 million at December 31, 2018.

MARAD Debt

This U.S. government-guaranteed financing (the “MARAD Debt”), pursuant to Title XI of the Merchant Marine Act of 1936 administered by the Maritime Administration, was used to finance the construction of the Q4000. The MARAD Debt is collateralized by the Q4000 and is guaranteed 50% by us. The MARAD Debt is payable in equal semi-annual installments, matures in February 2027 and bears interest at a rate of 4.93%.

Nordea Credit Agreement

In September 2014, Q5000 Holdings entered into a credit agreement (the “Nordea Credit Agreement”) with a syndicated bank lending group for a term loan (the “Nordea Q5000 Loan”) in an amount of up to $250 million. The Nordea Q5000 Loan was funded in the amount of $250 million in April 2015 at the time the Q5000 was delivered to us. The parent company of Q5000 Holdings, Helix Vessel Finance S.à r.l., also a wholly owned Luxembourg subsidiary, guaranteed the Nordea Q5000 Loan. The loan is secured by the Q5000 and its charter earnings as well as by a pledge of the shares of Q5000 Holdings. This indebtedness is non-recourse to Helix.

The Nordea Q5000 Loan bears interest at a LIBOR rate plus a margin of 2.5%. The Nordea Q5000 Loan matures on April 30, 2020 and is repayable in scheduled quarterly principal installments of $8.9 million with a balloon payment of $80.4 million at maturity. The remaining principal balance and unamortized debt issuance costs related to the Nordea Q5000 Loan are classified as current. Q5000 Holdings may elect to prepay indebtedness outstanding under the Nordea Q5000 Loan without premium or penalty, but may not reborrow any amounts prepaid. Quarterly principal installments are subject to adjustment for any prepayments on this debt. In June 2015, we entered into interest rate swap contracts to fix the one-month LIBOR rate on a portion of our borrowings under the Nordea Q5000 Loan (Note 17). The total notional amount of the swaps (initially $187.5 million) decreases in proportion to the reduction in the principal amount outstanding under the Nordea Q5000 Loan. The fixed LIBOR rates are approximately 150 basis points.

The Nordea Credit Agreement and related loan documents include terms and conditions, including covenants and prepayment requirements, that we consider customary for this type of transaction. The covenants include restrictions on Q5000 Holdings’s ability to grant liens, incur indebtedness, make investments, merge or consolidate, sell or transfer assets, and pay dividends. In addition, the Nordea Credit Agreement obligates Q5000 Holdings to meet certain minimum financial requirements, including liquidity, consolidated debt service coverage and collateral maintenance.

Convertible Senior Notes Due 2032

In March 2012, we issued $200 million of 3.25% Convertible Senior Notes, which were originally scheduled to mature on March 15, 2032. In March 2018, we made a tender offer for the repurchase of the 2032 Notes outstanding on the first repurchase date as required by the indenture governing the 2032 Notes, and as a result we repurchased $59.3 million in aggregate principal amount of the 2032 Notes on March 20, 2018. The total repurchase price was $59.5 million, including $0.2 million in fees. We recognized a $0.2 million loss in connection with the repurchase of the 2032 Notes. The loss is presented as “Loss on extinguishment of long-term debt” in the accompanying condensed consolidated statement of operations. On May 4, 2018, we redeemed the remaining $0.8 million in aggregate principal amount of the 2032 Notes.

Other

In accordance with the Credit Agreement, the 2022 Notes, the 2023 Notes, the MARAD Debt agreements and the Nordea Credit Agreement, we are required to comply with certain covenants, including with respect to the Credit Agreement, certain financial ratios such as a consolidated interest coverage ratio, a consolidated total leverage ratio and a consolidated secured leverage ratio, as well as the maintenance of minimum cash balance, net worth, working capital and debt-to-equity requirements. As of September 30, 2019, we were in compliance with these covenants.

The following table details the components of our net interest expense (in thousands):



	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018

Interest expense	$	7,694		$	8,171		$	23,635		$	24,511
Interest income	(652		)	(994		)	(2,085		)	(2,263		)
Capitalized interest	(5,141		)	(3,928		)	(15,346		)	(11,504		)
Net interest expense	$	1,901		$	3,249		$	6,204		$	10,744

Income Taxes

9 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Income Taxes

Note 7 — Income Taxes

We believe that our recorded deferred tax assets and liabilities are reasonable. However, tax laws and regulations are subject to interpretation, and the outcomes of tax disputes are inherently uncertain; therefore, our assessments can involve a series of complex judgments about future events and rely heavily on estimates and assumptions.

The effective tax rates for the three- and nine-month periods ended September 30, 2019 were 10.1% and 11.9%, respectively. The effective tax rates for the three- and nine-month periods ended September 30, 2018 were 3.0% and 2.8%, respectively. The increases were primarily attributable to improvements in profitability in the U.S. year over year.

Income taxes are provided based on the U.S. statutory rate and the local statutory rate for each foreign jurisdiction adjusted for items that are allowed as deductions for federal and foreign income tax reporting purposes, but not for book purposes. The primary differences between the U.S. statutory rate and our effective rate are as follows:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018

U.S. statutory rate	21.0	%	21.0	%	21.0	%	21.0	%
Foreign provision	(10.1	)	(18.5	)	(9.7	)	(19.1	)
Other	(0.8	)	0.5		0.6		0.9
Effective rate	10.1	%	3.0	%	11.9	%	2.8	%

Shareholders' Equity

9 Months Ended

Sep. 30, 2019

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Note 8 — Shareholders’ Equity

The components of accumulated other comprehensive loss (“accumulated OCI”) are as follows (in thousands):



	September 30, 2019			December 31, 2018

Cumulative foreign currency translation adjustment	$	(74,419	)	$	(69,855	)
Net unrealized loss on hedges, net of tax ⁽¹⁾	(781		)	(4,109		)
Accumulated OCI	$	(75,200	)	$	(73,964	)

(1)

Relates to foreign currency hedges for the Grand Canyon II and Grand Canyon III charters as well as interest rate swap contracts for the Nordea Q5000 Loan (Note 17) and is net of deferred income taxes totaling $0.2 million at September 30, 2019 and $1.0 million at December 31, 2018.

Revenue From Contracts With Customers

9 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Revenue From Contracts With Customers

Note 9 — Revenue from Contracts with Customers

Disaggregation of Revenue

Our revenues are derived primarily from short-term and long-term service contracts with customers. Our service contracts generally contain either provisions for specific time, material and equipment charges that are billed in accordance with the terms of such contracts (dayrate contracts) or lump sum payment provisions (lump sum contracts). We record revenues net of taxes collected from customers and remitted to governmental authorities. The following table provides information about disaggregated revenue by contract duration (in thousands):



	Well Intervention		Robotics		Production Facilities		Intercompany Eliminations ⁽¹⁾			Total Revenue
Three months ended September 30, 2019
Short-term	$	53,018	$	26,809	$	—	$	—		$	79,827
Long-term ⁽²⁾	117,188		25,100		13,777		(23,283		)	132,782
Total	$	170,206	$	51,909	$	13,777	$	(23,283	)	$	212,609

Three months ended September 30, 2018
Short-term	$	39,548	$	29,877	$	—	$	—		$	69,425
Long-term ⁽²⁾	114,893		24,463		15,877		(12,083		)	143,150
Total	$	154,441	$	54,340	$	15,877	$	(12,083	)	$	212,575


Nine months ended September 30, 2019
Short-term	$	145,611	$	80,440	$	—	$	—		$	226,051
Long-term ⁽²⁾	305,900		55,956		44,651		(51,398		)	355,109
Total	$	451,511	$	136,396	$	44,651	$	(51,398	)	$	581,160

Nine months ended September 30, 2018
Short-term	$	143,510	$	74,050	$	—	$	—		$	217,560
Long-term ⁽²⁾	302,259		46,519		48,541		(33,417		)	363,902
Total	$	445,769	$	120,569	$	48,541	$	(33,417	)	$	581,462


(1)	Intercompany revenues among our business segments are under agreements that are considered long-term.


(2)	Contracts are classified as long-term if all or part of the contract is to be performed over a period extending beyond 12 months from the effective date of the contract. Long-term contracts may include multi-year agreements whereby the commitment for services in any one year may be short in duration.

Contract Balances

Accounts receivable are recognized when our right to consideration becomes unconditional. Accounts receivable that have been billed to customers are recorded as trade accounts receivable while accounts receivable that have not been billed to customers are recorded as unbilled accounts receivable.

Contract assets are rights to consideration in exchange for services that we have provided to a customer when those rights are conditioned on our future performance. Contract assets generally consist of (i) demobilization fees recognized ratably over the contract term but invoiced upon completion of the demobilization activities and (ii) revenue recognized in excess of the amount billed to the customer for lump sum contracts when the cost-to-cost method of revenue recognition is utilized. Contract assets are reflected in “Other current assets” on the accompanying condensed consolidated balance sheets (Note 3). Contract assets were $0.6 million at September 30, 2019 and $5.8 million at December 31, 2018. We incurred no impairment losses on our accounts receivable and contract assets for the three- and nine-month periods ended September 30, 2019 and 2018.

Contract liabilities are obligations to provide future services to a customer for which we have already received, or have the unconditional right to receive, the consideration for those services from the customer. Contract liabilities may consist of (i) advance payments received from customers, including upfront mobilization fees allocated to a single performance obligation and recognized ratably over the contract term and/or (ii) amounts billed to the customer in excess of revenue recognized for lump sum contracts when the cost-to-cost method of revenue recognition is utilized. Contract liabilities are reflected as “Deferred revenue,” a component of “Accrued liabilities” and “Other non-current liabilities” on the accompanying condensed consolidated balance sheets (Note 3). Contract liabilities totaled $20.0 million at September 30, 2019 and $25.9 million at December 31, 2018. Revenue recognized for the three- and nine-month periods ended September 30, 2019 included $4.0 million and $7.4 million, respectively, that were included in the contract liability balance at the beginning of each period. Revenue recognized for the three- and nine-month periods ended September 30, 2018 included $7.4 million and $10.8 million, respectively, that were included in the contract liability balance at the beginning of each period.

We report the net contract asset or contract liability position on a contract-by-contract basis at the end of each reporting period.

Performance Obligations

As of September 30, 2019, $833.8 million related to unsatisfied performance obligations was expected to be recognized as revenue in the future, with $114.5 million in 2019, $443.2 million in 2020 and $276.1 million in 2021 and thereafter. These amounts include fixed consideration and estimated variable consideration for both wholly and partially unsatisfied performance obligations, including mobilization and demobilization fees. These amounts are derived from the specific terms of our contracts, and the expected timing for revenue recognition is based on the estimated start date and duration of each contract according to the information known at September 30, 2019.

For the three- and nine-month periods ended September 30, 2019 and 2018, revenues recognized from performance obligations satisfied (or partially satisfied) in previous periods were immaterial.

Contract Fulfillment Costs

Contract fulfillment costs consist of costs incurred in fulfilling a contract with a customer. Our contract fulfillment costs primarily relate to costs incurred for mobilization of personnel and equipment at the beginning of a contract and costs incurred for demobilization at the end of a contract. Mobilization costs are deferred and amortized ratably over the contract term (including anticipated contract extensions) based on the pattern of the provision of services to which the contract fulfillment costs relate. Demobilization costs are recognized when incurred at the end of the contract. Deferred contract costs are reflected as “Deferred costs,” a component of “Other current assets” and “Other assets, net” on the accompanying condensed consolidated balance sheets (Note 3). Our deferred contract costs totaled $47.1 million at September 30, 2019 and $65.9 million at December 31, 2018. For the three- and nine-month periods ended September 30, 2019, we recorded $7.7 million and $23.6 million, respectively, related to amortization of deferred contract costs existing at the beginning of each period. For the three- and nine-month periods ended September 30, 2018, we recorded $8.5 million and $25.6 million, respectively, related to amortization of deferred contract costs existing at the beginning of each period. There were no associated impairment losses for any period presented.

For additional information regarding revenue recognition, see Notes 2 and 10 to our 2018 Form 10-K.

Earnings Per Share

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Earnings Per Share

Note 10 — Earnings Per Share

We have shares of restricted stock issued and outstanding that are currently unvested. Shares of restricted stock are considered participating securities because holders of shares of unvested restricted stock are entitled to the same liquidation and dividend rights as the holders of our unrestricted common stock. We are required to compute earnings per share (“EPS”) under the two-class method in periods in which we have earnings. Under the two-class method, the undistributed earnings for each period are allocated based on the participation rights of both common shareholders and the holders of any participating securities as if earnings for the respective periods had been distributed. Because both the liquidation and dividend rights are identical, the undistributed earnings are allocated on a proportionate basis. For periods in which we have a net loss we do not use the two-class method as holders of our restricted shares are not obligated to share in such losses.

The presentation of basic EPS on the face of the accompanying condensed consolidated statements of operations is computed by dividing net income or loss by the weighted average shares of our common stock outstanding. The calculation of diluted EPS is similar to that for basic EPS, except that the denominator includes dilutive common stock equivalents and the numerator excludes the effects of dilutive common stock equivalents, if any. The computations of the numerator (income) and denominator (shares) to derive the basic and diluted EPS amounts presented on the face of the accompanying condensed consolidated statements of operations are as follows (in thousands):



	Three Months Ended September 30, 2019				Three Months Ended September 30, 2018
	Income			Shares	Income			Shares
Basic:
Net income attributable to common shareholders	$	31,695			$	27,121
Less: Undistributed earnings allocated to participating securities	(261		)		(260		)
Accretion of redeemable noncontrolling interests	(25		)		—
Net income available to common shareholders, basic	$	31,409		147,575	$	26,861		146,700


Diluted:
Net income available to common shareholders, basic	$	31,409		147,575	$	26,861		146,700
Effect of dilutive securities:
Share-based awards other than participating securities	—			779	—			264
Undistributed earnings reallocated to participating securities	1			—	—			—
Net income available to common shareholders, diluted	$	31,410		148,354	$	26,861		146,964



	Nine Months Ended September 30, 2019				Nine Months Ended September 30, 2018
	Income			Shares	Income			Shares
Basic:
Net income attributable to common shareholders	$	49,867			$	42,345
Less: Undistributed earnings allocated to participating securities	(435		)		(407		)
Accretion of redeemable noncontrolling interests	(43		)		—
Net income available to common shareholders, basic	$	49,389		147,506	$	41,938		146,679


Diluted:
Net income available to common shareholders, basic	$	49,389		147,506	$	41,938		146,679
Effect of dilutive securities:
Share-based awards other than participating securities	—			580	—			82
Undistributed earnings reallocated to participating securities	2			—	—			—
Net income available to common shareholders, diluted	$	49,391		148,086	$	41,938		146,761

The following potentially dilutive shares related to the 2022 Notes, the 2023 Notes and the 2032 Notes were excluded from the diluted EPS calculation as they were anti-dilutive (in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2019	2018	2019	2018

2022 Notes	8,997	8,997	8,997	8,997
2023 Notes	13,202	13,202	13,202	9,381
2032 Notes ⁽¹⁾	—	—	—	701

(1)

The 2032 Notes were fully redeemed in May 2018.

Employee Benefit Plans

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Employee Benefit Plans

Note 11 — Employee Benefit Plans

Long-Term Incentive Plan

We currently have one active long-term incentive plan: the 2005 Long-Term Incentive Plan, as amended and restated (the “2005 Incentive Plan”). On May 15, 2019, our shareholders approved an amendment to and restatement of the 2005 Incentive Plan to: (i) authorize 7.0 million additional shares for issuance pursuant to our equity incentive compensation strategy, (ii) establish a maximum award limit applicable to independent members of our Board of Directors (our “Board”) under the 2005 Incentive Plan, (iii) require, subject to certain exceptions, that all awards under the 2005 Incentive Plan have a minimum vesting or restriction period of one year and (iv) remove certain requirements with respect to performance-based compensation under Section 162(m) of the Internal Revenue Code that were repealed by the U.S. Tax Cuts and Jobs Act (the “2017 Tax Act”). As of September 30, 2019, there were 8.5 million shares of our common stock available for issuance under the 2005 Incentive Plan. During the nine-month period ended September 30, 2019, the following grants of share-based awards were made under the 2005 Incentive Plan:



Date of Grant	Shares/ Units	Grant Date Fair Value Per Share/Unit		Vesting Period

January 2, 2019 ⁽¹⁾	688,540	$	5.41	33% per year over three years
January 2, 2019 ⁽²⁾	688,540	7.60		100% on January 2, 2022
January 2, 2019 ⁽³⁾	11,841	5.41		100% on January 1, 2021
April 1, 2019 ⁽³⁾	7,625	7.91		100% on January 1, 2021
July 1, 2019 ⁽³⁾	8,727	8.63		100% on January 1, 2021
August 1, 2019 ⁽⁴⁾	7,151	8.76		100% on August 1, 2020


(1)	Reflects grants of restricted stock to our executive officers and select management employees.


(2)	Reflects grants of performance share units (“PSUs”) to our executive officers and select management employees. The PSUs provide for an award based on the performance of our common stock over a three-year period with the maximum amount of the award being 200% of the original PSU awards and the minimum amount being zero.


(3)	Reflects grants of restricted stock to certain independent members of our Board who have elected to take their quarterly fees in stock in lieu of cash.


(4)	Reflects a grant of restricted stock made to a new independent member of our Board upon her joining our Board.

Compensation cost for restricted stock is the product of the grant date fair value of each share and the number of shares granted and is recognized over the applicable vesting period on a straight-line basis. Forfeitures are recognized as they occur. For the three- and nine-month periods ended September 30, 2019, $1.2 million and $4.9 million respectively, were recognized as share-based compensation related to restricted stock. For the three- and nine-month periods ended September 30, 2018, $1.5 million and $4.5 million, respectively, were recognized as share-based compensation related to restricted stock.

The estimated fair value of PSUs is determined using a Monte Carlo simulation model. PSUs granted prior to 2017 could be settled in either cash or shares of our common stock and were accounted for as liability awards. Beginning in 2017, PSUs granted are to be settled solely in shares of our common stock and therefore are accounted for as equity awards. Compensation cost for PSUs that are accounted for as equity awards is measured based on the estimated grant date fair value and recognized over the vesting period on a straight-line basis as an increase to equity. For the three- and nine-month periods ended September 30, 2019, $1.2 million and $3.9 million, respectively, were recognized as share-based compensation related to PSUs. For the three- and nine-month periods ended September 30, 2018, $6.3 million and $11.5 million, respectively, were recognized as share-based compensation related to PSUs. The liability balance for previously unvested PSUs granted in January 2016 was $11.1 million at December 31, 2018, which we settled in cash when those PSUs vested in January 2019.

Additionally in 2019 and 2018, we granted fixed-value cash awards of $4.6 million and $5.2 million, respectively, to select management employees under the 2005 Incentive Plan. The value of fixed value cash awards is recognized on a straight-line basis over a vesting period of three years. For the three- and nine-month periods ended September 30, 2019, $0.8 million and $2.4 million, respectively, were recognized as compensation cost. For the three- and nine-month periods ended September 30, 2018, $0.5 million and $1.3 million, respectively, were recognized as compensation cost.

Employee Stock Purchase Plan

We have an employee stock purchase plan (the “ESPP”). On May 15, 2019, our shareholders approved an amendment to and restatement of the ESPP to: (i) increase the shares authorized for issuance by 1.5 million shares and (ii) delegate to an internal administrator the authority to establish the maximum shares purchasable during a purchase period. As of September 30, 2019, 2.0 million shares were available for issuance under the ESPP. The ESPP currently has a purchase limit of 260 shares per employee per purchase period.

For more information regarding our employee benefit plans, including the 2005 Incentive Plan and the ESPP, see Note 12 to our 2018 Form 10-K.

Business Segment Information

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Business Segment Information

Note 12 — Business Segment Information

We have three reportable business segments: Well Intervention, Robotics and Production Facilities. Our U.S., U.K. and Brazil well intervention operating segments are aggregated into the Well Intervention business segment for financial reporting purposes. Our Well Intervention segment includes our vessels and/or equipment used to perform well intervention services primarily in the Gulf of Mexico, Brazil, the North Sea and West Africa. Our well intervention vessels include the Q4000, the Q5000, the Seawell, the Well Enhancer, and the chartered Siem Helix 1 and Siem Helix 2 vessels. Our well intervention equipment includes IRSs and SILs, some of which we provide on a stand-alone basis. Our Robotics segment includes ROVs, trenchers and a ROVDrill, which are designed to complement offshore construction and well intervention services, three robotics support vessels under long-term charter: the Grand Canyon, the Grand Canyon II and the Grand Canyon III, and spot vessels, including the Ross Candies, which is under a flexible charter agreement. Our Production Facilities segment includes the HP I, the HFRS, our ownership interest in Independence Hub (Note 4) and our ownership of certain oil and gas properties that we acquired from Marathon Oil in January 2019 (Note 13). All material intercompany transactions between the segments have been eliminated.

We evaluate our performance based on operating income of each reportable segment. Certain financial data by reportable segment are summarized as follows (in thousands):



	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Net revenues —
Well Intervention	$	170,206		$	154,441		$	451,511		$	445,769
Robotics	51,909			54,340			136,396			120,569
Production Facilities	13,777			15,877			44,651			48,541
Intercompany eliminations	(23,283		)	(12,083		)	(51,398		)	(33,417		)
Total	$	212,609		$	212,575		$	581,160		$	581,462

Income (loss) from operations —
Well Intervention	$	37,689		$	34,427		$	74,002		$	82,774
Robotics	8,876			5,601			7,921			(12,818		)
Production Facilities	3,050			6,694			11,907			20,919
Segment operating income	49,615			46,722			93,830			90,875
Corporate, eliminations and other	(10,617		)	(15,345		)	(31,491		)	(35,842		)
Total	$	38,998		$	31,377		$	62,339		$	55,033

Intercompany segment amounts are derived primarily from equipment and services provided to other business segments at rates consistent with those charged to third parties. Intercompany segment revenues are as follows (in thousands):



	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018

Well Intervention ⁽¹⁾	$	15,318	$	4,379	$	28,355	$	10,546
Robotics	7,965		7,704		23,043		22,871
Total	$	23,283	$	12,083	$	51,398	$	33,417


(1)	Amounts in the three- and nine-month periods ended September 30, 2019 included $10.6 million and $15.9 million, respectively, associated with P&A work on the Droshky wells for our Production Facilities segment (Notes 2 and 13). Upon completion of the P&A work Marathon Oil is contractually obligated to remit payment to us.

Segment assets are comprised of all assets attributable to each reportable segment. Corporate and other includes all assets not directly identifiable with our business segments, most notably the majority of our cash and cash equivalents. The following table reflects total assets by reportable segment (in thousands):



	September 30, 2019		December 31, 2018

Well Intervention	$	2,133,205	$	1,916,638
Robotics	183,125		147,602
Production Facilities	159,225		120,845
Corporate and other	137,956		162,645
Total	$	2,613,511	$	2,347,730

Asset Retirement Obligations

9 Months Ended

Sep. 30, 2019

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

Note 13 — Asset Retirement Obligations

Our asset retirement obligations (“AROs”) consist of estimated costs for subsea infrastructure P&A activities. The estimated costs are discounted to present value using a credit-adjusted risk-free discount rate. After its initial recognition, an ARO liability is increased for the passage of time as accretion expense, which is a component of our depreciation and amortization expense. An ARO liability may also change based on revisions in estimated costs and/or timing to settle the obligations.

The following table describes the changes in our AROs (both current and long-term) (in thousands):



AROs at January 1, 2019	$	—
Liability incurred during the period ⁽¹⁾	53,294
Liability settled during the period	(15,944		)
Accretion expense	1,770
AROs at September 30, 2019	$	39,120

(1)

In connection with the acquisition on January 18, 2019 of certain assets related to the Droshky Prospect (Note 2), we assumed the AROs for the required P&A of those assets in exchange for agreed-upon amounts to be paid by Marathon Oil as the P&A work is completed. We initially recognized $53.3 million of ARO liability, $50.8 million of receivables and $2.5 million of acquired property for this transaction.

Commitments And Contingencies And Other Matters	9 Months Ended
Commitments And Contingencies And Other Matters	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies And Other Matters	Note 14 — Commitments and Contingencies and Other Matters Commitments We have long-term charter agreements with Siem Offshore AS (“Siem”) for the Siem Helix 1 and Siem Helix 2 vessels used in connection with our contracts with Petróleo Brasileiro S.A. (“Petrobras”) to perform well intervention work offshore Brazil. The initial term of the charter agreements with Siem is for seven years from the respective vessel delivery dates with options to extend. We have long-term charter agreements for the Grand Canyon, Grand Canyon II and Grand Canyon III vessels for use in our robotics operations. The charter agreements expire in October 2019 for the Grand Canyon, in April 2021 for the Grand Canyon II and in May 2023 for the Grand Canyon III. In September 2013, we entered into a contract for the construction of a newbuild semi-submersible well intervention vessel, the Q7000, to be built to North Sea standards. Pursuant to the contract and subsequent amendments, 20% of the contract price was paid upon the signing of the contract, 20% was paid in each of 2016, 2017 and 2018, and the remaining 20% is due upon the delivery of the vessel. We have informed the shipyard of our intent to take delivery of the vessel in November 2019. At September 30, 2019, our total investment in the Q7000 was $446.4 million, including $276.8 million of installment payments to the shipyard. The vessel is currently in the final preparation phase for work expected to commence in early 2020. Contingencies and Claims We believe that there are currently no contingencies that would have a material adverse effect on our financial position, results of operations and cash flows. Litigation We are involved in various legal proceedings, some involving claims for personal injury under the General Maritime Laws of the United States and the Jones Act. In addition, from time to time we receive other claims, such as contract and employment-related disputes, in the normal course of business.

Statement Of Cash Flow Information

9 Months Ended

Sep. 30, 2019

Supplemental Cash Flow Information [Abstract]

Statement Of Cash Flow Information

Note 15 — Statement of Cash Flow Information

We define cash and cash equivalents as cash and all highly liquid financial instruments with original maturities of three months or less. The following table provides supplemental cash flow information (in thousands):



	Nine Months Ended September 30,
	2019		2018

Interest paid, net of interest capitalized	$	2,404	$	6,620
Income taxes paid	7,535		4,699

Our non-cash investing activities include the acquisition of property and equipment for which payment has not been made. These non-cash capital additions totaled $14.0 million at September 30, 2019 and $9.9 million at December 31, 2018.

Fair Value Measurements

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 16 — Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value accounting rules establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:


•	Level 1 — Observable inputs such as quoted prices in active markets;


•	Level 2 — Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and


•	Level 3 — Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions.

Assets and liabilities measured at fair value are based on one or more of three valuation approaches as follows:


(a)	Market Approach — Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.


(b)	Cost Approach — Amount that would be required to replace the service capacity of an asset (replacement cost).


(c)	Income Approach — Techniques to convert expected future cash flows to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).

Our financial instruments include cash and cash equivalents, receivables, accounts payable, long-term debt and derivative instruments. The carrying amount of cash and cash equivalents, trade and other current receivables as well as accounts payable approximates fair value due to the short-term nature of these instruments. The fair value of our derivative instruments (Note 17) reflects our best estimate and is based upon exchange or over-the-counter quotations whenever they are available. Quoted valuations may not be available due to location differences or terms that extend beyond the period for which quotations are available. Where quotes are not available, we utilize other valuation techniques or models to estimate market values. These modeling techniques require us to make estimations of future prices, price correlation, volatility and liquidity based on market data. Our actual results may differ from our estimates, and these differences could be positive or negative. The following tables provide additional information relating to those financial instruments measured at fair value on a recurring basis (in thousands):



	Fair Value at September 30, 2019
	Level 1		Level 2		Level 3		Total		Valuation Approach
Assets:
Interest rate swaps	$	—	$	108	$	—	$	108	(c)

Liabilities:
Foreign exchange contracts — hedging instruments	—		1,089		—		1,089		(c)
Foreign exchange contracts — non-hedging instruments	—		1,634		—		1,634		(c)
Total net liability	$	—	$	2,615	$	—	$	2,615



	Fair Value at December 31, 2018
	Level 1		Level 2		Level 3		Total		Valuation Approach
Assets:
Interest rate swaps	$	—	$	1,064	$	—	$	1,064	(c)

Liabilities:
Foreign exchange contracts — hedging instruments	—		6,211		—		6,211		(c)
Foreign exchange contracts — non-hedging instruments	—		3,984		—		3,984		(c)
Total net liability	$	—	$	9,131	$	—	$	9,131

The principal amount and estimated fair value of our long-term debt are as follows (in thousands):



	September 30, 2019				December 31, 2018
	Principal Amount ⁽¹⁾		Fair Value ^{(2) (3)}		Principal Amount ⁽¹⁾		Fair Value ^{(2) (3)}

Term Loan (previously scheduled to mature June 2020)	$	—	$	—	$	33,693	$	33,314
Term Loan (matures December 2021)	34,125		33,698		—		—
Nordea Q5000 Loan (matures April 2020)	98,214		98,214		125,000		122,500
MARAD Debt (matures February 2027)	63,610		68,972		70,468		74,406
2022 Notes (mature May 2022)	125,000		126,094		125,000		114,298
2023 Notes (mature September 2023)	125,000		146,719		125,000		114,688
Total debt	$	445,949	$	473,697	$	479,161	$	459,206


(1)	Principal amount includes current maturities and excludes the related unamortized debt discount and debt issuance costs. See Note 6 for additional disclosures on our long-term debt.

(2)

The estimated fair value of the 2022 Notes and the 2023 Notes was determined using Level 1 fair value inputs under the market approach. The fair value of the term loans, the Nordea Q5000 Loan and the MARAD Debt was estimated using Level 2 fair value inputs under the market approach, which was determined using a third-party evaluation of the remaining average life and outstanding principal balance of the indebtedness as compared to other obligations in the marketplace with similar terms.

(3)

The principal amount and estimated fair value of the 2022 Notes and the 2023 Notes are for the entire instrument inclusive of the conversion feature reported in shareholders’ equity.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Derivative Instruments And Hedging Activities

9 Months Ended

Sep. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments And Hedging Activities

Note 17 — Derivative Instruments and Hedging Activities

Our business is exposed to market risks associated with interest rates and foreign currency exchange rates. Our risk management activities involve the use of derivative financial instruments to mitigate the impact of market risk exposure related to variable interest rates and foreign currency exchange rates. To reduce the impact of these risks on earnings and increase the predictability of our cash flows, from time to time we enter into certain derivative contracts, including interest rate swaps and foreign currency exchange contracts. All derivative instruments are reflected in the accompanying condensed consolidated balance sheets at fair value.

We engage solely in cash flow hedges. Cash flow hedges are entered into to hedge the variability of cash flows related to a forecasted transaction or to be received or paid related to a recognized asset or liability. Changes in the fair value of derivative instruments that are designated as cash flow hedges are reported in OCI. These changes are subsequently reclassified into earnings when the hedged transactions affect earnings. Changes in the fair value of a derivative instrument that does not qualify for hedge accounting are recorded in earnings in the period in which the change occurs.

For additional information regarding our accounting for derivative instruments and hedging activities, see Notes 2 and 18 to our 2018 Form 10-K.

Interest Rate Risk

From time to time, we enter into interest rate swaps to stabilize cash flows related to our long-term variable interest rate debt. In June 2015 we entered into interest rate swap contracts to fix the interest rate on $187.5 million of the Nordea Q5000 Loan (Note 6). These swap contracts, which are settled monthly, began in June 2015 and extend through April 2020. Our interest rate swap contracts qualify for cash flow hedge accounting treatment. Changes in the fair value of interest rate swaps are reported in accumulated OCI (net of tax). These changes are subsequently reclassified into earnings when the anticipated interest is recognized as interest expense.

Foreign Currency Exchange Rate Risk

Because we operate in various regions around the world, we conduct a portion of our business in currencies other than the U.S. dollar. We enter into foreign currency exchange contracts from time to time to stabilize expected cash outflows related to our vessel charters that are denominated in foreign currencies.

In February 2013, we entered into foreign currency exchange contracts to hedge our foreign currency exposure associated with the Grand Canyon II and Grand Canyon III charter payments denominated in Norwegian kroner through July 2019 and February 2020, respectively. Unrealized losses associated with our foreign currency exchange contracts that qualify for hedge accounting treatment are included in accumulated OCI (net of tax). Changes in unrealized losses associated with the foreign currency exchange contracts that are not designated as cash flow hedges are reflected in “Other expense, net” in the accompanying condensed consolidated statements of operations.

Quantitative Disclosures Relating to Derivative Instruments

The following table presents the balance sheet location and fair value of our derivative instruments that were designated as hedging instruments (in thousands):



	September 30, 2019			December 31, 2018
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Asset Derivative Instruments:
Interest rate swaps	Other current assets	$	108	Other current assets	$	863
Interest rate swaps	Other assets, net	—		Other assets, net	201
		$	108		$	1,064

Liability Derivative Instruments:
Foreign exchange contracts	Accrued liabilities	$	1,089	Accrued liabilities	$	5,857
Foreign exchange contracts	Other non-current liabilities	—		Other non-current liabilities	354
		$	1,089		$	6,211

The following table presents the balance sheet location and fair value of our derivative instruments that were not designated as hedging instruments (in thousands):



	September 30, 2019			December 31, 2018
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Liability Derivative Instruments:
Foreign exchange contracts	Accrued liabilities	$	1,634	Accrued liabilities	$	3,454
Foreign exchange contracts	Other non-current liabilities	—		Other non-current liabilities	530
		$	1,634		$	3,984

The following tables present the impact that derivative instruments designated as hedging instruments had on our accumulated OCI (net of tax) and our condensed consolidated statements of operations (in thousands). We estimate that as of September 30, 2019, $0.8 million of net losses in accumulated OCI associated with our derivative instruments is expected to be reclassified into earnings within the next 12 months.



	Unrealized Gain (Loss) Recognized in OCI
	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018

Foreign exchange contracts	$	(280	)	$	(164	)	$	(338	)	$	(35	)
Interest rate swaps	6			76			(363		)	874
	$	(274	)	$	(88	)	$	(701	)	$	839



	Location of Gain (Loss) Reclassified from Accumulated OCI into Earnings	Gain (Loss) Reclassified from Accumulated OCI into Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018

Foreign exchange contracts	Cost of sales	$	(1,197	)	$	(1,957	)	$	(5,460	)	$	(5,538	)
Interest rate swaps	Net interest expense	151			158			593			305
		$	(1,046	)	$	(1,799	)	$	(4,867	)	$	(5,233	)

The following table presents the impact that derivative instruments not designated as hedging instruments had on our condensed consolidated statements of operations (in thousands):



	Location of Loss Recognized in Earnings	Loss Recognized in Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018

Foreign exchange contracts	Other expense, net	$	(371	)	$	(83	)	$	(413	)	$	(26	)
		$	(371	)	$	(83	)	$	(413	)	$	(26	)

Basis Of Presentation And New Accounting Standards (Policies)	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	The accompanying condensed consolidated financial statements include the accounts of Helix Energy Solutions Group, Inc. and its subsidiaries (collectively, Helix). Unless the context indicates otherwise, the terms “we,” “us” and “our” in this report refer collectively to Helix and its subsidiaries. All material intercompany accounts and transactions have been eliminated. These unaudited condensed consolidated financial statements have been prepared pursuant to instructions for the Quarterly Report on Form 10-Q required to be filed with the Securities and Exchange Commission (the “SEC”) and do not include all information and footnotes normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The accompanying condensed consolidated financial statements have been prepared in conformity with GAAP in U.S. dollars and are consistent in all material respects with those applied in our 2018 Annual Report on Form 10-K (“2018 Form 10-K”) with the exception of the impact of adopting the new lease accounting standard in 2019 (see below). The preparation of these financial statements requires us to make estimates and judgments that affect the amounts reported in the financial statements and the related disclosures. Actual results may differ from our estimates. We have made all adjustments, which, unless otherwise disclosed, are of normal recurring nature, that we believe are necessary for a fair presentation of the condensed consolidated balance sheets, statements of operations, statements of comprehensive income and statements of cash flows, as applicable. The operating results for the three- and nine-month periods ended September 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. Our balance sheet as of December 31, 2018 included herein has been derived from the audited balance sheet as of December 31, 2018 included in our 2018 Form 10-K. These unaudited condensed consolidated financial statements should be read in conjunction with the annual audited consolidated financial statements and notes thereto included in our 2018 Form 10-K.
Reclassifications	Certain reclassifications were made to previously reported amounts in the consolidated financial statements and notes thereto to make them consistent with the current presentation format.
New Accounting Standards	New accounting standards adopted In February 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2016-02, “Leases (Topic 842)” (“ASC 842”), which was updated by subsequent amendments. ASC 842 requires a lessee to recognize a lease right-of-use asset and related lease liability for most leases, including those classified as operating leases. ASC 842 also changes the definition of a lease and requires expanded quantitative and qualitative disclosures for both lessees and lessors. We adopted ASC 842 in the first quarter of 2019 using the modified retrospective method. We also elected the package of practical expedients permitted under the transition guidance that, among other things, allows companies to carry forward their historical lease classification. Our adoption of ASC 842 resulted in the recognition of operating lease liabilities of $259.0 million and corresponding right-of-use (“ROU”) assets of $253.4 million (net of existing prepaid/deferred rent balances) as of January 1, 2019. In addition, we reclassified the remaining deferred gain of $4.6 million (net of deferred taxes of $0.9 million) on a 2016 sale and leaseback transaction to retained earnings. Subsequent to adoption, leases in foreign currencies will generate foreign currency gains and losses, and we will no longer amortize the deferred gain from the aforementioned sale and leaseback transaction. Aside from these changes, ASC 842 is not expected to have a material impact on our net earnings or cash flows. New accounting standards issued but not yet effective In June 2016, the FASB issued ASU No. 2016-13, “Measurement of Credit Losses on Financial Instruments,” which was updated by subsequent amendments. This ASU replaces the current incurred loss model for measurement of credit losses on financial assets (including trade receivables) with a forward-looking expected loss model based on historical experience, current conditions, and reasonable and supportable forecasts. The guidance will be effective for us as of January 1, 2020. We are currently evaluating the impact this guidance will have on our consolidated financial statements. We do not expect any other recent accounting standards to have a material impact on our financial position, results of operations or cash flows.

Details Of Certain Accounts (Tables)

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of other current assets

Other current assets consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Contract assets (Note 9)	$	580	$	5,829
Prepaids	14,876		10,306
Deferred costs (Note 9)	26,424		27,368
Other receivable (Note 13)	13,000		—
Other	6,871		8,091
Total other current assets	$	61,751	$	51,594

Schedule of other assets, net

Other assets, net consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Prepaids	$	861	$	5,896
Deferred recertification and dry dock costs, net	16,678		8,525
Deferred costs (Note 9)	20,695		38,574
Charter deposit ⁽¹⁾	12,544		12,544
Other receivable (Note 13)	26,702		—
Goodwill (Note 2)	6,637		—
Intangible assets with finite lives, net (Note 2)	3,703		1,402
Other	2,503		3,116
Total other assets, net	$	90,323	$	70,057

(1)

This amount is deposited with the owner of the Siem Helix 2 to offset certain payment obligations associated with the vessel at the end of the charter term.

Schedule of accrued liabilities

Accrued liabilities consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Accrued payroll and related benefits	$	25,853	$	43,079
Investee losses in excess of investment (Note 4)	7,638		5,125
Deferred revenue (Note 9)	10,814		10,103
Asset retirement obligations (Note 13)	11,556		—
Derivative liability (Note 17)	2,723		9,311
Other	13,398		17,976
Total accrued liabilities	$	71,982	$	85,594

Schedule of other non-current liabilities

Other non-current liabilities consist of the following (in thousands):



	September 30, 2019		December 31, 2018

Investee losses in excess of investment (Note 4)	$	—	$	6,035
Deferred gain on sale of property ⁽¹⁾	—		5,052
Deferred revenue (Note 9)	9,196		15,767
Asset retirement obligations (Note 13)	27,564		—
Derivative liability (Note 17)	—		884
Other	2,248		11,800
Total other non-current liabilities	$	39,008	$	39,538

(1)

Leases (Tables)

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

Schedule of components of lease cost



	Three Months Ended			Nine Months Ended
	September 30, 2019			September 30, 2019

Operating lease cost	$	18,002		$	54,191
Variable lease cost	3,630			9,927
Short-term lease cost	5,587			14,549
Sublease income	(351		)	(1,077		)
Net lease cost	$	26,868		$	77,590

Schedule of maturities of operating lease liabilities

Maturities of our operating lease liabilities as of September 30, 2019 are as follows (in thousands):



	Vessels			Facilities and Equipment			Total

Remainder of 2019	$	15,416		$	1,717		$	17,133
2020	59,942			6,391			66,333
2021	54,481			5,694			60,175
2022	52,105			5,103			57,208
2023	34,580			4,522			39,102
Thereafter	2,470			10,163			12,633
Total lease payments	$	218,994		$	33,590		$	252,584
Less: imputed interest	(28,272		)	(6,711		)	(34,983		)
Total operating lease liabilities	$	190,722		$	26,879		$	217,601

Current operating lease liabilities	$	47,914		$	4,926		$	52,840
Non-current operating lease liabilities	142,808			21,953			164,761
Total operating lease liabilities	$	190,722		$	26,879		$	217,601

Schedule of weighted average remaining lease term and discount rate

The following table presents the weighted average remaining lease term and discount rate:



	September 30, 2019

Weighted average remaining lease term	4.2 years
Weighted average discount rate	7.54	%

Schedule of other information related to operating leases

The following table presents other information related to our operating leases (in thousands):



	Nine Months Ended
	September 30, 2019

Cash paid for operating lease liabilities	$	54,538
ROU assets obtained in exchange for new operating lease obligations	921

Schedule of future minimum operating lease payments



	Vessels		Facilities and Equipment		Total

2019	$	116,620	$	5,881	$	122,501
2020	96,800		5,340		102,140
2021	89,216		5,185		94,401
2022	90,371		5,064		95,435
2023	51,266		4,533		55,799
Thereafter	—		10,448		10,448
Total lease payments	$	444,273	$	36,451	$	480,724

Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Schedule of maturities of long-term debt outstanding

Scheduled maturities of our long-term debt outstanding as of September 30, 2019 are as follows (in thousands):



	Term Loan ⁽¹⁾			2022 Notes			2023 Notes			MARAD Debt			Nordea Q5000 Loan			Total

Less than one year	$	3,500		$	—		$	—		$	7,200		$	98,214		$	108,914
One to two years	3,500			—			—			7,560			—			11,060
Two to three years	27,125			125,000			—			7,937			—			160,062
Three to four years	—			—			125,000			8,333			—			133,333
Four to five years	—			—			—			8,749			—			8,749
Over five years	—			—			—			23,831			—			23,831
Gross debt	34,125			125,000			125,000			63,610			98,214			445,949
Unamortized debt discounts ⁽²⁾	—			(8,784		)	(15,376		)	—			—			(24,160		)
Unamortized debt issuance costs ⁽³⁾	(438		)	(1,368		)	(2,478		)	(3,659		)	(446		)	(8,389		)
Total debt	33,687			114,848			107,146			59,951			97,768			413,400
Less: current maturities	(3,500		)	—			—			(7,200		)	(97,768		)	(108,468		)
Long-term debt	$	30,187		$	114,848		$	107,146		$	52,751		$	—		$	304,932


(1)	Term Loan pursuant to the Credit Agreement (as defined below) matures in December 2021.


(2)	Our Convertible Senior Notes due 2022 and 2023 will increase to their face amounts through accretion of their debt discounts to interest expense through May 2022 and September 2023, respectively.

(3)

Debt issuance costs are amortized to interest expense over the term of the applicable debt agreement.

Schedule of components of net interest expense

The following table details the components of our net interest expense (in thousands):



	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018

Interest expense	$	7,694		$	8,171		$	23,635		$	24,511
Interest income	(652		)	(994		)	(2,085		)	(2,263		)
Capitalized interest	(5,141		)	(3,928		)	(15,346		)	(11,504		)
Net interest expense	$	1,901		$	3,249		$	6,204		$	10,744

Income Taxes (Tables)

9 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Schedule of differences between U.S. statutory rate and effective rate



	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018

U.S. statutory rate	21.0	%	21.0	%	21.0	%	21.0	%
Foreign provision	(10.1	)	(18.5	)	(9.7	)	(19.1	)
Other	(0.8	)	0.5		0.6		0.9
Effective rate	10.1	%	3.0	%	11.9	%	2.8	%

Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

Stockholders' Equity Note [Abstract]

Schedule of components of accumulated OCI

The components of accumulated other comprehensive loss (“accumulated OCI”) are as follows (in thousands):



	September 30, 2019			December 31, 2018

Cumulative foreign currency translation adjustment	$	(74,419	)	$	(69,855	)
Net unrealized loss on hedges, net of tax ⁽¹⁾	(781		)	(4,109		)
Accumulated OCI	$	(75,200	)	$	(73,964	)

(1)

Revenue From Contracts With Customers (Tables)

9 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Schedule of disaggregation of revenue



	Well Intervention		Robotics		Production Facilities		Intercompany Eliminations ⁽¹⁾			Total Revenue
Three months ended September 30, 2019
Short-term	$	53,018	$	26,809	$	—	$	—		$	79,827
Long-term ⁽²⁾	117,188		25,100		13,777		(23,283		)	132,782
Total	$	170,206	$	51,909	$	13,777	$	(23,283	)	$	212,609

Three months ended September 30, 2018
Short-term	$	39,548	$	29,877	$	—	$	—		$	69,425
Long-term ⁽²⁾	114,893		24,463		15,877		(12,083		)	143,150
Total	$	154,441	$	54,340	$	15,877	$	(12,083	)	$	212,575


Nine months ended September 30, 2019
Short-term	$	145,611	$	80,440	$	—	$	—		$	226,051
Long-term ⁽²⁾	305,900		55,956		44,651		(51,398		)	355,109
Total	$	451,511	$	136,396	$	44,651	$	(51,398	)	$	581,160

Nine months ended September 30, 2018
Short-term	$	143,510	$	74,050	$	—	$	—		$	217,560
Long-term ⁽²⁾	302,259		46,519		48,541		(33,417		)	363,902
Total	$	445,769	$	120,569	$	48,541	$	(33,417	)	$	581,462


(1)	Intercompany revenues among our business segments are under agreements that are considered long-term.

(2)

Contracts are classified as long-term if all or part of the contract is to be performed over a period extending beyond 12 months from the effective date of the contract. Long-term contracts may include multi-year agreements whereby the commitment for services in any one year may be short in duration.

Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Schedule of computations of basic and diluted EPS



	Three Months Ended September 30, 2019				Three Months Ended September 30, 2018
	Income			Shares	Income			Shares
Basic:
Net income attributable to common shareholders	$	31,695			$	27,121
Less: Undistributed earnings allocated to participating securities	(261		)		(260		)
Accretion of redeemable noncontrolling interests	(25		)		—
Net income available to common shareholders, basic	$	31,409		147,575	$	26,861		146,700


Diluted:
Net income available to common shareholders, basic	$	31,409		147,575	$	26,861		146,700
Effect of dilutive securities:
Share-based awards other than participating securities	—			779	—			264
Undistributed earnings reallocated to participating securities	1			—	—			—
Net income available to common shareholders, diluted	$	31,410		148,354	$	26,861		146,964



	Nine Months Ended September 30, 2019				Nine Months Ended September 30, 2018
	Income			Shares	Income			Shares
Basic:
Net income attributable to common shareholders	$	49,867			$	42,345
Less: Undistributed earnings allocated to participating securities	(435		)		(407		)
Accretion of redeemable noncontrolling interests	(43		)		—
Net income available to common shareholders, basic	$	49,389		147,506	$	41,938		146,679


Diluted:
Net income available to common shareholders, basic	$	49,389		147,506	$	41,938		146,679
Effect of dilutive securities:
Share-based awards other than participating securities	—			580	—			82
Undistributed earnings reallocated to participating securities	2			—	—			—
Net income available to common shareholders, diluted	$	49,391		148,086	$	41,938		146,761

Schedule of shares excluded from diluted EPS calculation

The following potentially dilutive shares related to the 2022 Notes, the 2023 Notes and the 2032 Notes were excluded from the diluted EPS calculation as they were anti-dilutive (in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2019	2018	2019	2018

2022 Notes	8,997	8,997	8,997	8,997
2023 Notes	13,202	13,202	13,202	9,381
2032 Notes ⁽¹⁾	—	—	—	701

(1)

The 2032 Notes were fully redeemed in May 2018.

Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Schedule of grants of share-based awards



Date of Grant	Shares/ Units	Grant Date Fair Value Per Share/Unit		Vesting Period

January 2, 2019 ⁽¹⁾	688,540	$	5.41	33% per year over three years
January 2, 2019 ⁽²⁾	688,540	7.60		100% on January 2, 2022
January 2, 2019 ⁽³⁾	11,841	5.41		100% on January 1, 2021
April 1, 2019 ⁽³⁾	7,625	7.91		100% on January 1, 2021
July 1, 2019 ⁽³⁾	8,727	8.63		100% on January 1, 2021
August 1, 2019 ⁽⁴⁾	7,151	8.76		100% on August 1, 2020


(1)	Reflects grants of restricted stock to our executive officers and select management employees.


(2)	Reflects grants of performance share units (“PSUs”) to our executive officers and select management employees. The PSUs provide for an award based on the performance of our common stock over a three-year period with the maximum amount of the award being 200% of the original PSU awards and the minimum amount being zero.


(3)	Reflects grants of restricted stock to certain independent members of our Board who have elected to take their quarterly fees in stock in lieu of cash.

(4)

Reflects a grant of restricted stock made to a new independent member of our Board upon her joining our Board.

Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Schedule of financial data by reportable segment

We evaluate our performance based on operating income of each reportable segment. Certain financial data by reportable segment are summarized as follows (in thousands):



	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Net revenues —
Well Intervention	$	170,206		$	154,441		$	451,511		$	445,769
Robotics	51,909			54,340			136,396			120,569
Production Facilities	13,777			15,877			44,651			48,541
Intercompany eliminations	(23,283		)	(12,083		)	(51,398		)	(33,417		)
Total	$	212,609		$	212,575		$	581,160		$	581,462

Income (loss) from operations —
Well Intervention	$	37,689		$	34,427		$	74,002		$	82,774
Robotics	8,876			5,601			7,921			(12,818		)
Production Facilities	3,050			6,694			11,907			20,919
Segment operating income	49,615			46,722			93,830			90,875
Corporate, eliminations and other	(10,617		)	(15,345		)	(31,491		)	(35,842		)
Total	$	38,998		$	31,377		$	62,339		$	55,033

Schedule of intercompany segment revenues



	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018

Well Intervention ⁽¹⁾	$	15,318	$	4,379	$	28,355	$	10,546
Robotics	7,965		7,704		23,043		22,871
Total	$	23,283	$	12,083	$	51,398	$	33,417

(1)

Amounts in the three- and nine-month periods ended September 30, 2019 included $10.6 million and $15.9 million, respectively, associated with P&A work on the Droshky wells for our Production Facilities segment (Notes 2 and 13). Upon completion of the P&A work Marathon Oil is contractually obligated to remit payment to us.

Schedule of total assets by reportable segment



	September 30, 2019		December 31, 2018

Well Intervention	$	2,133,205	$	1,916,638
Robotics	183,125		147,602
Production Facilities	159,225		120,845
Corporate and other	137,956		162,645
Total	$	2,613,511	$	2,347,730

Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2019

Asset Retirement Obligation Disclosure [Abstract]

Schedule of asset retirement obligations

The following table describes the changes in our AROs (both current and long-term) (in thousands):



AROs at January 1, 2019	$	—
Liability incurred during the period ⁽¹⁾	53,294
Liability settled during the period	(15,944		)
Accretion expense	1,770
AROs at September 30, 2019	$	39,120

(1)

Statement Of Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2019

Supplemental Cash Flow Information [Abstract]

Schedule of supplemental cash flow information



	Nine Months Ended September 30,
	2019		2018

Interest paid, net of interest capitalized	$	2,404	$	6,620
Income taxes paid	7,535		4,699

Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Schedule of financial instruments measured at fair value on a recurring basis



	Fair Value at September 30, 2019
	Level 1		Level 2		Level 3		Total		Valuation Approach
Assets:
Interest rate swaps	$	—	$	108	$	—	$	108	(c)

Liabilities:
Foreign exchange contracts — hedging instruments	—		1,089		—		1,089		(c)
Foreign exchange contracts — non-hedging instruments	—		1,634		—		1,634		(c)
Total net liability	$	—	$	2,615	$	—	$	2,615



	Fair Value at December 31, 2018
	Level 1		Level 2		Level 3		Total		Valuation Approach
Assets:
Interest rate swaps	$	—	$	1,064	$	—	$	1,064	(c)

Liabilities:
Foreign exchange contracts — hedging instruments	—		6,211		—		6,211		(c)
Foreign exchange contracts — non-hedging instruments	—		3,984		—		3,984		(c)
Total net liability	$	—	$	9,131	$	—	$	9,131

Schedule of principal amount and estimated fair value of long-term debt

The principal amount and estimated fair value of our long-term debt are as follows (in thousands):



	September 30, 2019				December 31, 2018
	Principal Amount ⁽¹⁾		Fair Value ^{(2) (3)}		Principal Amount ⁽¹⁾		Fair Value ^{(2) (3)}

Term Loan (previously scheduled to mature June 2020)	$	—	$	—	$	33,693	$	33,314
Term Loan (matures December 2021)	34,125		33,698		—		—
Nordea Q5000 Loan (matures April 2020)	98,214		98,214		125,000		122,500
MARAD Debt (matures February 2027)	63,610		68,972		70,468		74,406
2022 Notes (mature May 2022)	125,000		126,094		125,000		114,298
2023 Notes (mature September 2023)	125,000		146,719		125,000		114,688
Total debt	$	445,949	$	473,697	$	479,161	$	459,206


(1)	Principal amount includes current maturities and excludes the related unamortized debt discount and debt issuance costs. See Note 6 for additional disclosures on our long-term debt.

(2)

(3)

The principal amount and estimated fair value of the 2022 Notes and the 2023 Notes are for the entire instrument inclusive of the conversion feature reported in shareholders’ equity.

Derivative Instruments And Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of balance sheet location and fair value of derivative instruments designated as hedging instruments

The following table presents the balance sheet location and fair value of our derivative instruments that were designated as hedging instruments (in thousands):



	September 30, 2019			December 31, 2018
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Asset Derivative Instruments:
Interest rate swaps	Other current assets	$	108	Other current assets	$	863
Interest rate swaps	Other assets, net	—		Other assets, net	201
		$	108		$	1,064

Liability Derivative Instruments:
Foreign exchange contracts	Accrued liabilities	$	1,089	Accrued liabilities	$	5,857
Foreign exchange contracts	Other non-current liabilities	—		Other non-current liabilities	354
		$	1,089		$	6,211

Schedule of balance sheet location and fair value of derivative instruments not designated as hedging instruments

The following table presents the balance sheet location and fair value of our derivative instruments that were not designated as hedging instruments (in thousands):



	September 30, 2019			December 31, 2018
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Liability Derivative Instruments:
Foreign exchange contracts	Accrued liabilities	$	1,634	Accrued liabilities	$	3,454
Foreign exchange contracts	Other non-current liabilities	—		Other non-current liabilities	530
		$	1,634		$	3,984

Schedule of unrealized gain (loss) recognized in OCI



	Unrealized Gain (Loss) Recognized in OCI
	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018

Foreign exchange contracts	$	(280	)	$	(164	)	$	(338	)	$	(35	)
Interest rate swaps	6			76			(363		)	874
	$	(274	)	$	(88	)	$	(701	)	$	839

Schedule of gain (loss) reclassified from Accumulated OCI into earnings



	Location of Gain (Loss) Reclassified from Accumulated OCI into Earnings	Gain (Loss) Reclassified from Accumulated OCI into Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018

Foreign exchange contracts	Cost of sales	$	(1,197	)	$	(1,957	)	$	(5,460	)	$	(5,538	)
Interest rate swaps	Net interest expense	151			158			593			305
		$	(1,046	)	$	(1,799	)	$	(4,867	)	$	(5,233	)

Schedule of impact of derivative instruments not designated as hedging instruments on condensed consolidated statements of operations

The following table presents the impact that derivative instruments not designated as hedging instruments had on our condensed consolidated statements of operations (in thousands):



	Location of Loss Recognized in Earnings	Loss Recognized in Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018

Foreign exchange contracts	Other expense, net	$	(371	)	$	(83	)	$	(413	)	$	(26	)
		$	(371	)	$	(83	)	$	(413	)	$	(26	)

Basis Of Presentation And New Accounting Standards - New Accounting Standards (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	$ 217,601
Operating lease right-of-use assets	$ 213,048		$ 0
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities		$ 259,000
Operating lease right-of-use assets		253,400
Retained Earnings \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred gain on sale and leaseback transaction		4,600
Tax effect of deferred gain on sale and leaseback transaction		$ 900

Company Overview (Details)	9 Months Ended
Company Overview (Details)	Sep. 30, 2019 segment vessel
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	3
Well Intervention
Segment Reporting Information [Line Items]
Number of long-term chartered vessels	2
Robotics
Segment Reporting Information [Line Items]
Number of long-term chartered vessels	3

Company Overview - STL Acquisition (Details) - USD ($) $ in Thousands		1 Months Ended	9 Months Ended
	May 29, 2019	Dec. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition [Line Items]
Cash paid for business acquisition			$ 4,081	$ 0
STL
Business Acquisition [Line Items]
Controlling interest acquired, ownership percentage	70.00%
Total Consideration for business acquisition	$ 5,100
Cash paid for business acquisition	$ 4,100
Other payment for business acquisition		$ 1,000
Redeemable noncontrolling interests, ownership percentage	30.00%
Redeemable noncontrolling interests recognized	$ 3,400
Intangible assets recognized	$ 2,400
Goodwill recognized			$ 6,900

Details Of Certain Accounts - Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Contract assets (Note 9)	$ 580	$ 5,829
Prepaids	14,876	10,306
Deferred costs (Note 9)	26,424	27,368
Other receivable (Note 13)	13,000	0
Other	6,871	8,091
Total other current assets	$ 61,751	$ 51,594

Details Of Certain Accounts - Other Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaids	$ 861	$ 5,896
Deferred recertification and dry dock costs, net	16,678	8,525
Deferred costs (Note 9)	20,695	38,574
Charter deposit	12,544	12,544
Other receivable (Note 13)	26,702	0
Goodwill (Note 2)	6,637	0
Intangible assets with finite lives, net (Note 2)	3,703	1,402
Other	2,503	3,116
Total other assets, net	$ 90,323	$ 70,057

Details Of Certain Accounts - Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued payroll and related benefits	$ 25,853	$ 43,079
Investee losses in excess of investment (Note 4)	7,638	5,125
Deferred revenue (Note 9)	10,814	10,103
Asset retirement obligations (Note 13)	11,556	0
Derivative liability (Note 17)	2,723	9,311
Other	13,398	17,976
Total accrued liabilities	$ 71,982	$ 85,594

Details Of Certain Accounts - Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investee losses in excess of investment (Note 4)	$ 0	$ 6,035
Deferred gain on sale of property	0	5,052
Deferred revenue (Note 9)	9,196	15,767
Asset retirement obligations (Note 13)	27,564	0
Derivative liability (Note 17)	0	884
Other	2,248	11,800
Total other non-current liabilities	$ 39,008	$ 39,538
Term of lease agreement	15 years

Equity Method Investments - Narrative (Details) - Independence Hub, LLC $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($) ft	Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Percentage of ownership interest	20.00%
Water depth \| ft	8,000
Investee losses in excess of investment \| $	$ 7.6	$ 11.2

Leases - Components Of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Lease, Cost [Abstract]
Operating lease cost	$ 18,002	$ 54,191
Variable lease cost	3,630	9,927
Short-term lease cost	5,587	14,549
Sublease income	(351)	(1,077)
Net lease cost	$ 26,868	$ 77,590

Leases - Maturities Of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2019	$ 17,133
2020	66,333
2021	60,175
2022	57,208
2023	39,102
Thereafter	12,633
Total lease payments	252,584
Less: imputed interest	(34,983)
Total operating lease liabilities	217,601
Current operating lease liabilities	52,840	$ 0
Non-current operating lease liabilities	164,761	$ 0
Vessels
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2019	15,416
2020	59,942
2021	54,481
2022	52,105
2023	34,580
Thereafter	2,470
Total lease payments	218,994
Less: imputed interest	(28,272)
Total operating lease liabilities	190,722
Current operating lease liabilities	47,914
Non-current operating lease liabilities	142,808
Facilities and Equipment
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2019	1,717
2020	6,391
2021	5,694
2022	5,103
2023	4,522
Thereafter	10,163
Total lease payments	33,590
Less: imputed interest	(6,711)
Total operating lease liabilities	26,879
Current operating lease liabilities	4,926
Non-current operating lease liabilities	$ 21,953

Leases - Weighted Average Remaining Lease Term And Discount Rate (Details)	Sep. 30, 2019
Leases [Abstract]
Weighted average remaining lease term (in years)	4 years 2 months 12 days
Weighted average discount rate (as a percent)	7.54%

Leases - Other Information Related To Operating Leases (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Leases [Abstract]
Cash paid for operating lease liabilities	$ 54,538
ROU assets obtained in exchange for new operating lease obligations	$ 921

Leases - Future Minimum Operating Lease Payments (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019	$ 122,501
2020	102,140
2021	94,401
2022	95,435
2023	55,799
Thereafter	10,448
Total lease payments	480,724
Vessels
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019	116,620
2020	96,800
2021	89,216
2022	90,371
2023	51,266
Thereafter	0
Total lease payments	444,273
Facilities and Equipment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019	5,881
2020	5,340
2021	5,185
2022	5,064
2023	4,533
Thereafter	10,448
Total lease payments	$ 36,451

Long-Term Debt - Maturities Of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 28, 2019	Dec. 31, 2018	Mar. 20, 2018	Nov. 01, 2016
Debt Instrument [Line Items]
Less than one year	$ 108,914
One to two years	11,060
Two to three years	160,062
Three to four years	133,333
Four to five years	8,749
Over five years	23,831
Gross debt	445,949
Unamortized debt discounts	(24,160)
Unamortized debt issuance costs	(8,389)
Total debt	413,400
Less: current maturities	(108,468)		$ (47,252)
Long-term debt	304,932		393,063
Term Loan Maturing December 2021
Debt Instrument [Line Items]
Less than one year	3,500
One to two years	3,500
Two to three years	27,125
Three to four years	0
Four to five years	0
Over five years	0
Gross debt	34,125	$ 35,000	0
Unamortized debt discounts	0
Unamortized debt issuance costs	(438)
Total debt	33,687
Less: current maturities	(3,500)
Long-term debt	30,187
Convertible Senior Notes Maturing May 2022
Debt Instrument [Line Items]
Less than one year	0
One to two years	0
Two to three years	125,000
Three to four years	0
Four to five years	0
Over five years	0
Gross debt	125,000		125,000		$ 125,000
Unamortized debt discounts	(8,784)		(11,000)		$ (16,900)
Unamortized debt issuance costs	(1,368)
Total debt	114,848
Less: current maturities	0
Long-term debt	114,848
Convertible Senior Notes Maturing September 2023
Debt Instrument [Line Items]
Less than one year	0
One to two years	0
Two to three years	0
Three to four years	125,000
Four to five years	0
Over five years	0
Gross debt	125,000		125,000	$ 125,000
Unamortized debt discounts	(15,376)		(17,800)	$ (20,100)
Unamortized debt issuance costs	(2,478)
Total debt	107,146
Less: current maturities	0
Long-term debt	107,146
MARAD Debt Maturing February 2027
Debt Instrument [Line Items]
Less than one year	7,200
One to two years	7,560
Two to three years	7,937
Three to four years	8,333
Four to five years	8,749
Over five years	23,831
Gross debt	63,610		70,468
Unamortized debt discounts	0
Unamortized debt issuance costs	(3,659)
Total debt	59,951
Less: current maturities	(7,200)
Long-term debt	52,751
Nordea Q5000 Loan Maturing April 2020
Debt Instrument [Line Items]
Less than one year	98,214
One to two years	0
Two to three years	0
Three to four years	0
Four to five years	0
Over five years	0
Gross debt	98,214		$ 125,000
Unamortized debt discounts	0
Unamortized debt issuance costs	(446)
Total debt	97,768
Less: current maturities	(97,768)
Long-term debt	$ 0

Long-Term Debt - Credit Agreement (Details) - USD ($)			1 Months Ended	3 Months Ended		9 Months Ended
Long-Term Debt - Credit Agreement (Details) - USD ($)	Jun. 28, 2019	Jun. 30, 2017	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Debt Instrument [Line Items]
Principal amount				$ 445,949,000		$ 445,949,000
Repayment of term loan						34,567,000	$ 62,872,000
Loss on extinguishment of long-term debt				0	$ (2,000)	(18,000)	$ (1,183,000)
Term Loan Maturing December 2021
Debt Instrument [Line Items]
Principal amount	$ 35,000,000			$ 34,125,000		$ 34,125,000		$ 0
Interest rate (as a percent)				5.29%		5.29%
Frequency of periodic payment	quarterly
Periodic principal payment (as a percent)	2.50%
Term Loan Maturing December 2021 \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.25%
Term Loan Maturing December 2021 \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Revolving Credit Facility Maturing December 2021
Debt Instrument [Line Items]
Borrowing capacity	$ 175,000,000
Additional commitments (up to)	$ 100,000,000
Available borrowing capacity				$ 172,600,000		$ 172,600,000
Letters of credit issued				2,400,000		2,400,000
Commitment fee percentage	0.50%
Revolving Credit Facility Maturing December 2021 \| Base Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.50%
Revolving Credit Facility Maturing December 2021 \| Base Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Revolving Credit Facility Maturing December 2021 \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Revolving Credit Facility Maturing December 2021 \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.50%
Letter of Credit
Debt Instrument [Line Items]
Borrowing capacity	$ 25,000,000
Credit Agreement
Debt Instrument [Line Items]
Maturity date	Dec. 31, 2021
Credit Agreement \| Collateral Pledged
Debt Instrument [Line Items]
Maximum percent of shares of foreign subsidiaries		66.00%
Term Loan Maturing June 2020
Debt Instrument [Line Items]
Principal amount				$ 0		$ 0		$ 33,693,000
Repayment of term loan			$ 61,000,000.0
Loss on extinguishment of long-term debt			$ (900,000)

Long-Term Debt - Convertible Senior Notes Due 2022 (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Nov. 01, 2016 USD ($) $ / shares	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Principal amount		$ 445,949		$ 445,949
Unamortized debt discount		24,160		24,160
Interest expense		7,694	$ 8,171	23,635	$ 24,511
Convertible Senior Notes Maturing May 2022
Debt Instrument [Line Items]
Principal amount	$ 125,000	125,000		125,000		$ 125,000
Interest rate (as a percent)	4.25%
Frequency of periodic payment	semi-annually
Maturity date	May 01, 2022
Initial conversion ratio	0.0719748
Initial conversion price per share (in dollars per share) \| $ / shares	$ 13.89
Redemption price as a percentage of principal amount	100.00%
Minimum percentage in aggregate principal amount	25.00%
Unamortized debt discount	$ 16,900	8,784		8,784		$ 11,000
Carrying amount of equity component	$ 11,000
Effective interest rate (as a percent)	7.30%
Interest expense		$ 2,100	$ 2,000	$ 6,200	$ 6,100

Long-Term Debt - Convertible Senior Notes Due 2023 (Details) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 20, 2018 USD ($) $ / shares	Mar. 31, 2018 USD ($)	Mar. 31, 2012 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	May 04, 2018 USD ($)
Debt Instrument [Line Items]
Principal amount				$ 445,949		$ 445,949
Repayment of term loan						34,567	$ 62,872
Unamortized debt discount				24,160		24,160
Interest expense				7,694	$ 8,171	23,635	24,511
Convertible Senior Notes Maturing September 2023
Debt Instrument [Line Items]
Principal amount	$ 125,000			125,000		125,000		$ 125,000
Net proceeds from debt issuance	$ 121,000
Interest rate (as a percent)	4.125%
Frequency of periodic payment	semi-annually
Maturity date	Sep. 15, 2023
Initial conversion ratio	0.1056133
Initial conversion price per share (in dollars per share) \| $ / shares	$ 9.47
Redemption price as a percentage of principal amount	100.00%
Minimum percentage in aggregate principal amount	25.00%
Unamortized debt discount	$ 20,100			15,376		15,376		17,800
Carrying amount of equity component	$ 15,900
Effective interest rate (as a percent)	7.80%
Interest expense				2,100	$ 2,100	6,300	$ 4,300
Convertible Senior Notes Maturing March 2032 (Redeemed May 2018)
Debt Instrument [Line Items]
Principal amount			$ 200,000
Repurchased principal amount	$ 59,300								$ 800
Interest rate (as a percent)			3.25%
Maturity date			Mar. 15, 2032
Term Loan Maturing June 2020
Debt Instrument [Line Items]
Principal amount				$ 0		$ 0		$ 33,693
Repayment of term loan		$ 61,000

Long-Term Debt - MARAD Debt (Details) - MARAD Debt Maturing February 2027	9 Months Ended
	Sep. 30, 2019
Debt Instrument [Line Items]
Guarantor obligations (as a percent)	50.00%
Frequency of periodic payment	semi-annual
Maturity date	February 2027
Interest rate (as a percent)	4.93%

Long-Term Debt - Nordea Credit Agreement (Details) - Nordea Q5000 Loan Maturing April 2020 - USD ($) $ in Millions	1 Months Ended
	Apr. 30, 2015	Sep. 30, 2014	Jun. 30, 2015
Debt Instrument [Line Items]
Borrowing capacity		$ 250.0
Funded amount	$ 250.0
Maturity date		Apr. 30, 2020
Frequency of periodic payment		quarterly
Scheduled principal installments		$ 8.9
Balloon payment		$ 80.4
Interest Rate Swaps
Debt Instrument [Line Items]
Notional amount			$ 187.5
Fixed LIBOR rate on interest rate swaps (as a percent)			1.50%
LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		2.50%

Long-Term Debt - Convertible Senior Notes Due 2032 (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 20, 2018	Mar. 31, 2012	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	May 04, 2018
Debt Instrument [Line Items]
Principal amount			$ 445,949		$ 445,949
Repurchase of convertible debt					0	$ 60,365
Loss on extinguishment of long-term debt			$ 0	$ (2)	$ (18)	$ (1,183)
Convertible Senior Notes Maturing March 2032 (Redeemed May 2018)
Debt Instrument [Line Items]
Principal amount		$ 200,000
Interest rate (as a percent)		3.25%
Maturity date		Mar. 15, 2032
Repurchased principal amount	$ 59,300						$ 800
Repurchase of convertible debt	59,500
Payments for fees	200
Loss on extinguishment of long-term debt	$ (200)

Long-Term Debt - Components Of Net Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt Disclosure [Abstract]
Interest expense	$ 7,694	$ 8,171	$ 23,635	$ 24,511
Interest income	(652)	(994)	(2,085)	(2,263)
Capitalized interest	(5,141)	(3,928)	(15,346)	(11,504)
Net interest expense	$ 1,901	$ 3,249	$ 6,204	$ 10,744

Income Taxes - Narrative (Details)	3 Months Ended		9 Months Ended
Income Taxes - Narrative (Details)	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Effective tax rate	10.10%	3.00%	11.90%	2.80%

Income Taxes - Effective Income Tax Rate Reconciliation (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. statutory rate	21.00%	21.00%	21.00%	21.00%
Foreign provision	(10.10%)	(18.50%)	(9.70%)	(19.10%)
Other	(0.80%)	0.50%	0.60%	0.90%
Effective rate	10.10%	3.00%	11.90%	2.80%

Shareholders' Equity - Components Of Accumulated OCI (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative foreign currency translation adjustment	$ (74,419)	$ (69,855)
Net unrealized loss on hedges, net of tax	(781)	(4,109)
Accumulated OCI	(75,200)	(73,964)
Deferred tax assets	$ 200	$ 1,000

- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References + Details

Revenue From Contracts With Customers - Disaggregation Of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Net revenues	$ 212,609	$ 212,575	$ 581,160	$ 581,462
Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(23,283)	(12,083)	(51,398)	(33,417)
Well Intervention
Disaggregation of Revenue [Line Items]
Net revenues	170,206	154,441	451,511	445,769
Well Intervention \| Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(15,318)	(4,379)	(28,355)	(10,546)
Robotics
Disaggregation of Revenue [Line Items]
Net revenues	51,909	54,340	136,396	120,569
Robotics \| Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(7,965)	(7,704)	(23,043)	(22,871)
Production Facilities
Disaggregation of Revenue [Line Items]
Net revenues	13,777	15,877	44,651	48,541
Short-term
Disaggregation of Revenue [Line Items]
Net revenues	79,827	69,425	226,051	217,560
Short-term \| Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Short-term \| Well Intervention
Disaggregation of Revenue [Line Items]
Net revenues	53,018	39,548	145,611	143,510
Short-term \| Robotics
Disaggregation of Revenue [Line Items]
Net revenues	26,809	29,877	80,440	74,050
Short-term \| Production Facilities
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Long-term
Disaggregation of Revenue [Line Items]
Net revenues	132,782	143,150	355,109	363,902
Long-term \| Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(23,283)	(12,083)	(51,398)	(33,417)
Long-term \| Well Intervention
Disaggregation of Revenue [Line Items]
Net revenues	117,188	114,893	305,900	302,259
Long-term \| Robotics
Disaggregation of Revenue [Line Items]
Net revenues	25,100	24,463	55,956	46,519
Long-term \| Production Facilities
Disaggregation of Revenue [Line Items]
Net revenues	$ 13,777	$ 15,877	$ 44,651	$ 48,541

Revenue From Contracts With Customers - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract assets	$ 0.6		$ 0.6		$ 5.8
Contract liabilities	20.0		20.0		25.9
Revenue recognized	4.0	$ 7.4	7.4	$ 10.8
Deferred contract costs	47.1		47.1		$ 65.9
Amortization of deferred contract costs	7.7	$ 8.5	23.6	$ 25.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligations	114.5		114.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligations	443.2		443.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligations	276.1		276.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 833.8		$ 833.8

Earnings Per Share - Computations Of Basic And Diluted EPS (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Basic:
Net income attributable to common shareholders	$ 31,695	$ 27,121	$ 49,867	$ 42,345
Less: Undistributed earnings allocated to participating securities	(261)	(260)	(435)	(407)
Accretion of redeemable noncontrolling interests	(25)	0	(43)	0
Net income available to common shareholders, basic	$ 31,409	$ 26,861	$ 49,389	$ 41,938
Weighted average number of shares outstanding, basic (in shares)	147,575	146,700	147,506	146,679
Effect of dilutive securities:
Net income available to common shareholders, basic	$ 31,409	$ 26,861	$ 49,389	$ 41,938
Share-based awards other than participating securities	$ 0	$ 0	$ 0	$ 0
Share-based awards other than participating securities (in shares)	779	264	580	82
Undistributed earnings reallocated to participating securities	$ 1	$ 0	$ 2	$ 0
Net income available to common shareholders, diluted	$ 31,410	$ 26,861	$ 49,391	$ 41,938
Weighted average number of shares outstanding, diluted (in shares)	148,354	146,964	148,086	146,761

Earnings Per Share - Potentially Dilutive Shares Excluded From Diluted EPS Calculation (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Convertible Senior Notes Maturing May 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	8,997	8,997	8,997	8,997
Convertible Senior Notes Maturing September 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	13,202	13,202	13,202	9,381
Convertible Senior Notes Maturing March 2032 (Redeemed May 2018)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	0	0	0	701

Employee Benefit Plans - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
Employee Benefit Plans - Narrative (Details) $ in Millions	Sep. 30, 2019 USD ($) shares	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) shares	Sep. 30, 2018 USD ($)	May 15, 2019 shares	Dec. 31, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active incentive plans			1
2005 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized for issuance (in shares) \| shares					7,000,000.0
Shares available for issuance (in shares) \| shares	8,500,000		8,500,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation \| $	$ 1.2	$ 1.5	$ 4.9	$ 4.5
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation \| $	1.2	6.3	$ 3.9	11.5
Share-based award liability \| $						$ 11.1
Vesting period			3 years
Fixed Value Cash Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term incentive cash awards granted \| $	4.6		$ 4.6			$ 5.2
Vesting period			3 years
Compensation expense \| $	$ 0.8	$ 0.5	$ 2.4	$ 1.3
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized for issuance (in shares) \| shares					1,500,000
Shares available for issuance (in shares) \| shares	2,000,000.0		2,000,000.0
Purchase limit per employee (in shares) \| shares			260

Employee Benefit Plans - Share-Based Awards Granted (Details)	9 Months Ended
	Sep. 30, 2019 $ / shares shares
Performance Share Units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vesting Period	3 years
Maximum \| Performance Share Units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vesting Percentage	200.00%
Minimum \| Performance Share Units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vesting Percentage	0.00%
January 2, 2019 - 33% Per Year over Three Years
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Date of Grant	Jan. 02, 2019
Shares/ Units \| shares	688,540
Grant Date Fair Value Per Share/Unit \| $ / shares	$ 5.41
Vesting Percentage	33.00%
Vesting Period	3 years
January 2, 2019 - 100% on January 2, 2022
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Date of Grant	Jan. 02, 2019
Shares/ Units \| shares	688,540
Grant Date Fair Value Per Share/Unit \| $ / shares	$ 7.60
Vesting Percentage	100.00%
Vesting Date	Jan. 02, 2022
January 2, 2019 - 100% on January 1, 2021
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Date of Grant	Jan. 02, 2019
Shares/ Units \| shares	11,841
Grant Date Fair Value Per Share/Unit \| $ / shares	$ 5.41
Vesting Percentage	100.00%
Vesting Date	Jan. 01, 2021
April 1, 2019 - 100% on January 1, 2021
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Date of Grant	Apr. 01, 2019
Shares/ Units \| shares	7,625
Grant Date Fair Value Per Share/Unit \| $ / shares	$ 7.91
Vesting Percentage	100.00%
Vesting Date	Jan. 01, 2021
July 1, 2019 - 100% on January 1, 2021
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Date of Grant	Jul. 01, 2019
Shares/ Units \| shares	8,727
Grant Date Fair Value Per Share/Unit \| $ / shares	$ 8.63
Vesting Percentage	100.00%
Vesting Date	Jan. 01, 2021
August 1, 2019 - 100% on August 1, 2020
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Date of Grant	Aug. 01, 2019
Shares/ Units \| shares	7,151
Grant Date Fair Value Per Share/Unit \| $ / shares	$ 8.76
Vesting Percentage	100.00%
Vesting Date	Aug. 01, 2020

Business Segment Information - Narrative (Details)	9 Months Ended
Business Segment Information - Narrative (Details)	Sep. 30, 2019 segment vessel
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	3
Robotics
Segment Reporting Information [Line Items]
Number of long-term chartered vessels \| vessel	3

Business Segment Information - Financial Data By Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Net revenues	$ 212,609	$ 212,575	$ 581,160	$ 581,462
Income (loss) from operations	38,998	31,377	62,339	55,033
Reportable Segments
Segment Reporting Information [Line Items]
Income (loss) from operations	49,615	46,722	93,830	90,875
Intercompany Eliminations
Segment Reporting Information [Line Items]
Net revenues	(23,283)	(12,083)	(51,398)	(33,417)
Corporate, Eliminations and Other
Segment Reporting Information [Line Items]
Income (loss) from operations	(10,617)	(15,345)	(31,491)	(35,842)
Well Intervention
Segment Reporting Information [Line Items]
Net revenues	170,206	154,441	451,511	445,769
Well Intervention \| Reportable Segments
Segment Reporting Information [Line Items]
Net revenues	170,206	154,441	451,511	445,769
Income (loss) from operations	37,689	34,427	74,002	82,774
Well Intervention \| Intercompany Eliminations
Segment Reporting Information [Line Items]
Net revenues	(15,318)	(4,379)	(28,355)	(10,546)
Robotics
Segment Reporting Information [Line Items]
Net revenues	51,909	54,340	136,396	120,569
Robotics \| Reportable Segments
Segment Reporting Information [Line Items]
Net revenues	51,909	54,340	136,396	120,569
Income (loss) from operations	8,876	5,601	7,921	(12,818)
Robotics \| Intercompany Eliminations
Segment Reporting Information [Line Items]
Net revenues	(7,965)	(7,704)	(23,043)	(22,871)
Production Facilities
Segment Reporting Information [Line Items]
Net revenues	13,777	15,877	44,651	48,541
Production Facilities \| Reportable Segments
Segment Reporting Information [Line Items]
Net revenues	13,777	15,877	44,651	48,541
Income (loss) from operations	$ 3,050	$ 6,694	$ 11,907	$ 20,919

Business Segment Information - Intercompany Segment Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Net revenues	$ (212,609)	$ (212,575)	$ (581,160)	$ (581,462)
Well Intervention
Segment Reporting Information [Line Items]
Net revenues	(170,206)	(154,441)	(451,511)	(445,769)
Robotics
Segment Reporting Information [Line Items]
Net revenues	(51,909)	(54,340)	(136,396)	(120,569)
Intercompany Eliminations
Segment Reporting Information [Line Items]
Net revenues	23,283	12,083	51,398	33,417
Intercompany Eliminations \| Well Intervention
Segment Reporting Information [Line Items]
Net revenues	15,318	4,379	28,355	10,546
Intercompany Eliminations \| Well Intervention \| Droshky Prospect
Segment Reporting Information [Line Items]
Net revenues	10,600		15,900
Intercompany Eliminations \| Robotics
Segment Reporting Information [Line Items]
Net revenues	$ 7,965	$ 7,704	$ 23,043	$ 22,871

Business Segment Information - Total Assets By Reportable Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total assets	$ 2,613,511	$ 2,347,730
Corporate and Other
Segment Reporting Information [Line Items]
Total assets	137,956	162,645
Well Intervention \| Reportable Segments
Segment Reporting Information [Line Items]
Total assets	2,133,205	1,916,638
Robotics \| Reportable Segments
Segment Reporting Information [Line Items]
Total assets	183,125	147,602
Production Facilities \| Reportable Segments
Segment Reporting Information [Line Items]
Total assets	$ 159,225	$ 120,845

Asset Retirement Obligations - Asset Retirement Obligations (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Jan. 18, 2019
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at beginning of period	$ 0
Liability incurred during the period	53,294
Liability settled during the period	(15,944)
Accretion expense	1,770
Balance at end of period	39,120
Business Acquisition [Line Items]
ARO liability	$ 39,120
Droshky Prospect
Business Acquisition [Line Items]
ARO liability		$ 53,300
Other receivables		50,800
Acquired property		$ 2,500

Commitments And Contingencies And Other Matters - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Commitments And Contingencies [Line Items]
Total investment	$ 2,819,932	$ 2,785,778
Siem Helix 1 and Siem Helix 2
Commitments And Contingencies [Line Items]
Term of charter agreement	7 years
Q7000
Commitments And Contingencies [Line Items]
Total investment	$ 446,400
Q7000 \| Contract Signing
Commitments And Contingencies [Line Items]
Percentage of contract price	20.00%
Q7000 \| Due 2016
Commitments And Contingencies [Line Items]
Percentage of contract price	20.00%
Q7000 \| Due 2017
Commitments And Contingencies [Line Items]
Percentage of contract price	20.00%
Q7000 \| Due 2018
Commitments And Contingencies [Line Items]
Percentage of contract price	20.00%
Q7000 \| Vessel Delivery
Commitments And Contingencies [Line Items]
Percentage of contract price	20.00%
Q7000 \| Shipyard
Commitments And Contingencies [Line Items]
Total investment	$ 276,800

Statement Of Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Supplemental Cash Flow Information [Abstract]
Interest paid, net of interest capitalized	$ 2,404	$ 6,620
Income taxes paid	$ 7,535	$ 4,699

Statement Of Cash Flow Information - Narrative (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]
Non-cash capital additions	$ 14.0	$ 9.9

Fair Value Measurements - Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability	$ 2,615	$ 9,131
Foreign Exchange Contracts \| Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	1,089	6,211
Foreign Exchange Contracts \| Non-Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	1,634	3,984
Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	108	1,064
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability	0	0
Level 1 \| Foreign Exchange Contracts \| Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Level 1 \| Foreign Exchange Contracts \| Non-Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Level 1 \| Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability	2,615	9,131
Level 2 \| Foreign Exchange Contracts \| Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	1,089	6,211
Level 2 \| Foreign Exchange Contracts \| Non-Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	1,634	3,984
Level 2 \| Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	108	1,064
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability	0	0
Level 3 \| Foreign Exchange Contracts \| Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Level 3 \| Foreign Exchange Contracts \| Non-Hedging Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Level 3 \| Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 0	$ 0

Fair Value Measurements - Principal Amount And Estimated Fair Value Of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 28, 2019	Dec. 31, 2018	Mar. 20, 2018	Nov. 01, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	$ 445,949
Term Loan Maturing June 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	0		$ 33,693
Fair value	0		33,314
Term Loan Maturing December 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	34,125	$ 35,000	0
Fair value	33,698		0
Nordea Q5000 Loan Maturing April 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	98,214		125,000
Fair value	98,214		122,500
MARAD Debt Maturing February 2027
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	63,610		70,468
Fair value	68,972		74,406
Convertible Senior Notes Maturing May 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	125,000		125,000		$ 125,000
Fair value	126,094		114,298
Convertible Senior Notes Maturing September 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	125,000		125,000	$ 125,000
Fair value	146,719		114,688
Total Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	445,949		479,161
Fair value	$ 473,697		$ 459,206

Derivative Instruments And Hedging Activities - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Jun. 30, 2015
Derivative [Line Items]
Loss in Accumulated OCI to be re-classified within twelve months	$ 0.8
Interest Rate Swaps \| Nordea Q5000 Loan Maturing April 2020
Derivative [Line Items]
Notional amount		$ 187.5

Derivative Instruments And Hedging Activities - Derivative Instruments Designated As Hedging Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Asset derivative instruments designated as hedging instruments	$ 108	$ 1,064
Liability derivative instruments designated as hedging instruments	1,089	6,211
Other Current Assets \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Asset derivative instruments designated as hedging instruments	108	863
Other Assets, Net \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Asset derivative instruments designated as hedging instruments	0	201
Accrued Liabilities \| Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Liability derivative instruments designated as hedging instruments	1,089	5,857
Other Non-Current Liabilities \| Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Liability derivative instruments designated as hedging instruments	$ 0	$ 354

Derivative Instruments And Hedging Activities - Derivative Instruments Not Designated As Hedging Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Liability derivative instruments not designated as hedging instruments	$ 1,634	$ 3,984
Accrued Liabilities \| Foreign Exchange Contracts
Derivative [Line Items]
Liability derivative instruments not designated as hedging instruments	1,634	3,454
Other Non-Current Liabilities \| Foreign Exchange Contracts
Derivative [Line Items]
Liability derivative instruments not designated as hedging instruments	$ 0	$ 530

Derivative Instruments And Hedging Activities - Unrealized Gain (Loss) Recognized In OCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in OCI	$ (274)	$ (88)	$ (701)	$ 839
Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in OCI	(280)	(164)	(338)	(35)
Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in OCI	$ 6	$ 76	$ (363)	$ 874

Derivative Instruments And Hedging Activities - Gain (Loss) Reclassified From Accumulated OCI Into Earnings (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI into Earnings	$ (1,046)	$ (1,799)	$ (4,867)	$ (5,233)
Foreign Exchange Contracts \| Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI into Earnings	(1,197)	(1,957)	(5,460)	(5,538)
Interest Rate Swaps \| Net Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI into Earnings	$ 151	$ 158	$ 593	$ 305

Derivative Instruments And Hedging Activities - Impact Of Derivative Instruments Not Designated As Hedging Instruments On Condensed Consolidated Statements Of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Loss Recognized in Earnings	$ (371)	$ (83)	$ (413)	$ (26)
Foreign Exchange Contracts \| Other Expense, Net
Derivative Instruments, Gain (Loss) [Line Items]
Loss Recognized in Earnings	$ (371)	$ (83)	$ (413)	$ (26)