10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

Form 10-Q

þ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2015

or

¨ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from__________ to__________

Commission File Number 001-32936

HELIX ENERGY SOLUTIONS GROUP, INC.

(Exact name of registrant as specified in its charter)

Minnesota (State or other jurisdiction of incorporation or organization)	95–3409686 (I.R.S. Employer Identification No.)
3505 West Sam Houston Parkway North  Suite 400  Houston, Texas (Address of principal executive offices)	77043 (Zip Code)

(281) 618–0400 

(Registrant's telephone number, including area code)

NOT APPLICABLE

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. þYes ¨No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). þYes ¨No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer þ	Accelerated filer ¨	Non-accelerated filer ¨	Smaller reporting company ¨
		(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ¨Yes þNo

As of October 16, 2015, 106,137,010 shares of common stock were outstanding.

TABLE OF CONTENTS

PART I.	FINANCIAL INFORMATION	PAGE
Item 1.	Financial Statements:
	Condensed Consolidated Balance Sheets – September 30, 2015 (Unaudited) and December 31, 2014	3
	Condensed Consolidated Statements of Operations (Unaudited) – Three months ended September 30, 2015 and 2014	4
	Condensed Consolidated Statements of Operations (Unaudited) – Nine months ended September 30, 2015 and 2014	5
	Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) – Three and nine months ended September 30, 2015 and 2014	6
	Condensed Consolidated Statements of Cash Flows (Unaudited) – Nine months ended September 30, 2015 and 2014	7
	Notes to Condensed Consolidated Financial Statements (Unaudited)	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	27
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	43
Item 4.	Controls and Procedures	44
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	45
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	45
Item 6.	Exhibits	45
	Signatures	46
	Index to Exhibits	47

2

PART I.  FINANCIAL INFORMATION

Item 1.Financial Statements

HELIX ENERGY SOLUTIONS GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands)

	September 30, 2015			December 31, 2014
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	468,936		$	476,492
Accounts receivable:
Trade, net of allowance for uncollectible accounts of $7,775 and $4,735, respectively	114,285			104,724
Unbilled revenue	31,870			28,542
Costs in excess of billing	774			2,034
Current deferred tax assets	36,059			31,180
Other current assets	44,500			51,301
Total current assets	696,424			694,273
Property and equipment	2,515,691			2,241,444
Less accumulated depreciation	(581,368		)	(506,060		)
Property and equipment, net	1,934,323			1,735,384
Other assets:
Equity investments	143,481			149,623
Goodwill	61,648			62,146
Other assets, net	72,124			59,272
Total assets	$	2,908,000		$	2,700,698
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	75,781		$	83,403
Accrued liabilities	78,718			104,923
Income tax payable	—			9,143
Current maturities of long-term debt	71,640			28,144
Total current liabilities	226,139			225,613
Long-term debt	704,568			523,228
Deferred tax liabilities	257,596			260,275
Other non-current liabilities	46,412			38,108
Total liabilities	1,234,715			1,047,224
Commitments and contingencies
Shareholders’ equity:
Common stock, no par, 240,000 shares authorized, 106,116 and 105,586 shares issued, respectively	944,718			934,447
Retained earnings	808,166			781,279
Accumulated other comprehensive loss	(79,599		)	(62,252		)
Total shareholders’ equity	1,673,285			1,653,474
Total liabilities and shareholders’ equity	$	2,908,000		$	2,700,698

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

HELIX ENERGY SOLUTIONS GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(UNAUDITED)

(in thousands, except per share amounts)

	Three Months Ended September 30,
	2015			2014
Net revenues	$	182,462		$	340,837
Cost of sales	150,493			214,590
Gross profit	31,969			126,247
Selling, general and administrative expenses	(13,597		)	(19,916		)
Income from operations	18,372			106,331
Equity in earnings (losses) of investments	(251		)	508
Net interest expense	(8,713		)	(3,856		)
Other income (expense), net	(5		)	598
Other income – oil and gas	571			1,837
Income before income taxes	9,974			105,418
Income tax provision	94			29,832
Net income applicable to common shareholders	$	9,880		$	75,586
Earnings per share of common stock:
Basic	$	0.09		$	0.72
Diluted	$	0.09		$	0.71
Weighted average common shares outstanding:
Basic	105,438			104,997
Diluted	105,438			105,338

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

HELIX ENERGY SOLUTIONS GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(UNAUDITED)

(in thousands, except per share amounts)

	Nine Months Ended September 30,
	2015			2014
Net revenues	$	538,119		$	899,996
Cost of sales	446,995			588,765
Gross profit	91,124			311,231
Gain on disposition of assets, net	—			10,418
Selling, general and administrative expenses	(42,750		)	(69,614		)
Income from operations	48,374			252,035
Equity in earnings (losses) of investments	(553		)	709
Net interest expense	(18,018		)	(12,856		)
Other expense, net	(6,197		)	(229		)
Other income – oil and gas	4,396			15,709
Income before income taxes	28,002			255,368
Income tax provision	1,115			67,778
Net income, including noncontrolling interests	26,887			187,590
Less net income applicable to noncontrolling interests	—			(503		)
Net income applicable to common shareholders	$	26,887		$	187,087
Earnings per share of common stock:
Basic	$	0.25		$	1.77
Diluted	$	0.25		$	1.77
Weighted average common shares outstanding:
Basic	105,362			105,038
Diluted	105,362			105,374

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

HELIX ENERGY SOLUTIONS GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(UNAUDITED)

(in thousands)

	Three Months Ended September 30,
	2015			2014
Net income applicable to common shareholders	$	9,880		$	75,586
Other comprehensive loss, net of tax:
Unrealized loss on hedges arising during the period	(14,779		)	(9,209		)
Reclassification adjustments for loss included in net income	4,255			812
Income taxes on unrealized loss on hedges	3,772			2,939
Unrealized loss on hedges, net of tax	(6,752		)	(5,458		)
Foreign currency translation loss	(10,383		)	(15,706		)
Other comprehensive loss, net of tax	(17,135		)	(21,164		)
Comprehensive income (loss) applicable to common shareholders	$	(7,255	)	$	54,422

	Nine Months Ended September 30,
	2015			2014
Net income, including noncontrolling interests	$	26,887		$	187,590
Other comprehensive loss, net of tax:
Unrealized loss on hedges arising during the period	(23,144		)	(9,283		)
Reclassification adjustments for loss included in net income	9,186			2,080
Income taxes on unrealized loss on hedges	4,974			2,521
Unrealized loss on hedges, net of tax	(8,984		)	(4,682		)
Foreign currency translation loss	(8,363		)	(7,428		)
Other comprehensive loss, net of tax	(17,347		)	(12,110		)
Comprehensive income	9,540			175,480
Less comprehensive income applicable to noncontrolling interests	—			(503		)
Comprehensive income applicable to common shareholders	$	9,540		$	174,977

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

HELIX ENERGY SOLUTIONS GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(in thousands)

	Nine Months Ended September 30,
	2015			2014
Cash flows from operating activities:
Net income, including noncontrolling interests	$	26,887		$	187,590
Adjustments to reconcile net income, including noncontrolling interests, to net cash provided by operating activities:
Depreciation and amortization	86,333			81,274
Amortization of deferred financing costs	4,117			3,653
Stock-based compensation expense	7,941			5,711
Amortization of debt discount	4,409			4,149
Deferred income taxes	(2,403		)	24,728
Excess tax from stock-based compensation	98			(120		)
Gain on disposition of assets, net	—			(10,418		)
Unrealized loss and ineffectiveness on derivative contracts, net	2,222			69
Changes in operating assets and liabilities:
Accounts receivable, net	(13,326		)	(16,496		)
Other current assets	6,610			(19,388		)
Income tax payable, net of income tax receivable	(12,152		)	25,440
Accounts payable and accrued liabilities	(52,045		)	25,127
Other noncurrent, net	(19,164		)	(9,758		)
Net cash provided by operating activities	39,527			301,561
Cash flows from investing activities:
Capital expenditures	(280,523		)	(204,528		)
Distributions from equity investments, net	5,853			5,041
Proceeds from sale of assets	7,500			11,074
Acquisition of noncontrolling interests	—			(20,085		)
Net cash used in investing activities	(267,170		)	(208,498		)
Cash flows from financing activities:
Proceeds from Nordea Q5000 Loan	250,000			—
Repayment of Nordea Q5000 Loan	(8,929		)	—
Repayment of Term Loan	(15,000		)	(11,250		)
Repayment of MARAD Debt	(5,644		)	(5,376		)
Deferred financing costs	(1,611		)	(3,143		)
Distributions to noncontrolling interests	—			(1,018		)
Repurchases of common stock	(1,056		)	(8,538		)
Excess tax from stock-based compensation	(98		)	120
Proceeds from issuance of ESPP shares	3,484			3,223
Net cash provided by (used in) financing activities	221,146			(25,982		)
Effect of exchange rate changes on cash and cash equivalents	(1,059		)	1,248
Net increase (decrease) in cash and cash equivalents	(7,556		)	68,329
Cash and cash equivalents:
Balance, beginning of year	476,492			478,200
Balance, end of period	$	468,936		$	546,529

The accompanying notes are an integral part of these condensed consolidated financial statements.

7

HELIX ENERGY SOLUTIONS GROUP, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

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 wholly and majority owned subsidiaries (collectively, “Helix” or the “Company”). Unless the context indicates otherwise, the terms “we,” “us” and “our” in this report refer collectively to Helix and its wholly and majority owned 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.

The accompanying condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) and are consistent in all material respects with those applied in our 2014 Annual Report on Form 10-K (“2014 Form 10-K”). 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. The operating results for the three- and nine-month periods ended September 30, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. Our balance sheet as of December 31, 2014 included herein has been derived from the audited balance sheet as of December 31, 2014 included in our 2014 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 2014 Form 10-K.

We have made all adjustments (which were normal recurring adjustments) that we believe are necessary for a fair presentation of the condensed consolidated balance sheets, statements of operations, statements of comprehensive income (loss), and statements of cash flows, as applicable. Our operating results for the nine-month period ended September 30, 2015 included an out-of-period adjustment to correct an error related to a well intervention project performed in 2014 in which our revenues included certain income tax withholding payments made on our behalf and which now will have to be refunded to the counterparty. This adjustment affects our 2015 operating results by reducing our net revenues by $2.5 million and increasing our net loss by $1.7 million. The amounts were not deemed material with respect to prior year or the anticipated results and the trend of earnings for fiscal year 2015.

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.

In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” This ASU provides a single five-step approach to account for revenue arising from contracts with customers. The ASU requires an entity to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This revenue standard was originally effective prospectively for annual reporting periods beginning after December 15, 2016, including interim periods. In August 2015, the FASB issued ASU No. 2015-14 to defer the effective date of ASU No. 2014-09 by one year to December 15, 2017. Adoption as of the original effective date is permitted. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption through a cumulative adjustment. We are currently evaluating which transition approach to use and the potential impact the adoption of this standard may have on our consolidated financial statements.

8

In April 2015, the FASB issued ASU No. 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” This ASU requires that debt issuance costs related to a recognized debt liability be reported on the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The guidance is effective retrospectively beginning in the first quarter of fiscal 2017 and early adoption is permitted. We do not expect this guidance to materially affect our balance sheets as amounts will be reclassified from long-term assets to partial offsets to long-term debt. The guidance will not affect our statements of operations or statements of cash flows.

In July 2015, the FASB issued ASU No. 2015-11, “Simplifying the Measurement of Inventory.” This ASU requires inventory that is measured using first-in, first-out or average cost method to be recorded at the lower of cost and net realizable value. The guidance is effective prospectively for annual reporting periods beginning after December 15, 2016, including interim periods. Early adoption is permitted. We do not expect this guidance to materially affect our consolidated financial statements.

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 seek to provide services and methodologies that we believe are critical to developing offshore reservoirs and maximizing production economics. We provide services primarily in deepwater in the Gulf of Mexico, North Sea, Asia Pacific and West Africa regions, and expect to expand our operations offshore Brazil. Our “life of field” services are segregated into three reportable business segments: Well Intervention, Robotics and Production Facilities (Note 11).

Our Well Intervention segment includes our vessels and equipment used to perform well intervention services primarily in the Gulf of Mexico and North Sea regions. Our Well Intervention segment also includes intervention riser systems (“IRSs”) that may be available on a rental basis. Our well intervention vessels include the Q4000, the Helix 534, the Seawell, the Well Enhancer and the Skandi Constructor, which is a chartered vessel. Our well intervention fleet also includes the Q5000, a newbuild semi-submersible well intervention vessel that was delivered to us at the end of April 2015 and is currently working for a client in the Gulf of Mexico. We are currently constructing another well intervention vessel, the Q7000. We have also contracted to charter two newbuild monohull vessels, to be used in connection with our contracts to provide well intervention services offshore Brazil.

Our Robotics segment includes remotely operated vehicles (“ROVs”), trenchers and ROVDrills designed to complement offshore construction and well intervention services, and currently operates five chartered ROV and trencher support vessels including the Grand Canyon II, which was delivered to us in late April 2015.

Our Production Facilities segment includes the Helix Producer I vessel (“HP I”) as well as our equity investments in Deepwater Gateway, L.L.C. (“Deepwater Gateway”) and Independence Hub, LLC (“Independence Hub”) (Note 5). The Production Facilities segment also includes the Helix Fast Response System (“HFRS”), which provides certain operators access to our Q4000 and HP I vessels in the event of a well control incident in the Gulf of Mexico.

9

Note 3 — Details of Certain Accounts 

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

	September 30, 2015		December 31, 2014
Note receivable (1)	$	10,000	$	17,500
Other receivables	597		423
Prepaid insurance	7,968		6,582
Other prepaids	9,295		15,541
Spare parts inventory	5,022		1,857
Income tax receivable	3,477		—
Value added tax receivable	8,060		9,326
Other	81		72
Total other current assets	$	44,500	$	51,301

	September 30, 2015		December 31, 2014
Note receivable (1)	$	10,000	$	10,000
Deferred dry dock expenses, net	27,207		11,631
Deferred financing costs, net (Note 6)	21,182		23,399
Intangible assets with finite lives, net	736		696
Charter fee deposit (Note 12)	12,544		12,544
Other	455		1,002
Total other assets, net	$	72,124	$	59,272

(1) Relates to the remaining balance of the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014. The balance at December 31, 2014 included $7.5 million, which was paid in January 2015. Interest on the note is payable quarterly at a rate of 6% per annum. Under the terms of the note, the remaining $20 million principal balance is required to be paid with a $10 million payment on December 31, 2015 and December 31, 2016.

Accrued liabilities consist of the following (in thousands):

	September 30, 2015		December 31, 2014
Accrued payroll and related benefits	$	19,598	$	61,246
Current asset retirement obligations	553		575
Unearned revenue	17,879		11,461
Accrued interest	2,086		4,221
Derivative liability (Note 14)	22,790		13,222
Taxes payable excluding income tax payable	7,229		6,236
Other	8,583		7,962
Total accrued liabilities	$	78,718	$	104,923

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Note 4 — 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,
	2015		2014
Interest paid, net of interest capitalized	$	11,823	$	11,671
Income taxes paid	$	16,008	$	53,390

Our non-cash investing activities include accruals for property and equipment capital expenditures. These non-cash investing accruals totaled $20.4 million and $14.1 million as of September 30, 2015 and December 31, 2014, respectively. Additionally, our investing activities for the nine-month period ended September 30, 2014 included a $30 million non-cash transaction related to the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014 (Note 3).

Note 5 — Equity Investments

As of September 30, 2015, we had two investments that we account for using the equity method of accounting: Deepwater Gateway and Independence Hub, both of which are included in our Production Facilities segment.

Deepwater Gateway, L.L.C.  In June 2002, we, along with Enterprise Products Partners L.P. (“Enterprise”), formed Deepwater Gateway, each with a 50% interest, to design, construct, install, own and operate a tension leg platform production hub primarily for Anadarko Petroleum Corporation’s Marco Polofield in the Deepwater Gulf of Mexico. Our investment in Deepwater Gateway totaled $77.5 million and $80.9 million as of September 30, 2015 and December 31, 2014, respectively (including net capitalized interest of $1.2 million at September 30, 2015 and December 31, 2014, respectively).

Independence Hub, LLC.  In December 2004, we acquired a 20% interest in Independence Hub, then an affiliate of Enterprise. Independence Hub owns the “Independence Hub” platform located in Mississippi Canyon Block 920 in a water depth of 8,000 feet. Our investment in Independence Hub was $66.0 million and $68.8 million as of September 30, 2015 and December 31, 2014, respectively (including capitalized interest of $3.7 million and $3.9 million at September 30, 2015 and December 31, 2014, respectively).

In July 2015, Enterprise sold its offshore Gulf of Mexico pipelines and services business to Genesis Energy, L.P. for approximately $1.5 billion. Enterprise’s ownership interests in both Deepwater Gateway and Independence Hub were included in the sale.

We received the following distributions from our equity method investments (in thousands): 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Deepwater Gateway	$	1,200	$	500	$	3,900	$	4,250
Independence Hub	560		200		1,400		1,500
Total	$	1,760	$	700	$	5,300	$	5,750

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Note 6 —Long-Term Debt

Scheduled maturities of our long-term debt outstanding as of September 30, 2015 are as follows (in thousands):

	Term Loan			Nordea Q5000 Loan			MARAD Debt			2032 Notes (1)			Total
Less than one year	$	30,000		$	35,714		$	5,926		$	—		$	71,640
One to two years	30,000			35,715			6,222			—			71,937
Two to three years	202,500			35,714			6,532			—			244,746
Three to four years	—			35,714			6,858			—			42,572
Four to five years	—			98,214			7,200			—			105,414
Over five years	—			—			56,410			200,000			256,410
Total debt	262,500			241,071			89,148			200,000			792,719
Current maturities	(30,000		)	(35,714		)	(5,926		)	—			(71,640		)
Long-term debt, less current maturities	232,500			205,357			83,222			200,000			721,079
Unamortized debt discount (2)	—			—			—			(16,511		)	(16,511		)
Long-term debt	$	232,500		$	205,357		$	83,222		$	183,489		$	704,568

(1) Beginning in March 2018, the holders of our Convertible Senior Notes due 2032 may require us to repurchase these notes or we may at our option elect to repurchase these notes. The notes will mature in March 2032.

(2) Our Convertible Senior Notes due 2032 will increase to their face amount through accretion of non-cash interest charges through March 2018.

Below is a summary of certain components of our indebtedness:

Credit Agreement

In June 2013, we entered into a credit agreement (the “Credit Agreement”) with a group of lenders pursuant to which we borrowed $300 million under the Credit Agreement’s term loan (the “Term Loan”) and, subject to the terms of the Credit Agreement, may borrow additional amounts (the “Revolving Loans”) and/or obtain letters of credit under a revolving credit facility (the “Revolving Credit Facility”) up to $600 million. Subject to existing lender participation and/or the participation of new lenders, and subject to standard conditions precedent, we may obtain an increase of up to $200 million in aggregate commitments with respect to the Revolving Credit Facility, additional term loans or a combination thereof. At September 30, 2015, we had no borrowings under the $600 million Revolving Credit Facility and our available borrowing capacity under that facility, based on the leverage ratio covenant, totaled $243.4 million, net of $17.5 million of letters of credit issued.

The Term Loan and the Revolving Loans (together, the “Loans”) bear interest, at our election, in relation to either the base rate established by Bank of America N.A. or to a LIBOR rate, provided that all Swing Line Loans (as defined in the Credit Agreement) will be base rate loans.

12

The Loans or portions thereof bearing interest at the base rate currently bear interest at a per annum rate equal to the base rate plus a margin ranging from 1.00% to 3.00%. The Loans or portions thereof bearing interest at a LIBOR rate currently bear interest at the LIBOR rate selected by us plus a margin ranging from 2.00% to 4.00%. A letter of credit fee is payable by us equal to our applicable margin for LIBOR rate Loans multiplied by the daily amount available to be drawn under outstanding letters of credit. Margins on the Loans will vary in relation to the consolidated coverage ratio, as provided by the Credit Agreement. We currently also pay a fixed commitment fee of 0.50% on the unused portion of our Revolving Credit Facility. The Term Loan currently bears interest at the one-month LIBOR rate plus 2.50%. In September 2013, we entered into various interest rate swap contracts to fix the one-month LIBOR rate on $148.1 million of our borrowings under the Term Loan. The fixed LIBOR rates are between 74 and 75 basis points.

The Term Loan is repayable in scheduled principal installments of 5% in each of the initial two loan years ($15 million per year), and 10% in each of the remaining three loan years ($30 million per year), payable quarterly, with a balloon payment of $180 million at maturity. These installment amounts are subject to adjustment for any prepayments on the Term Loan. We may elect to prepay amounts outstanding under the Term Loan without premium or penalty, but may not reborrow any amounts prepaid. We may prepay amounts outstanding under the Revolving Loans without premium or penalty, and may reborrow any amounts paid up to the amount of the Revolving Credit Facility. The Loans mature on June 19, 2018. In certain circumstances, we will be required to prepay the Loans.

The Credit Agreement and the other documents entered into in connection with the Credit Agreement (together, the “Loan Documents”) include terms and conditions, including covenants, which we consider customary for this type of transaction. The covenants include restrictions on our and our subsidiaries’ ability to grant liens, incur indebtedness, make investments, merge or consolidate, sell or transfer assets, pay dividends and incur capital expenditures. In addition, the Credit Agreement obligates us to meet certain financial ratios, including the Consolidated Interest Coverage Ratio and the Consolidated Leverage Ratio (as defined in the Credit Agreement). In May 2015, we amended the Credit Agreement to revise the maximum permitted Consolidated Leverage Ratio as follows: 4.00 to 1.00 for the second quarter of 2015, 4.50 to 1.00 for the third quarter of 2015 through the fourth quarter of 2016, 4.00 to 1.00 for the first quarter of 2017, and 3.50 to 1.00 for the second quarter of 2017 and thereafter. Prior to the amendment, the leverage ratio was 3.50 to 1.00, which applied to all periods after January 1, 2014.

We have designated five of our foreign subsidiaries, and may designate any newly established foreign subsidiaries, as subsidiaries that are not generally subject to the covenants in the Credit Agreement (the “Unrestricted Subsidiaries”), provided we meet certain liquidity requirements, in which case EBITDA (net of cash distributions to the parent) of the Unrestricted Subsidiaries is not included in the calculations with respect to our financial covenants. Our obligations under the Credit Agreement are guaranteed by our wholly owned domestic subsidiaries (except Cal Dive I – Title XI, Inc.) and Canyon Offshore Limited, a wholly owned Scottish subsidiary. Our obligations under the Credit Agreement, and of the guarantors under their guaranty, are secured by most of our assets of the parent and our wholly owned domestic subsidiaries (except Cal Dive I – Title XI, Inc.) and Canyon Offshore Limited, plus pledges of up to two-thirds of the shares of certain foreign subsidiaries.

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Convertible Senior Notes Due 2032 

In March 2012, we completed a public offering and sale of $200 million in aggregate principal amount of Convertible Senior Notes due 2032 (the “2032 Notes”). The 2032 Notes bear interest at a rate of 3.25% per annum, and are payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2012. The 2032 Notes mature on March 15, 2032 unless earlier converted, redeemed or repurchased. The 2032 Notes are convertible in certain circumstances and during certain periods at an initial conversion rate of 39.9752 shares of common stock per $1,000 principal amount (which represents an initial conversion price of approximately $25.02 per share of common stock), subject to adjustment in certain circumstances as set forth in the Indenture governing the 2032 Notes. We have the right and the intention to settle any such future conversions in cash.

Prior to March 20, 2018, the 2032 Notes are not redeemable. On or after March 20, 2018, we, at our option, may redeem some or all of the 2032 Notes in cash, at any time upon at least 30 days’ notice, at a price equal to 100% of the principal amount plus accrued and unpaid interest (including contingent interest, if any) up to but excluding the redemption date. In addition, the holders of the 2032 Notes may require us to purchase in cash some or all of their 2032 Notes at a repurchase price equal to 100% of the principal amount of the 2032 Notes, plus accrued and unpaid interest (including contingent interest, if any) up to but excluding the applicable repurchase date, on March 15, 2018, March 15, 2022 and March 15, 2027, or, subject to specified exceptions, at any time prior to the 2032 Notes’ maturity following a fundamental change (as defined in the Indenture governing the 2032 Notes).

In connection with the issuance of the 2032 Notes, we recorded a discount of $35.4 million as required under existing accounting rules. To arrive at this discount amount, we estimated the fair value of the liability component of the 2032 Notes as of the date of their issuance (March 12, 2012) using an income approach. To determine this estimated fair value, we used borrowing rates of similar market transactions involving comparable liabilities at the time of issuance and an expected life of 6.0 years. In selecting the expected life, we selected the earliest date the holders could require us to repurchase all or a portion of the 2032 Notes (March 15, 2018). The effective interest rate for the 2032 Notes is 6.9% after considering the effect of the accretion of the related debt discount that represented the equity component of the 2032 Notes at their inception. We recorded $22.5 million related to the carrying amount of the equity component of the 2032 Notes.

MARAD Debt

This U.S. government guaranteed financing (the “MARAD Debt”) is pursuant to Title XI of the Merchant Marine Act of 1936 administered by the Maritime Administration, and was used to finance the construction of the Q4000. The MARAD Debt is payable in equal semi-annual installments beginning in August 2002 and matures in February 2027. The MARAD Debt is collateralized by the Q4000, is guaranteed 50% by us, and initially bore interest at a floating rate that approximated AAA Commercial Paper yields plus 20 basis points. As required by the MARAD Debt agreements, in September 2005, we fixed the interest rate on the debt through the issuance of a 4.93% fixed-rate note with the same maturity date.

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Nordea Credit Agreement

In September 2014, a wholly owned subsidiary incorporated in Luxembourg, Helix Q5000 Holdings S.à r.l. (“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 at the end of April 2015 at the time the Q5000 vessel was delivered. 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 nonrecourse to Helix.

The Nordea Q5000 Loan bears interest at a LIBOR rate plus a margin of 2.5%, with an undrawn fee of 0.875% prior to funding on April 30, 2015. The Nordea Q5000 Loan matures on April 30, 2020 and is repayable in scheduled principal installments of $8.9 million, payable quarterly, with a balloon payment of $80.4 million at maturity. Q5000 Holdings may elect to prepay amounts outstanding under the Nordea Q5000 Loan without premium or penalty, but may not reborrow any amounts prepaid. Installment amounts are subject to adjustment for any prepayments on this debt. In certain circumstances, Q5000 Holdings will be required to prepay the loan. In June 2015, we entered into various interest rate swap contracts to fix the one-month LIBOR rate on $187.5 million of our borrowings under the Nordea Q5000 Loan. The fixed LIBOR rates are between 149 and 152 basis points.

The Nordea Credit Agreement and related loan documents include terms and conditions, including covenants, that are considered 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. As of September 30, 2015, Q5000 Holdings was in compliance with these covenants.

Other 

In accordance with our Credit Agreement, the 2032 Notes, the MARAD Debt agreements, and the Nordea Credit Agreement, we are required to comply with certain covenants, including certain financial ratios such as a consolidated interest coverage ratio and consolidated leverage ratio, as well as the maintenance of minimum net worth, working capital and debt-to-equity requirements. As of September 30, 2015, we were in compliance with these covenants.

Unamortized deferred financing costs are included in “Other assets, net” in the accompanying condensed consolidated balance sheets and are amortized over the life of the respective debt agreements. The following table reflects the components of our deferred financing costs (in thousands): 

	September 30, 2015							December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Term Loan (matures June 2018)	$	3,638	$	(1,637	)	$	2,001	$	3,638	$	(1,091	)	$	2,547
Revolving Credit Facility (matures June 2018)	14,787		(6,137		)	8,650		13,275		(3,982		)	9,293
2032 Notes (mature March 2032)	3,759		(2,224		)	1,535		3,759		(1,763		)	1,996
MARAD Debt (matures February 2027)	12,200		(6,589		)	5,611		12,200		(6,223		)	5,977
Nordea Q5000 Loan (matures April 2020)	3,685		(300		)	3,385		3,586		—			3,586
Total deferred financing costs	$	38,069	$	(16,887	)	$	21,182	$	36,458	$	(13,059	)	$	23,399

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Interest expense	$	10,897		$	8,952		$	29,057		$	24,474
Interest income	(470		)	(2,741		)	(1,577		)	(4,113		)
Capitalized interest	(1,714		)	(2,355		)	(9,462		)	(7,505		)
Net interest expense	$	8,713		$	3,856		$	18,018		$	12,856

Note 7 — Income Taxes 

Our estimated annual effective tax rate, adjusted for discrete tax items, is applied to interim periods’ pretax earnings. We believe that our recorded assets and liabilities are reasonable; however, tax laws and regulations are subject to interpretation and tax litigation is inherently uncertain, and 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, 2015 were 0.9% and 4.0%, respectively. The effective tax rates for the three- and nine-month periods ended September 30, 2014 were 28.3% and 26.5%, respectively. The variance was primarily attributable to the earnings mix between our higher and lower tax rate jurisdictions.

Income taxes have been provided based on the U.S. statutory rate of 35% and at the local statutory rate for each foreign jurisdiction. 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,
	2015		2014		2015		2014
U.S. statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
Foreign provision	(35.3	)	(7.2	)	(32.9	)	(7.8	)
Other	1.2		0.5		1.9		(0.7	)
Effective rate	0.9	%	28.3	%	4.0	%	26.5	%

Note 8 —Accumulated Other Comprehensive Income (Loss) (“OCI”)

The components of Accumulated OCI are as follows (in thousands): 

	September 30, 2015			December 31, 2014
Cumulative foreign currency translation adjustment	$	(38,524	)	$	(30,161	)
Unrealized loss on hedges, net (1)	(41,075		)	(32,091		)
Accumulated other comprehensive loss	$	(79,599	)	$	(62,252	)

(1) Amounts relate to foreign currency hedges for the Grand Canyon, the Grand Canyon II and the Grand Canyon III charters as well as interest rate swap contracts for the Term Loan and the Nordea Q5000 Loan, and are net of deferred income taxes totaling $22.3 million at September 30, 2015 and $17.3 million at December 31, 2014 (Note 14).

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Note 9 — Earnings Per Share

We have shares of restricted stock issued and outstanding, which currently are unvested. Holders of such shares of unvested restricted stock are entitled to the same liquidation and dividend rights as the holders of our outstanding unrestricted common stock and the shares are thus considered participating securities. Under applicable accounting guidance, the undistributed earnings for each period are allocated based on the participation rights of both the common shareholders and 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. Further, we are required to compute earnings per share (“EPS”) amounts under the two class method in periods in which we have earnings from continuing operations.

The presentation of basic EPS amounts on the face of the accompanying condensed consolidated statements of operations is computed by dividing the net income applicable to our common shareholders by the weighted average shares of our outstanding common stock. The calculation of diluted EPS is similar to basic EPS, except that the denominator includes dilutive common stock equivalents and the income included in the numerator excludes the effects of the impact 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, 2015				Three Months Ended September 30, 2014
	Income			Shares	Income			Shares
Basic:
Net income applicable to common shareholders	$	9,880			$	75,586
Less: Undistributed income allocated to participating securities	(52		)		(392		)
Undistributed income allocated to common shares	$	9,828		105,438	$	75,194		104,997
Diluted:
Undistributed income allocated to common shares	$	9,828		105,438	$	75,194		104,997
Effect of dilutive securities:
Share-based awards other than participating securities	—			—	—			341
Undistributed income reallocated to participating securities	—			—	1			—
Net income applicable to common shareholders	$	9,828		105,438	$	75,195		105,338

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	Nine Months Ended September 30, 2015				Nine Months Ended September 30, 2014
	Income			Shares	Income			Shares
Basic:
Net income applicable to common shareholders	$	26,887			$	187,087
Less undistributed income allocated to participating securities	(149		)		(980		)
Undistributed income allocated to common shares	$	26,738		105,362	$	186,107		105,038
Diluted:
Undistributed income allocated to common shares	$	26,738		105,362	$	186,107		105,038
Effect of dilutive securities:
Share-based awards other than participating securities	—			—	—			336
Undistributed income reallocated to participating securities	—			—	3			—
Net income applicable to common shareholders	$	26,738		105,362	$	186,110		105,374

Approximately 8.0 million of potentially dilutive shares related to the 2032 Notes were excluded from the diluted EPS calculation for the three- and nine-month periods ended September 30, 2015 and 2014 because we have the right, intention and ability to settle any such future conversions in cash (Note 6).

Note 10 — Employee Benefit Plans

Long-Term Incentive Stock-Based Plan 

As of September 30, 2015, there were 6.2 million shares of our common stock available for issuance under our active long-term incentive stock-based plan, the 2005 Long-Term Incentive Plan, as amended and restated effective May 9, 2012 (the “2005 Incentive Plan”). During the nine-month period ended September 30, 2015, the following grants of share-based awards were made under the 2005 Incentive Plan: 

Date of Grant	Shares	Grant Date Fair Value Per Share		Vesting Period
January 2, 2015 (1)	289,163	$	21.70	33% per year over three years
January 2, 2015 (2)	289,163	$	25.06	100% on January 1, 2018
January 5, 2015 (3)	3,946	$	21.66	100% on January 1, 2017
January 12, 2015 (1)	3,866	$	19.40	33% per year over three years
January 12, 2015 (2)	3,866	$	25.06	100% on January 11, 2018
February 1, 2015 (1)	2,664	$	18.77	33% per year over three years
February 1, 2015 (2)	2,664	$	25.06	100% on January 31, 2018
April 1, 2015 (3)	6,476	$	14.96	100% on January 1, 2017
July 1, 2015 (3)	6,631	$	12.63	100% on January 1, 2017

(1) Reflects the grant of restricted stock to our executive officers and selected management employees.

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(2) Reflects the grant of performance share units (“PSUs”) to our executive officers and selected 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 awarded PSUs and the minimum amount being zero. The vested PSUs may be settled in either cash or shares of our common stock at the discretion of the Compensation Committee of our Board of Directors.

(3) Reflects the grant of restricted stock to certain members of our Board of Directors who have made an election to take their quarterly fees in stock in lieu of cash.

Compensation cost for restricted stock is recognized over its vesting period on a straight-line basis. For the three- and nine-month periods ended September 30, 2015, $1.5 million and $4.4 million, respectively, were recognized as stock-based compensation expense related to restricted stock. For the three- and nine-month periods ended September 30, 2014, $1.1 million and $3.6 million, respectively, were recognized as stock-based compensation expense related to restricted stock and restricted stock units.

The estimated fair value of the PSUs on grant date was determined using a Monte Carlo simulation model. Until December 2014, the PSUs were being treated as an equity award. Accordingly, compensation expense associated with the PSUs was fixed, as represented by the number of PSUs multiplied by their respective grant date fair value, and the fixed amount was amortized on a straight-line basis over the three-year vesting period. In connection with the vesting of the 2012 PSU awards that occurred in January 2015, the decision was made by the Compensation Committee of our Board of Directors to settle these PSUs with a cash payment of $4.5 million (rather than an equivalent number of shares of our common stock, which was the default provision of the PSU awards). Accordingly, PSUs are now accounted for as a liability plan and changes in fair value of the awards are recognized in earnings. To the extent the recognized fair value of the modified liability awards is less than the recognized compensation cost associated with the grant date fair value of the original equity awards, the higher amount is recorded in stock-based compensation expense. The amount of cumulative compensation expense recognized in excess of the fair value of the modified liability awards is recorded in equity. For the three-month period ended September 30, 2015, $0.6 million was recognized as stock-based compensation expense related to PSUs. For the nine-month period ended September 30, 2015, we recorded a net reduction of $0.3 million of previously recognized compensation cost to reflect the estimated fair value of unvested PSUs as of September 30, 2015. For the three- and nine-month periods ended September 30, 2014, $0.6 million and $1.6 million, respectively, were recognized as stock-based compensation expense related to PSUs. The liability balance for the PSU awards was $0.3 million at September 30, 2015 and $7.9 million at December 31, 2014.

Long-Term Incentive Cash Plans 

We have certain long-term incentive cash plans (the “LTI Cash Plans”) that provide long-term cash-based compensation to eligible employees. Cash awards historically have been both fixed sum amounts payable (for non-executive management only) as well as cash awards indexed to our common stock with the payment amount at each vesting date fluctuating based on the performance of our common stock (for both executive and non-executive management). Payment amounts under these awards are calculated based on the ratio of the average stock price during the applicable measurement period over the original base price determined by the Compensation Committee of our Board of Directors at the time of the award. Cash payments under these awards are made each year during the vesting period on the anniversary date of the award. Cash awards granted since 2012 have a vesting period of three years while those granted prior to 2012 have a vesting period of five years. The LTI Cash Plans are considered liability plans and as such are re-measured to fair value each reporting period with corresponding changes in the liability amount being reflected in our results of operations.

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The cash awards granted under the LTI Cash Plans to our executive officers and selected management employees totaled $8.9 million in 2014. No long-term incentive cash awards were granted in 2015. For the three- and nine-month periods ended September 30, 2015, we recorded reductions of $1.2 million and $3.7 million, respectively, of previously recognized compensation expense associated with the cash awards issued pursuant to the LTI Cash Plans, reflecting the effect the decrease in our stock price since December 31, 2014 had on the value of our liability plan. For the nine-month period ended September 30, 2014, total compensation expense associated with the cash awards issued pursuant to the LTI Cash Plans was $5.4 million. Overall, compensation expense recorded for the three-month period ended September 30, 2014 was immaterial reflecting the effect the decrease in our stock price at the end of September 30, 2014 had on the value of our liability plan. The liability balance for the cash awards issued under the LTI Cash Plans was $0.1 million at September 30, 2015 and $12.8 million at December 31, 2014.

Employee Stock Purchase Plan 

We also have an employee stock purchase plan (the “ESPP”). The ESPP has 1.5 million shares authorized for issuance, of which 0.9 million shares were available for issuance as of September 30, 2015. The total value of the ESPP awards is calculated using the component approach where each award is computed as the sum of 15% of a share of non-vested stock, a call option on 85% of a share of non-vested stock, and a put option on 15% of a share of non-vested stock. Share-based compensation expense with respect to the ESPP was $0.3 million and $0.9 million, respectively, for the three- and nine-month periods ended September 30, 2015. For the three- and nine-month periods ended September 30, 2014, share-based compensation expense with respect to the ESPP was $0.3 million and $0.7 million, respectively.

For more information regarding our employee benefit plans, including our long-term incentive stock-based and cash plans and our employee stock purchase plan, see Note 8 to our 2014 Form 10-K.

Note 11 — Business Segment Information 

We have three reportable business segments: Well Intervention, Robotics and Production Facilities. Our Well Intervention segment includes our vessels and equipment used to perform well intervention services primarily in the Gulf of Mexico and North Sea regions. Our well intervention vessels include the Q4000, the Q5000, the Helix 534, the Seawell, the Well Enhancer and the Skandi Constructor, which is a chartered vessel. Our well intervention segment also includes certain intervention riser systems that are available on a rental basis. Our Robotics segment includes ROVs, trenchers and ROVDrills designed to complement offshore construction and well intervention services, and currently operates five chartered ROV and trencher support vessels. The Production Facilities segment includes the HP I as well as our investments in Deepwater Gateway and Independence Hub that are accounted for under the equity method. The results of our previously reported Subsea Construction segment are immaterial and thus no longer meet the threshold to be separately reported as a business segment. These results are now aggregated within “Other” for all periods presented in this Quarterly Report on Form 10-Q. All material intercompany transactions between the segments have been eliminated.

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

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	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net revenues —
Well Intervention	$	94,895		$	205,139		$	284,621		$	546,057
Robotics	83,310			131,707			238,582			339,301
Production Facilities	19,133			24,184			57,811			71,373
Other	—			—			—			358
Intercompany elimination	(14,876		)	(20,193		)	(42,895		)	(57,093		)
Total	$	182,462		$	340,837		$	538,119		$	899,996
Income (loss) from operations —
Well Intervention	$	6,233		$	80,789		$	25,162		$	194,297
Robotics	14,329			28,397			28,089			60,415
Production Facilities	6,938			11,284			19,960			33,127
Corporate and other	(8,965		)	(14,242		)	(24,581		)	(34,754		)
Intercompany elimination	(163		)	103			(256		)	(1,050		)
Total	$	18,372		$	106,331		$	48,374		$	252,035
Equity in earnings (losses) of investments	$	(251	)	$	508		$	(553	)	$	709

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,
	2015		2014		2015		2014
Well Intervention	$	7,324	$	8,635	$	18,687	$	22,052
Robotics	7,552		11,558		24,208		35,041
Total	$	14,876	$	20,193	$	42,895	$	57,093

The following table reflects total assets by reportable segment (in thousands): 

	September 30, 2015		December 31, 2014
Well Intervention	$	1,757,962	$	1,470,349
Robotics	295,617		299,701
Production Facilities	437,839		459,427
Corporate and other	416,582		471,221
Total	$	2,908,000	$	2,700,698

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Note 12 — Commitments and Contingencies and Other Matters 

Commitments 

In February 2013, we contracted to charter the Grand Canyon II and the Grand Canyon III for use in our robotics operations. The terms of the charters are for five years from the respective delivery dates. We took delivery of the Grand Canyon II in late April 2015 and received a $4.7 million non-refundable payment from the shipyard that constructed the vessel related to the delayed delivery of the vessel. This payment will be amortized as a reduction in our cost of sales over the five-year charter for the vessel. The delivery of the Grand Canyon III has been extended until February 2016.

In September 2013, we executed a second contract with the same shipyard in Singapore that constructed the Q5000. This contract is for the construction of a newbuild semi-submersible well intervention vessel, the Q7000, which is to be built to North Sea standards. This $346.0 million shipyard contract represents the majority of the expected costs associated with the construction of the Q7000. Pursuant to the original terms of this contract, 20% of the contract price was paid upon the signing of the contract and the remaining 80% was to be paid upon the delivery of the vessel. Pursuant to an amendment we entered into with the shipyard in June 2015, the remaining 80% will now be paid in two installments, with 20% in June 2016 and 60% upon the delivery of the vessel. We agreed to pay the shipyard incremental costs of up to $14.5 million to extend the scheduled delivery of the Q7000 from mid-2016 to July 30, 2017. These costs are capitalizable as they are incurred during the construction of the vessel. We paid $7.3 million of these costs in July 2015 and the remaining costs will be paid upon the delivery of the vessel. At September 30, 2015, our total investment in the Q7000 was $108.9 million, including the $69.2 million paid to the shipyard upon signing the contract.

In February 2014, we entered into agreements with Petróleo Brasileiro S.A. (“Petrobras”) to provide well intervention services offshore Brazil. The initial term of the agreements with Petrobras is for four years with options to extend. In connection with the Petrobras agreements, we entered into charter agreements with Siem Offshore AS for two newbuild monohull vessels, the first of which is expected to be in service for Petrobras in 2016 and the second in late 2016 or early 2017. At September 30, 2015, our total investment in the topside equipment for the two vessels was $99.9 million. In November 2014, we paid a charter fee deposit of $12.5 million, which will be used to reduce our future charter payments.

In September 2015, we extended the charter of the Skandi Constructor through April 1, 2017 at reduced rates to be effective October 15, 2015.

Contingencies and Claims 

We believe that there are currently no contingencies which would have a material effect on our financial position, results of operations or cash flows.

Litigation 

On July 31, 2015, a purported stockholder, Parviz Izadjoo, filed a class action lawsuit styled Parviz Izadjoo v. Owen Kratz and Helix Energy Solutions Group, Inc. against the Company and Mr. Owen Kratz, our Chief Executive Officer, in the United States District Court for the Southern District of Texas on behalf of a putative class of all purchasers of shares of our common stock between October 21, 2014, and July 21, 2015, inclusive. The lawsuit asserts violations of Section 10(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and SEC Rule 10b-5 as to both us and Mr. Kratz, and Section 20(a) of the Exchange Act against Mr. Kratz based on alleged misrepresentations and omissions in SEC filings and other public disclosures regarding projections for 2015 dry docks of two of the Company’s vessels working in the Gulf of Mexico, which allegedly caused the price at which putative class members bought stock during the proposed class period to be artificially inflated. The complaint

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seeks, among other relief, undisclosed damages. The deadline to apply for appointment as lead plaintiff was September 29, 2015. A lead plaintiff has not yet been appointed in this case. The Court has set an initial conference on November 16, 2015. We believe this lawsuit to be without merit and intend to vigorously defend against it.

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 based on alleged negligence. In addition, from time to time we incur other claims, such as contract disputes, in the normal course of business.

Note 13 — 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 techniques 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, accounts receivable, accounts payable, long-term debt and various derivative instruments. The carrying amount of cash and cash equivalents, accounts receivable and accounts payable approximates fair value due to the short-term nature of these instruments. The following tables provide additional information relating to other financial instruments measured at fair value on a recurring basis (in thousands): 

	Fair Value Measurements at September 30, 2015 Using
	Level 1		Level 2 (1)		Level 3		Total		Valuation Technique
Liabilities:
Foreign exchange contracts	$	—	$	62,379	$	—	$	62,379	(c)
Interest rate swaps	—		3,171		—		3,171		(c)
Total liability	$	—	$	65,550	$	—	$	65,550

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	Fair Value Measurements at December 31, 2014 Using
	Level 1		Level 2 (1)		Level 3		Total		Valuation Technique
Assets:
Interest rate swaps	$	—	$	369	$	—	$	369	(c)
Liabilities:
Foreign exchange contracts	—		50,428		—		50,428		(c)
Interest rate swaps	—		561		—		561		(c)
Total net liability	$	—	$	50,620	$	—	$	50,620

(1) Unless otherwise indicated, the fair value of our Level 2 derivative instruments 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 and market volatility and liquidity based on market data. Our actual results may differ from our estimates, and these differences could be positive or negative. See Note 14 for further discussion on fair value of our derivative instruments.

The fair value of our long-term debt is as follows (in thousands): 

	September 30, 2015				December 31, 2014
	Carrying Value		Fair Value (2)		Carrying Value		Fair Value (2)
Term Loan (matures June 2018)	$	262,500	$	259,547	$	277,500	$	270,563
Nordea Q5000 Loan (matures April 2020)	241,071		236,852		—		—
MARAD Debt (matures February 2027)	89,148		98,036		94,792		104,830
2032 Notes (mature March 2032) (1)	200,000		166,250		200,000		222,900
Total debt	$	792,719	$	760,685	$	572,292	$	598,293

(1) Carrying amount excludes the related unamortized debt discount of $16.5 million at September 30, 2015 and $20.9 million at December 31, 2014.

(2) The estimated fair value of the 2032 Notes was determined using Level 1 inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt was estimated using Level 2 fair value inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt 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.

Note 14 — Derivative Instruments and Hedging Activities

Our operations are exposed to market risk associated with interest rates and foreign currency exchange rates. Our risk management activities involve the use of derivative financial instruments to hedge the impact of market risk exposure related to variable interest rates and foreign currency exchange rates. All derivatives are reflected in the accompanying condensed consolidated balance sheets at fair value.

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We engage solely in cash flow hedges. Hedges of cash flow exposure are entered into to hedge a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability. Changes in the fair value of derivatives that are designated as cash flow hedges are deferred to the extent that the hedges are effective. These fair value changes are recorded as a component of Accumulated OCI (a component of shareholders’ equity) until the hedged transactions occur and are recognized in earnings. The ineffective portion of changes in the fair value of cash flow hedges is recognized immediately in earnings. In addition, any change in the fair value of a derivative that does not qualify for hedge accounting is recorded in earnings in the period in which the change occurs.

For additional information regarding our accounting for derivatives, see Notes 2 and 15 to our 2014 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 September 2013, we entered into various interest rate swap contracts to fix the interest rate on $148.1 million of our Term Loan borrowings (Note 6). These contracts, which are settled monthly, began in October 2013 and extend through October 2016. Additionally, in June 2015 we entered into various interest rate swap contracts to fix the interest rate on $187.5 million of our Nordea Q5000 Loan borrowings (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 hedge accounting treatment. Changes in the fair value of interest rate swaps are deferred to the extent the swaps are effective. These changes are recorded as a component of Accumulated OCI until the anticipated interest is recognized as interest expense. The ineffective portion of the interest rate swaps, if any, is recognized immediately in earnings within the line titled “Net interest expense.” The amount of ineffectiveness associated with our interest rate swap contracts was immaterial for all periods presented.

Foreign Currency Exchange Rate Risk

Because we operate in various regions in 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 January 2013, we entered into foreign currency exchange contracts to hedge through September 2017 the foreign currency exposure associated with the Grand Canyon charter payments ($104.6 million) denominated in Norwegian kroner (NOK591.3 million). In February 2013, we entered into similar foreign currency exchange contracts to hedge our foreign currency exposure with respect to the Grand Canyon II and Grand Canyon III charter payments ($100.4 million and $98.8 million, respectively) denominated in Norwegian kroner (NOK594.7 million and NOK595.0 million, respectively), through July 2019 and February 2020, respectively.

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Quantitative Disclosures Relating to Derivative Instruments 

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

	September 30, 2015			December 31, 2014
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Asset Derivatives:
Interest rate swaps	Other assets, net	$	—	Other assets, net	$	369
		$	—		$	369
Liability Derivatives:
Foreign exchange contracts	Accrued liabilities	$	20,443	Accrued liabilities	$	12,661
Interest rate swaps	Accrued liabilities	2,347		Accrued liabilities	561
Foreign exchange contracts	Other non-current liabilities	41,936		Other non-current liabilities	37,767
Interest rate swaps	Other non-current liabilities	824		Other non-current liabilities	—
		$	65,550		$	50,989

For the three- and nine-month periods ended September 30, 2015, we recorded losses of $0.4 million and $3.6 million, respectively, in “Other expense, net” in the accompanying condensed consolidated statement of operations related to ineffectiveness associated with our foreign currency hedges with respect to the Grand Canyon III charter payments as a result of the deferral of the vessel’s delivery until February 2016. Ineffectiveness associated with our cash flow hedges was immaterial for the three- and nine-month periods ended September 30, 2014. The following tables present the impact that derivative instruments designated as cash flow hedges had on our Accumulated OCI (net of tax) and our condensed consolidated statements of operations (in thousands). We estimate that as of September 30, 2015, $13.4 million of losses in Accumulated OCI associated with our derivatives is expected to be reclassified into earnings within the next 12 months.

	Gain (Loss) Recognized in OCI on Derivatives, Net of Tax
	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Foreign exchange contracts	$	(5,777	)	$	(5,713	)	$	(7,136	)	$	(4,823	)
Interest rate swaps	(975		)	255			(1,848		)	141
	$	(6,752	)	$	(5,458	)	$	(8,984	)	$	(4,682	)

	Location of Loss Reclassified from Accumulated OCI into Earnings	Loss Reclassified from Accumulated OCI into Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2015			2014			2015			2014
Foreign exchange contracts	Cost of sales	$	(3,433	)	$	(215	)	$	(7,828	)	$	(646	)
Interest rate swaps	Net interest expense	(822		)	(597		)	(1,358		)	(1,434		)
		$	(4,255	)	$	(812	)	$	(9,186	)	$	(2,080	)

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Item 2.  Management’s Discussion and Analysis of Financial Condition andResults of Operations

FORWARD-LOOKING STATEMENTS AND ASSUMPTIONS

This Quarterly Report on Form 10-Q contains various statements that contain forward-looking information regarding Helix Energy Solutions Group, Inc. and represent our expectations and beliefs concerning future events. This forward-looking information is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995 as set forth in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act. All statements included herein or incorporated herein by reference that are predictive in nature, that depend upon or refer to future events or conditions, or that use terms and phrases such as “achieve,” “anticipate,” “believe,” “estimate,” “expect,” “forecast,” “plan,” “project,” “propose,” “strategy,” “predict,” “envision,” “hope,” “intend,” “will,” “continue,” “may,” “potential,” “should,” “could” and similar terms and phrases are forward-looking statements. Included in forward-looking statements are, among other things: 

• statements regarding our business strategy or any other business plans, forecasts or objectives, any or all of which are subject to change;

• statements regarding the construction, upgrades or acquisition of vessels or equipment and any anticipated costs related thereto, including the construction of our Q7000 vessel and the construction of two chartered vessels to be used in connection with our contracts to provide well intervention services offshore Brazil (Note 12);

• statements regarding projections of revenues, gross margin, expenses, earnings or losses, working capital, debt and liquidity, or other financial items;

• statements regarding our backlog and long-term contracts;

• statements regarding any financing transactions or arrangements, or ability to enter into such transactions;

• statements regarding anticipated legislative, governmental, regulatory, administrative or other public body actions, requirements, permits or decisions;

• statements regarding the collectability of our trade receivables;

• statements regarding anticipated developments, industry trends, performance or industry ranking;

• statements regarding general economic or political conditions, whether international, national or in the regional and local market areas in which we do business;

• statements regarding our ability to retain key members of our senior management and key employees;

• statements regarding the underlying assumptions related to any projection or forward-looking statement; and

• any other statements that relate to non-historical or future information.

Although we believe that the expectations reflected in these forward-looking statements are reasonable and are based on reasonable assumptions, they do involve risks, uncertainties and other factors that could cause actual results to be materially different from those in the forward-looking statements. These factors include, among other things: 

• impact of domestic and global economic conditions and the future impact of such conditions on the oil and gas industry and the demand for our services;

• impact of potential cancellation, deferral or modification of our work or contracts by our customers;

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• unexpected delays in the delivery or chartering of new vessels for our well intervention and robotics fleet, including the Q7000, the Grand Canyon III and the two newbuild chartered vessels to be used to perform contracted well intervention work offshore Brazil;

• unexpected future capital expenditures (including the amount and nature thereof);

• the effectiveness and timing of completion of our vessel upgrades and major maintenance items;

• the results of our continuing efforts to control costs and improve performance;

• the success of our risk management activities;

• the effects of competition;

• the impact of current and future laws and governmental regulations, including tax and accounting developments;

• the effect of adverse weather conditions and/or other risks associated with marine operations;

• the effectiveness of our current and future hedging activities;

• the availability (or lack thereof) of capital (including any financing) to fund our business strategy and/or operations and our ability to reduce certain capital commitments;

• the effects of our indebtedness;

• the potential impact of a loss of one or more key employees; and

• the impact of general, market, industry or business conditions.

Our actual results could differ materially from those anticipated in any forward-looking statements as a result of a variety of factors, including those described in Item 1A. “Risk Factors” in our 2014 Form 10-K. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these risk factors. Forward-looking statements are only as of the date they are made, and other than as required under the securities laws, we assume no obligation to update or revise these forward-looking statements or provide reasons why actual results may differ.

Executive Summary

Business Strategy

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 believe that focusing on these services will deliver favorable long-term financial returns. We are making strategic investments that expand our service capabilities or add capacity to existing services in our key operating regions. On our well intervention side, we took delivery of the Q5000 at the end of April 2015. Our well intervention fleet is expected to expand following the completion and delivery of a second newbuild semi-submersible vessel currently under construction, the Q7000, and the expected delivery of two newbuild monohull vessels, which we will charter in connection with the well intervention agreements that we entered into with Petrobras. On our robotics side, we took delivery of the Grand Canyon II in late April 2015. We will upgrade our robotics fleet by chartering the Grand Canyon III newbuild vessel while downsizing the fleet by returning two chartered vessels to their owners in 2016.

On January 5, 2015, Helix, OneSubsea LLC, OneSubsea B.V., Schlumberger Technology Corporation, Schlumberger B.V. and Schlumberger Oilfield Holdings Ltd. entered into a Strategic Alliance Agreement and related agreements for the parties’ strategic alliance to design, develop, manufacture, promote, market and sell on a global basis integrated equipment and services for subsea well intervention. The alliance is expected to leverage the parties’ capabilities to provide a unique, fully integrated offering to clients, combining marine support with well access and control technologies. In furtherance of the strategy of the contractual alliance, we and OneSubsea have jointly ordered a 15,000 working p.s.i. well access package to be delivered by July 2017 for a total cost of approximately $27.5 million, of which we are responsible for 50%.

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Economic Outlook and Industry Influences

Demand for our services is primarily influenced by the condition of the oil and gas industry, and in particular, the willingness of oil and gas companies to make capital expenditures for offshore exploration, drilling and production operations. The performance of our business is also largely dependent on the prevailing market prices for oil and natural gas, which are impacted by domestic and global economic conditions, hydrocarbon production and capacity, geopolitical issues, weather, and several other factors, including but not limited to: 

• worldwide economic activity, including available access to global capital and capital markets;

• supply and demand for oil and natural gas, especially in the United States, Europe, China and India;

• regional conflicts and economic and political conditions in the Middle East and other oil-producing regions;

• actions taken by the Organization of Petroleum Exporting Countries (“OPEC”);

• the availability and discovery rate of new oil and natural gas reserves in offshore areas;

• the exploration and production of shale oil and natural gas;

• the cost of offshore exploration for and production and transportation of oil and natural gas;

• the ability of oil and gas companies to generate funds or otherwise obtain external capital for exploration, development and production operations;

• the sale and expiration dates of offshore leases in the United States and overseas;

• technological advances affecting energy exploration production transportation and consumption;

• weather conditions;

• environmental and other governmental regulations; and

• domestic and international tax laws, regulations and policies.

Global prices for crude oil are roughly half of the amounts that were realized around mid-year 2014 while prices for natural gas remain relatively low. The significant decrease in oil prices is attributable to a global oversupply of oil, which reflects increased production in certain countries (primarily the United States). U.S. domestic oil production has nearly doubled over the past few years. Major oil producers, such as Saudi Arabia, which have seen a decline in their oil exports to the U.S. are increasingly competing with other oil exporters such as Canada, Iraq and Russia in other markets (e.g., Asia). The easing of sanctions on Iran is likely to result in additional crude oil supply to the global market. OPEC’s continued unwillingness to reduce its daily production quotas to support higher oil prices reflects a few of its member nations’ fear of losing market share. On the demand side, China’s equity market turmoil and recent currency devaluation suggests the economy of the world’s largest oil importer will be weaker than expected. Europe’s economy continues to suffer from sluggish growth. Greece’s debt crisis is far from over despite a third bailout deal in August 2015. The Federal Reserve’s recent decision not to raise benchmark interest rates may be a reflection of a weaker global economic outlook than previously anticipated. In light of the sharp decline in oil prices, many oil and gas companies have decided to terminate or not renew contracts for more than half of their contracted rigs and drastically cut investments in exploration and production.

We expect these challenging industry conditions to continue into 2016 and beyond if oil and gas prices fail to increase. Increased competition for limited offshore oil and gas capital projects has driven down rates that drilling rig contractors are charging for their services, which affects all offshore oil and gas services contractors, including us, and is also expected to affect utilization of our assets, and increasingly for 2016, our robotics assets. In addition, the current dynamic and uncertain macroeconomic conditions in some countries around the world, such as Brazil, may have direct and/or indirect impact on existing contracts and contracting opportunities. On the positive side, many oil and gas companies are increasingly focusing on optimizing production of their existing subsea wells. We believe that we have a competitive advantage in terms of performing well intervention services efficiently. Furthermore, we believe that when oil and gas companies begin to increase overall spending levels, it

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will likely be for production activities rather than for exploration projects. Our Well Intervention and Robotics operations are intended to service the life span of an oil and gas field as well as to provide abandonment services at the end of the life of a field as required by governmental regulations. Thus over the longer term, we believe that fundamentals for our business remain favorable as the need for prolongation of well life in oil and gas production is the primary driver of demand for our services.

In addition, we believe that we are well positioned for future recovery as well as sustaining potential prolongation of market conditions with less than robust demand for deepwater production based on the following factors: (1) the need to extend the life of subsea wells is significant to the commerciality of the wells as plug and abandonment costs are considered; (2) our services offer commercially viable alternatives for reducing the finding and development costs of reserves as compared to new drilling; and (3) in past cycles, well intervention and workover have been the first market niches to recover, and in a prolonged market downturn are important to the commercial viability of deepwater wells.

Helix Fast Response System

We developed the HFRS as a culmination of our experience as a responder in the Macondo well control and containment efforts. The HFRS centers on two of our vessels, the HP I and the Q4000, both of which played a key role in the Macondo well control and containment efforts and are currently operating in the Gulf of Mexico. In 2011, we signed an agreement with Clean Gulf Associates (“CGA”), a non-profit industry group, allowing, in exchange for a retainer fee, the HFRS to be named as a response resource in permit applications to federal and state agencies and making the HFRS available to certain CGA participants who executed utilization agreements with us that specified the day rates to be charged should the HFRS be deployed in connection with a well control incident. The original set of agreements expired on March 31, 2013, and we entered into a new set of substantially similar agreements effective April 1, 2013 with the operators who formed HWCG LLC, a Delaware limited liability company comprised of some of the original CGA members as well as other industry participants, to perform the same functions as CGA with respect to the HFRS. In March 2015, HWCG LLC exercised a one-year option to extend the agreement with us through March 31, 2018.

RESULTS OF OPERATIONS

We have three reportable business segments: Well Intervention, Robotics and Production Facilities. All material intercompany transactions between the segments have been eliminated in our condensed consolidated financial statements, including our consolidated results of operations.

We seek to provide services and methodologies that we believe are critical to developing offshore reservoirs and maximizing production economics. Our services cover the lifecycle of an offshore oil or gas field. We operate primarily in deepwater in the Gulf of Mexico, North Sea, Asia Pacific and West Africa regions, and intend to increase our operations offshore Brazil. In addition, our Robotics operations are often contracted for the development of renewable energy projects (wind farms). As of September 30, 2015, our consolidated backlog that is supported by written agreements or contracts totaled $1.8 billion, of which $118.4 million is expected to be performed over the remainder of 2015. The substantial majority of our backlog is associated with our Well Intervention business segment. As of September 30, 2015, our well intervention backlog was $1.7 billion, including $70.7 million expected to be performed over the remainder of 2015. Our five-year contract with BP to provide well intervention services with our Q5000 semi-submersible vessel and our four-year agreements with Petrobras to provide well intervention services offshore Brazil with two chartered newbuild monohull vessels, represent approximately 78% of our total backlog. Backlog contracts are cancelable sometimes without penalty. In addition, if there are cancellation fees, the amount of those fees can be substantially less than the rates we would have generated had we performed the contract. Accordingly, backlog is not necessarily a reliable indicator of total annual revenues for our services as contracts may be added, renegotiated, deferred, canceled and in many cases modified while in progress.

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Non-GAAP Financial Measures

A non-GAAP financial measure is generally defined by the SEC as a numerical measure of a company’s historical or future performance, financial position, or cash flows that includes or excludes amounts from the most directly comparable measure under U.S. GAAP. We measure our operating performance based on EBITDA, a non-GAAP financial measure that is commonly used but is not a recognized accounting term under GAAP. We use EBITDA to monitor and facilitate the internal evaluation of the performance of our business operations, to facilitate external comparison of our business results to those of others in our industry, to analyze and evaluate financial and strategic planning decisions regarding future investments and acquisitions, to plan and evaluate operating budgets, and in certain cases, to report our results to the holders of our debt as required by our debt covenants. We believe our measure of EBITDA provides useful information to the public regarding our ability to service debt and fund capital expenditures and may help our investors understand our operating performance and compare our results to other companies that have different financing, capital and tax structures.

We define EBITDA as net income plus income taxes, depreciation and amortization expense, and net interest expense and other. In the following reconciliation, we provide amounts as reflected in our accompanying condensed consolidated financial statements unless otherwise footnoted. This means that these amounts are recorded at 100% even if we do not own 100% of all of our subsidiaries. Accordingly, to arrive at our measure of Adjusted EBITDA, when applicable, we deduct the noncontrolling interests related to the adjustment components of EBITDA and the gain or loss on disposition of assets.

Other companies may calculate their measures of EBITDA and Adjusted EBITDA differently than we do, which may limit their usefulness as comparative measures. Because EBITDA is not a financial measure calculated in accordance with U.S. GAAP, it should not be considered in isolation or as a substitute for net income attributable to common shareholders or cash flows from operations, but used as a supplement to these GAAP financial measures. The reconciliation of our net income to EBITDA and Adjusted EBITDA is as follows (in thousands): 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Net income applicable to common shareholders	$	9,880	$	75,586	$	26,887	$	187,087
Adjustments:
Net income applicable to noncontrolling interests	—		—		—		503
Income tax provision	94		29,832		1,115		67,778
Net interest expense and other	8,718		3,258		24,215		13,085
Depreciation and amortization	32,805		28,421		86,333		81,274
EBITDA	51,497		137,097		138,550		349,727
Adjustments:
Noncontrolling interests	—		—		—		(661		)
Gain on disposition of assets, net	—		—		—		(10,418		)
ADJUSTED EBITDA	$	51,497	$	137,097	$	138,550	$	338,648

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Comparison of Three Months Ended September 30, 2015 and 2014

The following table details various financial and operational highlights for the periods presented (dollars in thousands): 

	Three Months Ended September 30,						Increase/ (Decrease)
	2015			2014
Net revenues —
Well Intervention	$	94,895		$	205,139		$	(110,244	)
Robotics	83,310			131,707			(48,397		)
Production Facilities	19,133			24,184			(5,051		)
Intercompany elimination	(14,876		)	(20,193		)	5,317
	$	182,462		$	340,837		$	(158,375	)
Gross profit —
Well Intervention	$	8,967		$	84,166		$	(75,199	)
Robotics	17,071			31,457			(14,386		)
Production Facilities	7,125			11,422			(4,297		)
Corporate and other	(1,031		)	(901		)	(130		)
Intercompany elimination	(163		)	103			(266		)
	$	31,969		$	126,247		$	(94,278	)
Gross margin —
Well Intervention	9%			41%
Robotics	20%			24%
Production Facilities	37%			47%
Total company	18%			37%
Number of vessels or ROV assets (1) / Utilization (2)
Well Intervention vessels	5/60%			5/97%
ROVs	60/59%			61/81%
Robotics vessels	5/87%			6/90%

(1) Represents number of vessels or ROV assets as of the end of the period excluding acquired vessels prior to their in-service dates, vessels taken out of service prior to their disposition and vessels jointly owned with a third party. The Seawell was excluded for the first two months of the third quarter of 2015 as it was out of service undergoing major capital upgrades.

(2) Average vessel utilization rate is calculated by dividing the total number of days the vessels or other assets generated revenues by the total number of calendar days in the applicable period. 

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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,				Increase/ (Decrease)
	2015		2014
Well Intervention	$	7,324	$	8,635	$	(1,311	)
Robotics	7,552		11,558		(4,006		)
	$	14,876	$	20,193	$	(5,317	)

Net Revenues.  Our total net revenues decreased by 46% for the three-month period ended September 30, 2015 as compared to the same period in 2014. The decreased revenues for the three-month period in 2015 reflect the continuing adverse impact of reduced opportunities for near term work and the acceptance of work at lower rates for some of our assets.

Our Well Intervention revenues decreased by 54% for the three-month period ended September 30, 2015 as compared to the same period in 2014 primarily reflecting decreased utilization of our in-service well intervention vessels and no utilization of the Seawell and the Helix 534. In the North Sea, the Seawell has been warmed stacked since September 2015 after completion of its life extension capital upgrades. The Well Enhancer worked 84 days during the third quarter of 2015 as compared to 90 days in the same period in 2014. The Skandi Constructor was fully utilized during both periods. In the Gulf of Mexico, the Q4000 worked 62 days during the third quarter of 2015 as compared to 82 days in the same period in 2014. The Helix 534 was idle during the entire third quarter of 2015 as compared to full utilization in the same period in 2014. The vessel went into scheduled regulatory dry dock in September 2015.

Robotics revenues decreased by 37% for the three-month period ended September 30, 2015 as compared to the same period in 2014. The decrease primarily reflects 197 fewer days of spot vessel utilization and lower utilization of our Robotics assets as some units have been affected by other industry participants laying up vessels or canceling work as a result of the oil and gas market downturn.

Our Production Facilities revenues decreased by 21% for the three-month period ended September 30, 2015 as compared to the same period in 2014, which reflects the decrease in our variable throughput fee as a result of both the decline in oil prices and reduced production from the Phoenix field.

Gross Profit.  Our total gross profit decreased by 75% for the three-month period ended September 30, 2015 as compared to the same period in 2014. The gross profit related to our Well Intervention segment decreased by 89% for the three-month period ended September 30, 2015 as compared to the same period in 2014 reflecting significantly reduced revenues as a result of the Seawell being out of service for the entire third quarter of 2015, the Helix 534 being in regulatory dry dock in September 2015, and the Q4000 and the Helix 534 being idle for considerable periods of time during the quarter due to lack of available projects.

The gross profit associated with our Robotics segment decreased by 46% for the three-month period ended September 30, 2015 as compared to the same period in 2014 primarily reflecting no spot vessel utilization and decreased utilization for our Robotics assets during the three-month period ended September 30, 2015.

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The gross profit related to our Production Facilities segment decreased by 38% for the three-month period ended September 30, 2015 as compared to the same period in 2014. The decrease primarily reflects the decrease in revenues associated with our variable throughput fee.

Selling, General and Administrative Expenses.  Our selling, general and administrative expenses decreased by $6.3 million for the three-month period ended September 30, 2015 as compared to the same period in 2014. The decrease was primarily attributable to a reduction in payroll related costs including costs associated with our variable performance-based incentive compensation programs (Note 10) and overhead cost saving measures including headcount reductions. Selling, general and administrative expenses for the three-month period ended September 30, 2014 included a $2.3 million credit for the net recovery of amounts previously drawn on a letter of credit associated with a completed international well abandonment project that were previously assessed as uncollectible in 2012.

Equity in Earnings (Losses) of Investments.  Equity in earnings (losses) of investments was $(0.3) million and $0.5 million for the three-month periods ended September 30, 2015 and 2014, respectively. The variance primarily reflects lower revenues for both Deepwater Gateway and Independence Hub as a result of lower production at the fields being processed at each facility.

Net Interest Expense.  Our net interest expense increased by $4.9 million for the three-month period ended September 30, 2015 as compared to the same period in 2014 primarily reflecting interest expense associated with the Nordea Q5000 Loan (Note 6) and decreases in interest income and capitalized interest. Interest income totaled $0.5 million for the three-month period ended September 30, 2015 as compared to $2.7 million for the same period in 2014. The amount of interest income for the third quarter of 2014 includes $2.1 million from an IRS income tax refund. Interest on debt used to finance capital projects is capitalized and thus reduces overall interest expense. Capitalized interest totaled $1.7 million for the third quarter of 2015 as compared to $2.4 million for the third quarter of 2014.

Other Income (Expense), Net.  Our other expense, net, was minimal for the three-month period ended September 30, 2015 as compared to other income, net, of $0.6 million for the same period in 2014. Included in these amounts were foreign currency transaction gains of $0.7 million and $0.6 million, respectively, in the comparable quarter-over-quarter periods. Also included in net other expense for the three-month period ended September 30, 2015 were $0.4 million of hedge ineffectiveness (Note 14) and $0.3 million of contract settlement amounts in excess of hedge ineffectiveness. Both amounts are associated with our foreign currency hedges with respect to the Grand Canyon III charter payments. Delivery of the vessel has been deferred until February 2016.

Other Income – Oil and Gas.  Our other income – oil and gas decreased by $1.3 million for the three-month period ended September 30, 2015 as compared to the same period in 2014. The decrease reflects declining oil prices and their effect on our overriding royalty income.

Income Tax Provision.  Income taxes reflect expenses of $0.1 million for the three-month period ended September 30, 2015 as compared to $29.8 million for the same period last year. The variance primarily reflects decreased profitability in the current year period. The effective tax rate of 0.9% for the three-month period ended September 30, 2015 was lower than the 28.3% effective tax rate for the same period in 2014 as a result of the earnings mix between our higher and lower tax rate jurisdictions.

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Comparison of Nine Months Ended September 30, 2015 and 2014

The following table details various financial and operational highlights for the periods presented (dollars in thousands): 

	Nine Months Ended September 30,						Increase/ (Decrease)
	2015			2014
Net revenues —
Well Intervention	$	284,621		$	546,057		$	(261,436	)
Robotics	238,582			339,301			(100,719		)
Production Facilities	57,811			71,373			(13,562		)
Other	—			358			(358		)
Intercompany elimination	(42,895		)	(57,093		)	14,198
	$	538,119		$	899,996		$	(361,877	)
Gross profit —
Well Intervention	$	34,769		$	205,498		$	(170,729	)
Robotics	39,181			75,230			(36,049		)
Production Facilities	20,472			33,583			(13,111		)
Corporate and other	(3,042		)	(2,030		)	(1,012		)
Intercompany elimination	(256		)	(1,050		)	794
	$	91,124		$	311,231		$	(220,107	)
Gross margin —
Well Intervention	12%			38%
Robotics	16%			22%
Production Facilities	35%			47%
Total company	17%			35%
Number of vessels or ROV assets (1) / Utilization (2)
Well Intervention vessels	5/63%			5/95%
ROVs	60/60%			61/79%
Robotics vessels	5/85%			6/87%

(1) Represents number of vessels or ROV assets as of the end of the period excluding acquired vessels prior to their in-service dates, vessels taken out of service prior to their disposition and vessels jointly owned with a third party. The Seawell was excluded from the numbers for the first eight months of 2015 as it was out of service undergoing major capital upgrades.

(2) Average vessel utilization rate is calculated by dividing the total number of days the vessels or other assets generated revenues by the total number of calendar days in the applicable period. 

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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): 

	Nine Months Ended September 30,				Increase/ (Decrease)
	2015		2014
Well Intervention	$	18,687	$	22,052	$	(3,365	)
Robotics	24,208		35,041		(10,833		)
	$	42,895	$	57,093	$	(14,198	)

Net Revenues.  Our total net revenues decreased by 40% for the nine-month period ended September 30, 2015 as compared to the same period in 2014. In general, decreased revenues for the nine-month period in 2015 reflect both the reduced opportunities for near term work and the acceptance of work with lower rates for some of our assets following the industry-wide reaction to the substantial downturn in the oil and natural gas market.

Our Well Intervention revenues decreased by 48% for the nine-month period ended September 30, 2015 as compared to the same period in 2014 primarily reflecting decreased utilization of our in-service well intervention vessels due to lack of work, dry docks for the Q4000 and the Helix 534, and the Seawell being out of service for the entire nine months ended September 30, 2015 undergoing certain capital upgrades intended to extend the useful life of the vessel and being warm stacked thereafter. In the North Sea, the Skandi Constructor was 60% utilized during the first nine months of 2015 primarily due to the vessel being idle for the majority of the first four months of 2015 as compared to being nearly fully utilized during the first nine months of 2014. The Well Enhancer was 96% utilized during the nine-month period ended September 30, 2015, while the vessel was 89% utilized during the same period in 2014 with 24 days being in regulatory dry dock in January 2014. In the Gulf of Mexico, we attempted to arrange replacement projects to fill the 150-day void in the Helix 534’s schedule caused by a contract cancellation (for which we received a termination fee of $11.6 million). We were successful in filling all but 26 days in the first quarter of 2015. However, the vessel was idle for the entire second and third quarters of 2015 with the exception of 50 days utilized during early second quarter. Some of these idle days are related to scheduled regulatory dry dock which commenced in September 2015. The vessel is planned for warm stacking after completion of its dry dock, which is expected in November 2015. The Q4000 was utilized for 170 days during the first nine months of 2015. Idle time for the Q4000 included 64 days in the second quarter of 2015 for its regularly scheduled regulatory dry dock, and some downtime attributable to intervention riser system mechanical issues in January 2015.

Robotics revenues decreased by 30% for the nine-month period ended September 30, 2015 as compared to the same period in 2014. The decrease primarily reflects lower utilization of our Robotics assets and 381 fewer days of spot vessel utilization as some units have been affected by other industry participants laying up vessels or canceling work as a result of the oil and gas market downturn. However, our chartered ROV and trencher support vessels maintained high utilization rates.

Our Production Facilities revenues decreased by 19% for the nine-month period ended September 30, 2015 as compared to the same period in 2014, which reflects the decrease in our variable throughput fee as a result of both the decline in oil prices and reduced production. The reduced production primarily reflects the Phoenix field being shut in for the majority of March 2015 for some development activities within the field and during which time the HP I underwent required maintenance. The Phoenix field recommenced production in late March 2015.

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Gross Profit.  Our total gross profit decreased by 71% for the nine-month period ended September 30, 2015 as compared to the same period in 2014. The gross profit related to our Well Intervention segment decreased by 83% for the nine-month period ended September 30, 2015 as compared to the same period in 2014 reflecting reduced revenues as a result of the Seawell, the Q4000 and the Helix 534 being in dry docks, and the Skandi Constructor and the Helix 534 being idle for considerable periods of time during the first nine months of 2015 due to lack of available projects.

The gross profit associated with our Robotics segment decreased by 48% for the nine-month period ended September 30, 2015 as compared to the same period in 2014 primarily reflecting decreased utilization for our Robotics assets and less spot work in 2015.

The gross profit related to our Production Facilities segment decreased by 39% for the nine-month period ended September 30, 2015 as compared to the same period in 2014. The decrease primarily reflects the decrease in revenues associated with our variable throughput fee.

Gain on Disposition of Assets, Net.  The $10.4 million net gain on disposition of assets for the nine-month period ended September 30, 2014 primarily reflects a $10.5 million gain associated with the sale of our Ingleside spoolbase in January 2014.

Selling, General and Administrative Expenses.  Our selling, general and administrative expenses decreased by $26.9 million for the nine-month period ended September 30, 2015 as compared to the same period in 2014. The decrease was primarily attributable to a reduction in payroll related costs including costs associated with our variable performance-based incentive compensation programs (Note 10) and overhead cost saving measures including headcount reductions. In addition, selling, general and administrative expenses included charges of $3.2 million and $5.2 million, respectively, in the comparable year-over-year periods, both of which were associated with the provision for uncertain collection of a portion of our trade receivables.

Equity in Earnings (Losses) of Investments.  Equity in earnings (losses) of investments was $(0.6) million and $0.7 million for the nine-month periods ended September 30, 2015 and 2014, respectively. The variance primarily reflects lower revenues for both Deepwater Gateway and Independence Hub as a result of lower production at the fields being processed at each facility.

Net Interest Expense.  Our net interest expense increased by $5.2 million for the nine-month period ended September 30, 2015 as compared to the same period in 2014 primarily reflecting an increase in interest expense and a decrease in interest income, partially offset by an increase in capitalized interest. The increase in interest expense was associated with the Nordea Q5000 Loan (Note 6). Interest income totaled $1.6 million for the first nine months of 2015 as compared to $4.1 million for the same period in 2014. The amount of interest income for the first nine months of 2014 includes $2.1 million from an IRS income tax refund. Interest on debt used to finance capital projects is capitalized and thus reduces overall interest expense. Capitalized interest totaled $9.5 million for the first nine months of 2015 as compared to $7.5 million for the same period in 2014.

Other Expense, Net.  We reported other expense, net, of $6.2 million for the nine-month period ended September 30, 2015 as compared to $0.2 million for the same period in 2014. These amounts primarily reflect foreign exchange fluctuations in our non-U.S. dollar functional currencies. We recorded foreign currency transaction losses of $2.2 million and $0.2 million, respectively, in the comparable year-over-year periods. Also included in net other expense for the nine-month period ended September 30, 2015 were losses of $4.0 million related to our foreign currency exchange contracts. Of those losses, $3.6 million was related to ineffectiveness associated with our foreign currency hedges with respect to the Grand Canyon III charter payments and $0.4 million was related to the contract settlement amounts in excess of the ineffectiveness that was recorded for our Grand Canyon II and Grand Canyon III hedges.

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Other Income – Oil and Gas.  Our other income – oil and gas decreased by $11.3 million for the nine-month period ended September 30, 2015 as compared to the same period in 2014. The decrease was primarily attributable to a $7.2 million insurance reimbursement in the first quarter of 2014 related to asset retirement work previously performed as well as the decrease in our overriding royalty interests. The reduction in the overriding royalty income is significantly affected by the decline in oil prices as well as the shut-in of the Phoenix field for the majority of March 2015 as previously discussed.

Income Tax Provision.  Income taxes reflect expenses of $1.1 million for the nine-month period ended September 30, 2015 as compared to $67.8 million for the same period last year. The variance primarily reflects decreased profitability in the current year period. The effective tax rate of 4.0% for the nine-month period ended September 30, 2015 was lower than the 26.5% effective tax rate for the same period in 2014 as a result of the earnings mix between our higher and lower tax rate jurisdictions.

LIQUIDITY AND CAPITAL RESOURCES

Overview 

The following table presents certain information useful in the analysis of our financial condition and liquidity (in thousands): 

	September 30, 2015		December 31, 2014
Net working capital	$	470,285	$	468,660
Long-term debt (1)	$	704,568	$	523,228
Liquidity (2)	$	712,286	$	1,060,092

(1) Long-term debt does not include the current maturities portion of our long-term debt as that amount is included in net working capital. It is also net of unamortized debt discount on the 2032 Notes. See Note 6 for information relating to our existing debt. 

(2) Liquidity, as defined by us, is equal to cash and cash equivalents plus available capacity under our Revolving Credit Facility, which capacity is reduced by letters of credit drawn against the facility. Our liquidity at September 30, 2015 included cash and cash equivalents of $468.9 million and $243.4 million of available borrowing capacity under our Revolving Credit Facility (Note 6). Our liquidity at December 31, 2014 included cash and cash equivalents of $476.5 million and $583.6 million of available borrowing capacity under our Revolving Credit Facility.

The carrying amount of our long-term debt, including current maturities, is as follows (in thousands): 

	September 30, 2015		December 31, 2014
Term Loan (matures June 2018)	$	262,500	$	277,500
Nordea Q5000 Loan (matures April 2020)	241,071		—
MARAD Debt (matures February 2027)	89,148		94,792
2032 Notes (mature March 2032) (1)	183,489		179,080
Total debt	$	776,208	$	551,372

(1) These amounts are net of the unamortized debt discount of $16.5 million at September 30, 2015 and $20.9 million at December 31, 2014. The 2032 Notes will increase to their $200 million face amount through accretion of non-cash interest charges through March 15, 2018, which is the first date on which the holders of the notes may require us to repurchase the notes.

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The following table provides summary data from our condensed consolidated statements of cash flows (in thousands): 

	Nine Months Ended September 30,
	2015			2014
Cash provided by (used in):
Operating activities	$	39,527		$	301,561
Investing activities	$	(267,170	)	$	(208,498	)
Financing activities	$	221,146		$	(25,982	)

Our current requirements for cash primarily reflect the need to fund capital expenditures for our current lines of business and to service our debt. Historically, we have funded our capital program with cash flows from operations, borrowings under credit facilities and use of project financing along with other debt and equity alternatives.

As a further response to the recent announcements regarding industry-wide reductions in capital spending, we remain even more focused on maintaining a strong balance sheet and adequate liquidity. Over the near term, we may seek to reduce, defer or cancel certain planned capital expenditures. We believe that internally generated cash flows, available borrowing capacity under our Revolving Credit Facility will be sufficient to fund our operations over at least the next 12 months.

In accordance with our Credit Agreement, the 2032 Notes, the MARAD Debt agreements, and the Nordea Credit Agreement, we are required to comply with certain covenants, including certain financial ratios such as a consolidated interest coverage ratio and consolidated leverage ratio, as well as the maintenance of minimum net worth, working capital and debt-to-equity requirements. Our Credit Agreement also contains provisions that limit our ability to incur certain types of additional indebtedness. These provisions effectively prohibit us from incurring any additional secured indebtedness or indebtedness guaranteed by us. The Credit Agreement does permit us to incur certain unsecured indebtedness, and also provides for our subsidiaries to incur project financing indebtedness (such as our MARAD Debt and our Nordea Credit Agreement indebtedness) secured by the underlying asset, provided that such indebtedness is not guaranteed by us. The Credit Agreement also permits our Unrestricted Subsidiaries to incur indebtedness provided that it is not guaranteed by us or any of our Restricted Subsidiaries. As of September 30, 2015 and December 31, 2014, we were in compliance with all of our debt covenants.

A prolonged period of weak economic activity may make it difficult to comply with our covenants and other restrictions in agreements governing our debt. Furthermore, during any period of sustained weak economic activity and reduced EBITDA, our ability to access the full available commitment of $600 million under our Revolving Credit Facility may be impacted. At September 30, 2015, our available borrowing capacity under our Revolving Credit Facility, based on the leverage ratio covenant, totaled $243.4 million, net of $17.5 million of letters of credit issued. We anticipate that our borrowing capacity under the Revolving Credit Facility will continue to decrease over the remainder of 2015 and through the first quarter of 2016. However, for the remainder of 2015, we have no plans or forecasted requirements to borrow under our Revolving Credit Facility other than for issuances of letters of credit. Our ability to comply with these covenants and other restrictions is affected by economic conditions and other events beyond our control. If we fail to comply with these covenants and other restrictions, such failure could lead to an event of default, the possible acceleration of our repayment of outstanding debt and the exercise of certain remedies by our lenders, including foreclosure against our collateral.

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Subject to the terms of the Credit Agreement, we may borrow and/or obtain letters of credit up to $600 million under our Revolving Credit Facility. Subject to existing lender participation and/or the participation of new lenders, and subject to standard conditions precedent, we may obtain an increase of up to $200 million in aggregate commitments with respect to the Revolving Credit Facility, additional term loans or a combination thereof. See Note 6 for additional information relating to our long-term debt, including more information regarding our Credit Agreement, including covenants and collateral.

The 2032 Notes can be converted to our common stock prior to their stated maturity upon certain triggering events specified in the Indenture governing the notes. Beginning in March 15, 2018, the holders of the 2032 Notes may require us to repurchase these notes or we may at our own option elect to repurchase them. To the extent we do not have cash on hand or long-term financing secured to cover the conversion, the 2032 Notes would be classified as current liabilities in our condensed consolidated balance sheet. No conversion triggers were met during the nine-month periods ended September 30, 2015 and 2014.

Operating Cash Flows 

Total cash flows from operating activities decreased by $262.0 million for the nine-month period ended September 30, 2015 as compared to the same period in 2014. This decrease primarily reflects decreases in income from operations and changes in working capital.

Investing Activities 

Capital expenditures have consisted principally of the purchase or construction of dynamically positioned vessels, improvements and modifications to existing assets, and investments in our production facilities. Significant sources (uses) of cash associated with investing activities are as follows (in thousands): 

	Nine Months Ended September 30,
	2015			2014
Capital expenditures:
Well Intervention	$	(269,246	)	$	(167,227	)
Robotics	(10,582		)	(36,287		)
Production Facilities	(863		)	(769		)
Other	168			(245		)
Distributions from equity investments, net (1)	5,853			5,041
Proceeds from sale of assets (2)	7,500			11,074
Acquisition of noncontrolling interests (3)	—			(20,085		)
Net cash used in investing activities	$	(267,170	)	$	(208,498	)

(1) Distributions from equity investments are net of undistributed equity earnings from our equity investments. Gross distributions from our equity investments for the nine-month periods ended September 30, 2015 and 2014 were $5.3 million and $5.8 million, respectively (Note 5).

(2) Primarily reflects cash received from the sale of our Ingleside spoolbase in January 2014.

(3) Relates to the acquisition in February 2014 of our former minority partner’s noncontrolling interests in the entity that owns the HP I.

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Capital expenditures associated with our business have primarily included payments associated with the construction of our Q5000 and Q7000 vessels (see below), payments in connection with the Seawell refit activities in 2015 and the upgrades and modifications of the Helix 534 in 2014, the investment in the topside well intervention equipment for the two newbuild monohull vessels that we expect to charter to perform our agreements with Petrobras (see below), and the acquisition of additional ROVs and trenchers for our robotics business.

In March 2012, we entered into a contract with a shipyard in Singapore for the construction of the Q5000. Pursuant to the terms of this contract, payments were made as a fixed percentage of the contract price, together with any variations, on contractually scheduled dates. At September 30, 2015, our total investment in the Q5000 was $490.9 million, including $386.5 million of scheduled payments made to the shipyard. The vessel was delivered in the second quarter of 2015 and is currently preparing for work in the Gulf of Mexico. The Q5000 will commence its five-year charter contract with BP on April 1, 2016 but may work for other industry participants prior to that date. In September 2014, we entered into the Nordea Credit Agreement to partially finance the construction of the Q5000 and other future capital projects (Note 6). The Nordea Q5000 Loan was funded at the time of the delivery of the Q5000.

In September 2013, we executed a second contract with the same shipyard in Singapore that constructed the Q5000. This contract provides for the construction of a newbuild semi-submersible well intervention vessel, the Q7000, which is to be built to North Sea standards. This $346.0 million shipyard contract represents the majority of the expected costs associated with the construction of the Q7000. Pursuant to the original terms of this contract, 20% of the contract price was paid upon the signing of the contract and the remaining 80% was to be paid upon the delivery of the vessel. In June 2015, we entered into an amendment with the shipyard to extend the scheduled delivery of the Q7000 from mid-2016 to July 30, 2017. Pursuant to this amendment, the remaining 80% will now be paid in two installments, with 20% in June 2016 and 60% upon the delivery of the vessel. We agreed to pay the shipyard incremental costs of up to $14.5 million. At September 30, 2015, our total investment in the Q7000 was $108.9 million, including $69.2 million paid to the shipyard upon signing the contract. We plan to incur approximately $4 million of costs related to the construction of the Q7000 over the remainder of 2015.

In February 2014, we entered into agreements with Petrobras to provide well intervention services offshore Brazil. The initial term of the agreements with Petrobras is for four years with options to extend. In connection with the Petrobras agreements, we entered into charter agreements with Siem Offshore AS for two newbuild monohull vessels, the first of which is expected to be in service for Petrobras in 2016 and the second in late 2016 or early 2017. Our total investment in the topside equipment for both vessels is expected to be approximately $260 million. We have invested $99.9 million as of September 30, 2015 and plan to invest approximately $9 million in the topside equipment over the remainder of 2015.

Outlook 

We anticipate that our capital expenditures for fiscal year 2015 will total approximately $365 million. This estimate may change based on various economic factors. We may seek to further reduce the level of our planned future capital expenditures given a prolonged economic downturn. We believe that our cash on hand, internally generated cash flows, and availability under our credit facility will provide the capital necessary to continue funding our 2015 initiatives.

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Contractual Obligations and Commercial Commitments 

The following table summarizes our contractual cash obligations as of September 30, 2015 and the scheduled years in which the obligations are contractually due (in thousands): 

	Total (1)		Less Than 1 Year		1-3 Years		3-5 Years		More Than 5 Years
2032 Notes (2)	$	200,000	$	—	$	—	$	—	$	200,000
Term Loan	262,500		30,000		232,500		—		—
Nordea Q5000 Loan	241,071		35,714		71,429		133,928		—
MARAD debt	89,148		5,926		12,754		14,058		56,410
Interest related to debt (3)	191,900		30,793		50,911		25,965		84,231
Property and equipment (4)	368,691		145,156		223,535		—		—
Operating leases (5)	938,983		150,953		306,566		243,576		237,888
Total cash obligations	$	2,292,293	$	398,542	$	897,695	$	417,527	$	578,529

(1) Excludes unsecured letters of credit outstanding at September 30, 2015 totaling $17.5 million. These letters of credit support various obligations, such as contractual obligations, customs duties, contract bidding and insurance activities.

(2) Notes mature in 2032. The 2032 Notes can be converted prior to their stated maturity if the closing price of our common stock for at least 20 days in the period of 30 consecutive trading days ending on the last trading day of the preceding fiscal quarter exceeds 130% of their issuance price on that 30^th trading day (i.e., $32.53 per share). At September 30, 2015, the conversion trigger was not met. The first date that the holders of these notes may require us to repurchase the notes is March 15, 2018. See Note 6 for additional information.

(3) Interest payment obligations were calculated using stated coupon rates for fixed rate debt and interest rates applicable at September 30, 2015 for variable rate debt.

(4) Primarily reflects the costs associated with our well intervention assets currently under construction, including our new semi-submersible well intervention vessel, the Q7000, and the topside equipment for the two newbuild monohull vessels that we plan to charter (Note 12).

(5) Operating leases include vessel charters and facility leases. At September 30, 2015, our vessel charter commitments totaled approximately $898.9 million, including three vessels that will not be delivered to us until 2016. The less than one year amount includes approximately $3.6 million of additional commitments to extend the delivery of the Grand Canyon III until February 2016. The Rem Installer’s charter ends in July 2016, at which time we intend to return the vessel to its owner. The Olympic Canyon’s charter ends in May 2016 and we intend to cold stack the vessel until the time we return the vessel to its owner.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Our discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements. We prepare these financial statements and related footnotes in conformity with accounting principles generally accepted in the United States. As such, we are required to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented. We base our estimates on historical experience, available information and various other assumptions we believe to be reasonable under the circumstances. These estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as our operating environment changes. For additional information regarding our critical accounting policies and estimates, please read our “Critical Accounting Policies and Estimates” as disclosed in our 2014 Form 10-K.

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Item 3.  Quantitative and Qualitative Disclosures About Market Risk

We are currently exposed to market risk in two areas: interest rates and foreign currency exchange rates.

Interest Rate Risk.  As of September 30, 2015, $503.6 million of our outstanding debt was subject to floating rates. The interest rate applicable to our variable rate debt may rise, thereby increasing our interest expense and related cash outlay. To reduce the impact of this market risk, in September 2013, we entered into various interest rate swap contracts to fix the interest rate on $148.1 million of our Term Loan debt. These swap contracts, which are settled monthly, began in October 2013 and extend through October 2016. Additionally, in June 2015 we entered into various interest rate swap contracts to fix the interest rate on $187.5 million of our Nordea Q5000 Loan debt. These swap contracts, which are settled monthly, began in June 2015 and extend through April 2020. The impact of interest rate risk is estimated using a hypothetical increase in interest rates by 100 basis points for our variable rate long-term debt that is not hedged. Based on this hypothetical assumption, we would have incurred an additional $1.5 million in interest expense for the nine-month period ended September 30, 2015.

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 (primarily with respect to our North Sea operations). As such, our earnings are subject to movements in foreign currency exchange rates when transactions are denominated in (i) currencies other than the U.S. dollar, which is our functional currency, or (ii) the functional currency of our subsidiaries, which is not necessarily the U.S. dollar. In order to mitigate the effects of exchange rate risk in areas outside the United States, we generally pay a portion of our expenses in local currencies. In addition, a substantial portion of our contracts provide for collections from customers in U.S. dollars. During the nine-month period ended September 30, 2015, we recognized losses of $2.2 million related to foreign currency transactions in “Other expense, net” in our condensed consolidated statement of operations.

We entered into various foreign currency exchange contracts to stabilize expected cash outflows related to certain vessel charters denominated in Norwegian kroners. In January 2013, we entered into foreign currency exchange contracts to hedge through September 2017 the foreign currency exposure associated with the Grand Canyon charter payments ($104.6 million) denominated in Norwegian kroner (NOK591.3 million). In February 2013, we entered into similar foreign currency exchange contracts to hedge our foreign currency exposure with respect to the Grand Canyon II and the Grand Canyon III charter payments ($100.4 million and $98.8 million, respectively) denominated in Norwegian kroner (NOK594.7 million and NOK595.0 million, respectively), through July 2019 and February 2020, respectively. These contracts currently qualify for hedge accounting treatment. For the nine-month period ended September 30, 2015, we recorded losses totaling $4.0 million as a component of “Other expense, net” in our condensed consolidated statement of operations. Of those losses, $3.6 million was related to ineffectiveness associated with our foreign currency hedges with respect to the Grand Canyon III charter payments and $0.4 million was related to the contract settlement amounts in excess of the ineffectiveness that was recorded for our Grand Canyon II and Grand Canyon III hedges.

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Item 4.Controls and Procedures

(a) Evaluation of disclosure controls and procedures. Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of September 30, 2015. Based on this evaluation, our principal executive officer and principal financial officer have concluded that our disclosure controls and procedures were effective as of September 30, 2015 to ensure that information that is required to be disclosed by us in the reports we file or submit under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms; and (ii) accumulated and communicated to our management, as appropriate, to allow timely decisions regarding required disclosure.

(b)Changes in internal control over financial reporting. There have been no changes in our internal control over financial reporting that occurred during the quarter ended September 30, 2015 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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Part II.  OTHER INFORMATION

Item 1.  Legal Proceedings 

See Part I, Item 1, Note 12 to the Condensed Consolidated Financial Statements, which is incorporated herein by reference.

Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds 

Issuer Purchases of Equity Securities

Period	(a) Total number of shares purchased	(b) Average price paid per share		(c) Total number of shares purchased as part of publicly announced program	(d) Maximum number of shares that may yet be purchased under the program (1)
July 1 to July 31, 2015	—	$	—	—	525,374
August 1 to August 31, 2015	—	—		—	525,374
September 1 to September 30, 2015	—	—		—	689,998
	—	$	—	—

(1) Under the terms of our stock repurchase program, the issuance of shares to members of our Board of Directors and to certain employees, including shares issued to our employees under the ESPP (Note 10), increases the amount of shares available for repurchase. For additional information regarding our stock repurchase program, see Note 10 to our 2014 Form 10-K.

Item 6.  Exhibits

The exhibits to this report are listed in the Exhibit Index on Page 47 hereof.

45

SIGNATURES 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			HELIX ENERGY SOLUTIONS GROUP, INC.  (Registrant)
Date:	October 21, 2015	By:	/s/ Owen Kratz
			Owen Kratz President and Chief Executive Officer  (Principal Executive Officer)
Date:	October 21, 2015	By:	/s/ Anthony Tripodo
			Anthony Tripodo Executive Vice President and Chief Financial Officer  (Principal Financial Officer)

46

INDEX TO EXHIBITS

OF

HELIX ENERGY SOLUTIONS GROUP, INC.

Exhibits	Description	Filed or Furnished Herewith or Incorporated by Reference from the Following Documents (Registration or File Number)
3.1	2005 Amended and Restated Articles of Incorporation, as amended, of Helix.	Exhibit 3.1 to the Current Report on Form 8-K filed on March 1, 2006 (000-22739)
3.2	Second Amended and Restated By-Laws of Helix, as amended.	Exhibit 3.1 to the Current Report on Form 8-K filed on September 28, 2006 (001-32936)
31.1	Certification Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934 by Owen Kratz, Chief Executive Officer.	Filed herewith
31.2	Certification Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934 by Anthony Tripodo, Chief Financial Officer.	Filed herewith
32.1	Certification of Helix’s Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes — Oxley Act of 2002.	Furnished herewith
101.INS	XBRL Instance Document.	Furnished herewith
101.SCH	XBRL Schema Document.	Furnished herewith
101.CAL	XBRL Calculation Linkbase Document.	Furnished herewith
101.PRE	XBRL Presentation Linkbase Document.	Furnished herewith
101.DEF	XBRL Definition Linkbase Document.	Furnished herewith
101.LAB	XBRL Label Linkbase Document.	Furnished herewith

47

EX-31.1

EXHIBIT 31.1

SECTION 302 CERTIFICATION

I, Owen Kratz, the President and Chief Executive Officer of Helix Energy Solutions Group, Inc., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Helix Energy Solutions Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  October 21, 2015

/s/ Owen Kratz

Owen Kratz

President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

SECTION 302 CERTIFICATION

I, Anthony Tripodo, the Executive Vice President and Chief Financial Officer of Helix Energy Solutions Group, Inc., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Helix Energy Solutions Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  October 21, 2015

/s/ Anthony Tripodo

Anthony Tripodo

Executive Vice President and

Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CEO AND CFO PURSUANT TO 18 U.S.C. SECTION 1350

(Adopted Pursuant to Section 906 of Sarbanes-Oxley Act of 2002)

In connection with the Quarterly Report of Helix Energy Solutions Group, Inc. (“Helix”) on Form 10-Q for the quarterly period ended September 30, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Owen Kratz, as President and Chief Executive Officer, and Anthony Tripodo, as Executive Vice President and Chief Financial Officer, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Helix.

Date: October 21, 2015

/s/ Owen Kratz

Owen Kratz

President and Chief Executive Officer

Date: October 21, 2015

/s/ Anthony Tripodo

Anthony Tripodo

Executive Vice President and

Chief Financial Officer

XML

Statement Of Cash Flow Information (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
Accruals for capital expenditures	$ 20.4		$ 14.1
Noncash consideration received		$ 30.0

XML

Employee Benefit Plans (Narrative) (Details) - USD ($) shares in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant	6.2		6.2
Compensation cost related to restricted shares	$ 1,500,000	$ 1,100,000	$ 4,400,000	$ 3,600,000
Deferred compensation arrangement with individual, distributions paid								$ 4,500,000
Deferred compensation arrangement, vesting period						3 years	5 years
Deferred compensation arrangement, cash awards granted, amount	0		0		$ 8,900,000
Deferred compensation arrangement, compensation expense				5,400,000
Deferred compensation cash-based arrangement, liability	$ 100,000		$ 100,000		$ 12,800,000
Percentage of share of non-vested stock considered as call option	85.00%		85.00%
Percentage of share of non-vested stock considered as put-option			15.00%
Share-based payment award, vesting period			3 years		3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense	$ 600,000	600,000		1,600,000
Deferred compensation share-based arrangement, liability	$ 300,000		$ 300,000		$ 7,900,000
Share-based payment award, vesting period			3 years
E S P P [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant	0.9		0.9
Allocated share-based compensation expense	$ 300,000	$ 300,000	$ 900,000	$ 700,000
Shares authorized for issuance	1.5		1.5
Scenario, Adjustment [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation arrangement, compensation expense	$ (1,200,000)		$ (3,700,000)
Scenario, Adjustment [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense			$ (300,000)

XML

Long-Term Debt (Net Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Debt Disclosure [Abstract]
Interest expense	$ 10,897	$ 8,952	$ 29,057	$ 24,474
Interest income	(470)	(2,741)	(1,577)	(4,113)
Capitalized interest	(1,714)	(2,355)	(9,462)	(7,505)
Net interest expense	$ 8,713	$ 3,856	$ 18,018	$ 12,856

XML

Employee Benefit Plans (Share-Based Awards Granted) (Details) - $ / shares		9 Months Ended	12 Months Ended
		Sep. 30, 2015	Dec. 31, 2014
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, vesting period		3 years	3 years
Performance Shares [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, vesting period		3 years
Maximum [Member] | Performance Shares [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Award percentage		200.00%
Minimum [Member] | Performance Shares [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Award percentage		0.00%
Grant Share Amount A [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[1]	Jan. 02, 2015
Share-based payment award, shares	[1]	289,163
Share-based payment award, market value per share	[1]	$ 21.70
Share-based payment award, vesting percentage	[1]	33.00%
Share-based payment award, vesting period	[1]	3 years
Grant Share Amount B [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[2]	Jan. 02, 2015
Share-based payment award, shares	[2]	289,163
Share-based payment award, market value per share	[2]	$ 25.06
Share-based payment award, vesting percentage	[2]	100.00%
Share-based payment award, vesting date	[2]	Jan. 01, 2018
Grant Share Amount C [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[3]	Jan. 05, 2015
Share-based payment award, shares	[3]	3,946
Share-based payment award, market value per share	[3]	$ 21.66
Share-based payment award, vesting percentage	[3]	100.00%
Share-based payment award, vesting date	[3]	Jan. 01, 2017
Grant Share Amount D [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[3]	Jan. 12, 2015
Share-based payment award, shares	[1]	3,866
Share-based payment award, market value per share	[1]	$ 19.40
Share-based payment award, vesting percentage	[1]	33.00%
Share-based payment award, vesting period	[1]	3 years
Grant Share Amount E [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[2]	Jan. 12, 2015
Share-based payment award, shares	[2]	3,866
Share-based payment award, market value per share	[2]	$ 25.06
Share-based payment award, vesting percentage	[2]	100.00%
Share-based payment award, vesting date	[2]	Jan. 11, 2018
Grant Share Amount F [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[1]	Feb. 01, 2015
Share-based payment award, shares	[1]	2,664
Share-based payment award, market value per share	[1]	$ 18.77
Share-based payment award, vesting percentage	[1]	33.00%
Share-based payment award, vesting period	[1]	3 years
Grant Share Amount G [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[2]	Feb. 01, 2015
Share-based payment award, shares	[2]	2,664
Share-based payment award, market value per share	[2]	$ 25.06
Share-based payment award, vesting percentage	[2]	100.00%
Share-based payment award, vesting date	[2]	Jan. 31, 2018
Grant Share Amount H [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[3]	Apr. 01, 2015
Share-based payment award, shares	[3]	6,476
Share-based payment award, market value per share	[3]	$ 14.96
Share-based payment award, vesting percentage	[3]	100.00%
Share-based payment award, vesting date	[3]	Jan. 01, 2017
Grant Share Amount I [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award, grant date	[3]	Jul. 01, 2015
Share-based payment award, shares	[3]	6,631
Share-based payment award, market value per share	[3]	$ 12.63
Share-based payment award, vesting percentage	[3]	100.00%
Share-based payment award, vesting date	[3]	Jan. 01, 2017

[1] Reflects the grant of restricted stock to our executive officers and selected management employees.

[2] Reflects the grant of performance share units (“PSUs”) to our executive officers and selected 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 awarded PSUs and the minimum amount being zero. The vested PSUs may be settled in either cash or shares of our common stock at the discretion of the Compensation Committee of our Board of Directors.

[3] Reflects the grant of restricted stock to certain members of our Board of Directors who have made an election to take their quarterly fees in stock in lieu of cash.

XML

Long-Term Debt (Maturities Of Long-Term Debt) (Details) - USD ($)	1 Months Ended	9 Months Ended
	Aug. 31, 2002	Sep. 30, 2015	Dec. 31, 2014	Mar. 31, 2012
Debt Instrument [Line Items]
Less than one year		$ 71,640,000
One to two years		71,937,000
Two to three years		244,746,000
Three to four years		42,572,000
Four to five years		105,414,000
Over five years		256,410,000
Total debt		792,719,000
Current maturities		(71,640,000)	$ (28,144,000)
Long-term Debt, Excluding Current Maturities, Gross		721,079,000
Long-term debt, less current maturities		704,568,000	523,228,000
Unamortized debt discount		(16,511,000)	(20,900,000)
Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Less than one year		30,000,000
One to two years		30,000,000
Two to three years		202,500,000
Three to four years		0
Total debt		262,500,000	277,500,000
Current maturities		(30,000,000)
Long-term Debt, Excluding Current Maturities, Gross		232,500,000
Long-term debt, less current maturities		232,500,000
Nordea Q5000 Loan [Member]
Debt Instrument [Line Items]
Less than one year		35,714,000
One to two years		35,715,000
Two to three years		35,714,000
Three to four years		35,714,000
Four to five years		98,214,000
Total debt		241,071,000	0
Current maturities		(35,714,000)
Long-term Debt, Excluding Current Maturities, Gross		205,357,000
Long-term debt, less current maturities		205,357,000
MARAD Debt [Member]
Debt Instrument [Line Items]
Less than one year		5,926,000
One to two years		6,222,000
Two to three years		6,532,000
Three to four years		6,858,000
Four to five years		7,200,000
Over five years		56,410,000
Total debt		89,148,000	$ 94,792,000
Current maturities		(5,926,000)
Long-term Debt, Excluding Current Maturities, Gross		83,222,000
Long-term debt, less current maturities		83,222,000
Debt instrument, maturity date	February 2027
Convertible Senior Notes 2032 [Member]
Debt Instrument [Line Items]
Over five years		200,000,000
Total debt		200,000,000		$ 200,000,000
Long-term Debt, Excluding Current Maturities, Gross		200,000,000
Long-term debt, less current maturities		183,489,000
Unamortized debt discount		$ (16,511,000)		$ (35,400,000)
Debt instrument, maturity date		March 2032

XML

Basis Of Presentation And New Accounting Standards (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reduction to net revenue	$ (182,462)	$ (340,837)	$ (538,119)	$ (899,996)
Increase to net loss	$ (9,880)	$ (75,586)	(26,887)	$ (187,087)
Scenario, Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reduction to net revenue			2,500
Increase to net loss			$ 1,700

XML

Business Segment Information (Summary Of Financial Data By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Net revenues	$ 182,462	$ 340,837	$ 538,119	$ 899,996
Income (loss) from operations	18,372	106,331	48,374	252,035
Equity in earnings (losses) of investments	(251)	508	(553)	709
Intercompany Elimination [Member]
Segment Reporting Information [Line Items]
Net revenues	(14,876)	(20,193)	(42,895)	(57,093)
Income (loss) from operations	(163)	103	(256)	(1,050)
Well Intervention [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	94,895	205,139	284,621	546,057
Income (loss) from operations	6,233	80,789	25,162	194,297
Well Intervention [Member] | Intercompany Elimination [Member]
Segment Reporting Information [Line Items]
Net revenues	(7,324)	(8,635)	(18,687)	(22,052)
Robotics [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	83,310	131,707	238,582	339,301
Income (loss) from operations	14,329	28,397	28,089	60,415
Robotics [Member] | Intercompany Elimination [Member]
Segment Reporting Information [Line Items]
Net revenues	(7,552)	(11,558)	(24,208)	(35,041)
Production Facilities [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	19,133	24,184	57,811	71,373
Income (loss) from operations	6,938	11,284	19,960	33,127
Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	0	0	0	358
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	$ (8,965)	$ (14,242)	$ (24,581)	$ (34,754)

XML

Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Maturities Of Long-Term Debt

Scheduled maturities of our long-term debt outstanding as of September 30, 2015 are as follows (in thousands):

	Term Loan			Nordea Q5000 Loan			MARAD Debt			2032 Notes (1)			Total
Less than one year	$	30,000		$	35,714		$	5,926		$	—		$	71,640
One to two years	30,000			35,715			6,222			—			71,937
Two to three years	202,500			35,714			6,532			—			244,746
Three to four years	—			35,714			6,858			—			42,572
Four to five years	—			98,214			7,200			—			105,414
Over five years	—			—			56,410			200,000			256,410
Total debt	262,500			241,071			89,148			200,000			792,719
Current maturities	(30,000		)	(35,714		)	(5,926		)	—			(71,640		)
Long-term debt, less current maturities	232,500			205,357			83,222			200,000			721,079
Unamortized debt discount (2)	—			—			—			(16,511		)	(16,511		)
Long-term debt	$	232,500		$	205,357		$	83,222		$	183,489		$	704,568

(1) Beginning in March 2018, the holders of our Convertible Senior Notes due 2032 may require us to repurchase these notes or we may at our option elect to repurchase these notes. The notes will mature in March 2032.

(2) Our Convertible Senior Notes due 2032 will increase to their face amount through accretion of non-cash interest charges through March 2018.

Deferred Financing Costs

The following table reflects the components of our deferred financing costs (in thousands): 

	September 30, 2015							December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Term Loan (matures June 2018)	$	3,638	$	(1,637	)	$	2,001	$	3,638	$	(1,091	)	$	2,547
Revolving Credit Facility (matures June 2018)	14,787		(6,137		)	8,650		13,275		(3,982		)	9,293
2032 Notes (mature March 2032)	3,759		(2,224		)	1,535		3,759		(1,763		)	1,996
MARAD Debt (matures February 2027)	12,200		(6,589		)	5,611		12,200		(6,223		)	5,977
Nordea Q5000 Loan (matures April 2020)	3,685		(300		)	3,385		3,586		—			3,586
Total deferred financing costs	$	38,069	$	(16,887	)	$	21,182	$	36,458	$	(13,059	)	$	23,399

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,
	2015			2014			2015			2014
Interest expense	$	10,897		$	8,952		$	29,057		$	24,474
Interest income	(470		)	(2,741		)	(1,577		)	(4,113		)
Capitalized interest	(1,714		)	(2,355		)	(9,462		)	(7,505		)
Net interest expense	$	8,713		$	3,856		$	18,018		$	12,856

XML

Income Taxes (Effective Income Tax Rate Reconciliation) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. statutory rate	35.00%	35.00%	35.00%	35.00%
Foreign provision	(35.30%)	(7.20%)	(32.90%)	(7.80%)
Other	1.20%	0.50%	1.90%	(0.70%)
Effective tax rate	0.90%	28.30%	4.00%	26.50%

XML

Long-Term Debt (Credit Agreement) (Details)	1 Months Ended		3 Months Ended				18 Months Ended
	Jan. 31, 2014	Jun. 30, 2013 USD ($)	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2015 USD ($)	Jun. 30, 2015	Dec. 31, 2016	Sep. 30, 2013 USD ($)
Debt Instrument [Line Items]
Amended leverage ratio	3.5					4
Scenario, Forecast [Member]
Debt Instrument [Line Items]
Amended leverage ratio			3.5	4			4.5
Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Original borrowing capacity		$ 300,000,000
Debt instrument, periodic payment terms, balloon payment to be paid		$ 180,000,000
Debt instrument, maturity date		Jun. 19, 2018
Term Loan Maturing June 2018 [Member] | Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Derivative, notional amount								$ 148,100,000
Derivative, lower range of basis spread on variable rate								0.74%
Derivative, higher range of basis spread on variable rate								0.75%
Term Loan Maturing June 2018 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					2.50%
Revolving Credit Facility Maturing June 2018 [Member]
Debt Instrument [Line Items]
Original borrowing capacity		$ 600,000,000
Line of credit facility, maximum additional commitments		$ 200,000,000
Revolving credit facility available capacity					$ 243,400,000
Unsecured letters of credit					$ 17,500,000
Commitment fee percentage					0.50%
Minimum [Member] | Term Loan Maturing June 2018 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					2.00%
Minimum [Member] | Term Loan Maturing June 2018 [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					1.00%
Maximum [Member] | Term Loan Maturing June 2018 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					4.00%
Maximum [Member] | Term Loan Maturing June 2018 [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					3.00%
Years One and Two | Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, periodic payment, principal, percentage		5.00%
Debt instrument, periodic payment, principal		$ 15,000,000
Years Three Through Five [Member] | Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, periodic payment, principal, percentage		10.00%
Debt instrument, periodic payment, principal		$ 30,000,000

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Details Of Certain Accounts (Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued payroll and related benefits	$ 19,598	$ 61,246
Current asset retirement obligations	553	575
Unearned revenue	17,879	11,461
Accrued interest	2,086	4,221
Derivative liability (Note 14)	22,790	13,222
Taxes payable excluding income tax payable	7,229	6,236
Other	8,583	7,962
Total accrued liabilities	$ 78,718	$ 104,923

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Earnings Per Share (Narrative) (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Convertible Senior Notes 2032 [Member]
Debt Instrument [Line Items]
Antidilutive securities	8.0	8.0	8.0	8.0

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Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability		$ 65,550	$ 50,620
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability		0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability	[1]	65,550	50,620
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total net liability		0	0
Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			369
Interest Rate Swaps [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Interest Rate Swaps [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	[1]		369
Interest Rate Swaps [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Foreign Currency Forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		62,379	50,428
Foreign Currency Forwards [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		0	0
Foreign Currency Forwards [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	[1]	62,379	50,428
Foreign Currency Forwards [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		0	0
Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		3,171	561
Interest Rate Swaps [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		0	0
Interest Rate Swaps [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	[1]	3,171	561
Interest Rate Swaps [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		$ 0	$ 0

[1] Unless otherwise indicated, the fair value of our Level 2 derivative instruments 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 and market volatility and liquidity based on market data. Our actual results may differ from our estimates, and these differences could be positive or negative. See Note 14 for further discussion on fair value of our derivative instruments.

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Long-Term Debt (Deferred Financing Costs) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Gross carrying amount	$ 3,638	$ 3,638
Accumulated amortization	(1,637)	(1,091)
Net	2,001	2,547
Revolving Credit Facility Maturing June 2018 [Member]
Debt Instrument [Line Items]
Gross carrying amount	14,787	13,275
Accumulated amortization	(6,137)	(3,982)
Net	8,650	9,293
Convertible Senior Notes 2032 [Member]
Debt Instrument [Line Items]
Gross carrying amount	3,759	3,759
Accumulated amortization	(2,224)	(1,763)
Net	1,535	1,996
MARAD Debt [Member]
Debt Instrument [Line Items]
Gross carrying amount	12,200	12,200
Accumulated amortization	(6,589)	(6,223)
Net	5,611	5,977
Nordea Q5000 Loan [Member]
Debt Instrument [Line Items]
Gross carrying amount	3,685	3,586
Accumulated amortization	(300)
Net	3,385	3,586
Debt [Member]
Debt Instrument [Line Items]
Gross carrying amount	38,069	36,458
Accumulated amortization	(16,887)	(13,059)
Net	$ 21,182	$ 23,399

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Details Of Certain Accounts

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Details Of Certain Accounts

Details of Certain Accounts 

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

	September 30, 2015		December 31, 2014
Note receivable (1)	$	10,000	$	17,500
Other receivables	597		423
Prepaid insurance	7,968		6,582
Other prepaids	9,295		15,541
Spare parts inventory	5,022		1,857
Income tax receivable	3,477		—
Value added tax receivable	8,060		9,326
Other	81		72
Total other current assets	$	44,500	$	51,301

	September 30, 2015		December 31, 2014
Note receivable (1)	$	10,000	$	10,000
Deferred dry dock expenses, net	27,207		11,631
Deferred financing costs, net (Note 6)	21,182		23,399
Intangible assets with finite lives, net	736		696
Charter fee deposit (Note 12)	12,544		12,544
Other	455		1,002
Total other assets, net	$	72,124	$	59,272

(1) Relates to the remaining balance of the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014. The balance at December 31, 2014 included $7.5 million, which was paid in January 2015. Interest on the note is payable quarterly at a rate of 6% per annum. Under the terms of the note, the remaining $20 million principal balance is required to be paid with a $10 million payment on December 31, 2015 and December 31, 2016.

Accrued liabilities consist of the following (in thousands):

	September 30, 2015		December 31, 2014
Accrued payroll and related benefits	$	19,598	$	61,246
Current asset retirement obligations	553		575
Unearned revenue	17,879		11,461
Accrued interest	2,086		4,221
Derivative liability (Note 14)	22,790		13,222
Taxes payable excluding income tax payable	7,229		6,236
Other	8,583		7,962
Total accrued liabilities	$	78,718	$	104,923

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Fair Value Measurements (Fair Value Of Long Term Debt) (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, carrying value		$ 792,719
Unamortized debt discount		(16,511)	$ (20,900)
Term Loan Maturing June 2018 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, carrying value		262,500	277,500
Long-term debt, fair value	[1]	259,547	270,563
Nordea Q5000 Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, carrying value		241,071	0
Long-term debt, fair value	[1]	236,852	0
MARAD Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, carrying value		89,148	94,792
Long-term debt, fair value	[1]	98,036	104,830
Convertible Senior Notes (Matures March 2032) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, carrying value	[2]	200,000	200,000
Long-term debt, fair value	[1],[2]	166,250	222,900
Loan Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, carrying value		792,719	572,292
Long-term debt, fair value	[1]	$ 760,685	$ 598,293

[1] The estimated fair value of the 2032 Notes was determined using Level 1 inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt was estimated using Level 2 fair value inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt 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.

[2] Carrying amount excludes the related unamortized debt discount of $16.5 million at September 30, 2015 and $20.9 million at December 31, 2014

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Long-Term Debt (Convertible Senior Notes Dues 2032) (Details)	1 Months Ended
	Mar. 31, 2012 USD ($) $ / shares	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Long-term debt, carrying value		$ 792,719,000
Unamortized debt discount		16,511,000	$ 20,900,000
Convertible Senior Notes 2032 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying value	$ 200,000,000	200,000,000
Debt instrument interest rate	3.25%
Debt instrument, frequency of periodic payment	semi-annually
Debt instrument, maturity date	Mar. 15, 2032
Initial conversion ratio	0.0399752
Per share conversion price | $ / shares	$ 25.02
Debt instrument, redemption price, percentage of principal amount redeemed	100.00%
Unamortized debt discount	$ 35,400,000	$ 16,511,000
Expected life used to estimate fair value	6 years
Effective interest rate	6.90%
Carrying amount of equity component	$ 22,500,000

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Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Awards Granted

During the nine-month period ended September 30, 2015, the following grants of share-based awards were made under the 2005 Incentive Plan: 

Date of Grant	Shares	Grant Date Fair Value Per Share		Vesting Period
January 2, 2015 (1)	289,163	$	21.70	33% per year over three years
January 2, 2015 (2)	289,163	$	25.06	100% on January 1, 2018
January 5, 2015 (3)	3,946	$	21.66	100% on January 1, 2017
January 12, 2015 (1)	3,866	$	19.40	33% per year over three years
January 12, 2015 (2)	3,866	$	25.06	100% on January 11, 2018
February 1, 2015 (1)	2,664	$	18.77	33% per year over three years
February 1, 2015 (2)	2,664	$	25.06	100% on January 31, 2018
April 1, 2015 (3)	6,476	$	14.96	100% on January 1, 2017
July 1, 2015 (3)	6,631	$	12.63	100% on January 1, 2017

(1) Reflects the grant of restricted stock to our executive officers and selected management employees.

(2) Reflects the grant of performance share units (“PSUs”) to our executive officers and selected 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 awarded PSUs and the minimum amount being zero. The vested PSUs may be settled in either cash or shares of our common stock at the discretion of the Compensation Committee of our Board of Directors.

(3) Reflects the grant of restricted stock to certain members of our Board of Directors who have made an election to take their quarterly fees in stock in lieu of cash.

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Computations Of Basic And Diluted EPS

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, 2015				Three Months Ended September 30, 2014
	Income			Shares	Income			Shares
Basic:
Net income applicable to common shareholders	$	9,880			$	75,586
Less: Undistributed income allocated to participating securities	(52		)		(392		)
Undistributed income allocated to common shares	$	9,828		105,438	$	75,194		104,997
Diluted:
Undistributed income allocated to common shares	$	9,828		105,438	$	75,194		104,997
Effect of dilutive securities:
Share-based awards other than participating securities	—			—	—			341
Undistributed income reallocated to participating securities	—			—	1			—
Net income applicable to common shareholders	$	9,828		105,438	$	75,195		105,338

	Nine Months Ended September 30, 2015				Nine Months Ended September 30, 2014
	Income			Shares	Income			Shares
Basic:
Net income applicable to common shareholders	$	26,887			$	187,087
Less undistributed income allocated to participating securities	(149		)		(980		)
Undistributed income allocated to common shares	$	26,738		105,362	$	186,107		105,038
Diluted:
Undistributed income allocated to common shares	$	26,738		105,362	$	186,107		105,038
Effect of dilutive securities:
Share-based awards other than participating securities	—			—	—			336
Undistributed income reallocated to participating securities	—			—	3			—
Net income applicable to common shareholders	$	26,738		105,362	$	186,110		105,374

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Business Segment Information (Narrative) (Details)	9 Months Ended
	Sep. 30, 2015 segment vessel
Segment Reporting Information [Line Items]
Number of reportable segments	3
Robotics [Member]
Segment Reporting Information [Line Items]
Number of chartered vessels | vessel	5

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Long-Term Debt (MARAD Debt) (Details) - MARAD Debt [Member]	1 Months Ended
	Aug. 31, 2002	Sep. 30, 2005
Debt Instrument [Line Items]
Debt instrument, frequency of periodic payment	semi-annual
Debt instrument, maturity date	February 2027
Guarantor obligations, liquidation proceeds, percentage	50.00%
Basis spread on variable rate	0.20%
Debt instrument interest rate		4.93%

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Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Segment Reporting Information By Segment

Certain financial data by reportable segment are summarized as follows (in thousands): 

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net revenues —
Well Intervention	$	94,895		$	205,139		$	284,621		$	546,057
Robotics	83,310			131,707			238,582			339,301
Production Facilities	19,133			24,184			57,811			71,373
Other	—			—			—			358
Intercompany elimination	(14,876		)	(20,193		)	(42,895		)	(57,093		)
Total	$	182,462		$	340,837		$	538,119		$	899,996
Income (loss) from operations —
Well Intervention	$	6,233		$	80,789		$	25,162		$	194,297
Robotics	14,329			28,397			28,089			60,415
Production Facilities	6,938			11,284			19,960			33,127
Corporate and other	(8,965		)	(14,242		)	(24,581		)	(34,754		)
Intercompany elimination	(163		)	103			(256		)	(1,050		)
Total	$	18,372		$	106,331		$	48,374		$	252,035
Equity in earnings (losses) of investments	$	(251	)	$	508		$	(553	)	$	709

Summary Of Intercompany Segment Revenues

Intercompany segment revenues are as follows (in thousands): 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Well Intervention	$	7,324	$	8,635	$	18,687	$	22,052
Robotics	7,552		11,558		24,208		35,041
Total	$	14,876	$	20,193	$	42,895	$	57,093

Summary Of Identifiable Assets

The following table reflects total assets by reportable segment (in thousands): 

	September 30, 2015		December 31, 2014
Well Intervention	$	1,757,962	$	1,470,349
Robotics	295,617		299,701
Production Facilities	437,839		459,427
Corporate and other	416,582		471,221
Total	$	2,908,000	$	2,700,698

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

The following tables provide additional information relating to other financial instruments measured at fair value on a recurring basis (in thousands): 

	Fair Value Measurements at September 30, 2015 Using
	Level 1		Level 2 (1)		Level 3		Total		Valuation Technique
Liabilities:
Foreign exchange contracts	$	—	$	62,379	$	—	$	62,379	(c)
Interest rate swaps	—		3,171		—		3,171		(c)
Total liability	$	—	$	65,550	$	—	$	65,550

	Fair Value Measurements at December 31, 2014 Using
	Level 1		Level 2 (1)		Level 3		Total		Valuation Technique
Assets:
Interest rate swaps	$	—	$	369	$	—	$	369	(c)
Liabilities:
Foreign exchange contracts	—		50,428		—		50,428		(c)
Interest rate swaps	—		561		—		561		(c)
Total net liability	$	—	$	50,620	$	—	$	50,620

(1) Unless otherwise indicated, the fair value of our Level 2 derivative instruments 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 and market volatility and liquidity based on market data. Our actual results may differ from our estimates, and these differences could be positive or negative. See Note 14 for further discussion on fair value of our derivative instruments.

Fair Value Of Long-Term Debt

The fair value of our long-term debt is as follows (in thousands): 

	September 30, 2015				December 31, 2014
	Carrying Value		Fair Value (2)		Carrying Value		Fair Value (2)
Term Loan (matures June 2018)	$	262,500	$	259,547	$	277,500	$	270,563
Nordea Q5000 Loan (matures April 2020)	241,071		236,852		—		—
MARAD Debt (matures February 2027)	89,148		98,036		94,792		104,830
2032 Notes (mature March 2032) (1)	200,000		166,250		200,000		222,900
Total debt	$	792,719	$	760,685	$	572,292	$	598,293

(1) Carrying amount excludes the related unamortized debt discount of $16.5 million at September 30, 2015 and $20.9 million at December 31, 2014.

(2) The estimated fair value of the 2032 Notes was determined using Level 1 inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt was estimated using Level 2 fair value inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt 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.

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Company Overview

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Company Overview

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 seek to provide services and methodologies that we believe are critical to developing offshore reservoirs and maximizing production economics. We provide services primarily in deepwater in the Gulf of Mexico, North Sea, Asia Pacific and West Africa regions, and expect to expand our operations offshore Brazil. Our “life of field” services are segregated into three reportable business segments: Well Intervention, Robotics and Production Facilities (Note 11).

Our Well Intervention segment includes our vessels and equipment used to perform well intervention services primarily in the Gulf of Mexico and North Sea regions. Our Well Intervention segment also includes intervention riser systems (“IRSs”) that may be available on a rental basis. Our well intervention vessels include the Q4000, the Helix 534, the Seawell, the Well Enhancer and the Skandi Constructor, which is a chartered vessel. Our well intervention fleet also includes the Q5000, a newbuild semi-submersible well intervention vessel that was delivered to us at the end of April 2015 and is currently working for a client in the Gulf of Mexico. We are currently constructing another well intervention vessel, the Q7000. We have also contracted to charter two newbuild monohull vessels, to be used in connection with our contracts to provide well intervention services offshore Brazil.

Our Robotics segment includes remotely operated vehicles (“ROVs”), trenchers and ROVDrills designed to complement offshore construction and well intervention services, and currently operates five chartered ROV and trencher support vessels including the Grand Canyon II, which was delivered to us in late April 2015.

Our Production Facilities segment includes the Helix Producer I vessel (“HP I”) as well as our equity investments in Deepwater Gateway, L.L.C. (“Deepwater Gateway”) and Independence Hub, LLC (“Independence Hub”) (Note 5). The Production Facilities segment also includes the Helix Fast Response System (“HFRS”), which provides certain operators access to our Q4000 and HP I vessels in the event of a well control incident in the Gulf of Mexico.

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Derivative Instruments And Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives Designated As Hedging Instruments

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

	September 30, 2015			December 31, 2014
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Asset Derivatives:
Interest rate swaps	Other assets, net	$	—	Other assets, net	$	369
		$	—		$	369
Liability Derivatives:
Foreign exchange contracts	Accrued liabilities	$	20,443	Accrued liabilities	$	12,661
Interest rate swaps	Accrued liabilities	2,347		Accrued liabilities	561
Foreign exchange contracts	Other non-current liabilities	41,936		Other non-current liabilities	37,767
Interest rate swaps	Other non-current liabilities	824		Other non-current liabilities	—
		$	65,550		$	50,989

Gain (Loss) Recognized In OCI On Derivatives, Net Of Tax

The following tables present the impact that derivative instruments designated as cash flow hedges had on our Accumulated OCI (net of tax) and our condensed consolidated statements of operations (in thousands). We estimate that as of September 30, 2015, $13.4 million of losses in Accumulated OCI associated with our derivatives is expected to be reclassified into earnings within the next 12 months.

	Gain (Loss) Recognized in OCI on Derivatives, Net of Tax
	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Foreign exchange contracts	$	(5,777	)	$	(5,713	)	$	(7,136	)	$	(4,823	)
Interest rate swaps	(975		)	255			(1,848		)	141
	$	(6,752	)	$	(5,458	)	$	(8,984	)	$	(4,682	)

Loss Reclassified From Accumulated OCI Into Earnings

The following tables present the impact that derivative instruments designated as cash flow hedges had on our Accumulated OCI (net of tax) and our condensed consolidated statements of operations (in thousands). We estimate that as of September 30, 2015, $13.4 million of losses in Accumulated OCI associated with our derivatives is expected to be reclassified into earnings within the next 12 months.

	Location of Loss Reclassified from Accumulated OCI into Earnings	Loss Reclassified from Accumulated OCI into Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2015			2014			2015			2014
Foreign exchange contracts	Cost of sales	$	(3,433	)	$	(215	)	$	(7,828	)	$	(646	)
Interest rate swaps	Net interest expense	(822		)	(597		)	(1,358		)	(1,434		)
		$	(4,255	)	$	(812	)	$	(9,186	)	$	(2,080	)

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Equity Investments (Details) $ in Thousands	1 Months Ended	9 Months Ended
	Jul. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) equity_investment ft	Dec. 31, 2014 USD ($)
Schedule of Equity Method Investments [Line Items]
Number of equity investments | equity_investment		2
Equity investments in unconsolidated affiliates		$ 143,481	$ 149,623
Business combination, consideration transferred	$ 1,500,000
Deepwater Gateway, L.L.C. [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		50.00%
Equity investments in unconsolidated affiliates		$ 77,500	80,900
Capitalized interest		$ 1,200	1,200
Independence Hub, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		20.00%
Equity investments in unconsolidated affiliates		$ 66,000	68,800
Capitalized interest		$ 3,700	$ 3,900
Water depth | ft		8,000

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Earnings Per Share (Computations Of Basic And Diluted EPS) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Basic:
Net income applicable to common shareholders	$ 9,880	$ 75,586	$ 26,887	$ 187,087
Less undistributed income allocated to participating securities	(52)	(392)	(149)	(980)
Undistributed income allocated to common shares	$ 9,828	$ 75,194	$ 26,738	$ 186,107
Weighted average number of shares outstanding (in shares)	105,438	104,997	105,362	105,038
Diluted:
Undistributed income allocated to common shares	$ 9,828	$ 75,194	$ 26,738	$ 186,107
Share-based awards other than participating securities	$ 0	$ 0	$ 0	$ 0
Share-based awards other than participating securities (in shares)	0	341	0	336
Undistributed income reallocated to participating securities	$ 0	$ 1	$ 0	$ 3
Net income applicable to common shareholders	$ 9,828	$ 75,195	$ 26,738	$ 186,110
Weighted average number of shares outstanding (in shares)	105,438	105,338	105,362	105,374

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 468,936	$ 476,492
Accounts receivable:
Trade, net of allowance for uncollectible accounts of $7,775 and $4,735, respectively	114,285	104,724
Unbilled revenue	31,870	28,542
Costs in excess of billing	774	2,034
Current deferred tax assets	36,059	31,180
Other current assets	44,500	51,301
Total current assets	696,424	694,273
Property and equipment	2,515,691	2,241,444
Less accumulated depreciation	(581,368)	(506,060)
Property and equipment, net	1,934,323	1,735,384
Other assets:
Equity investments	143,481	149,623
Goodwill	61,648	62,146
Other assets, net	72,124	59,272
Total assets	2,908,000	2,700,698
Current liabilities:
Accounts payable	75,781	83,403
Accrued liabilities	78,718	104,923
Income tax payable	0	9,143
Current maturities of long-term debt	71,640	28,144
Total current liabilities	226,139	225,613
Long-term debt	704,568	523,228
Deferred tax liabilities	257,596	260,275
Other non-current liabilities	46,412	38,108
Total liabilities	$ 1,234,715	$ 1,047,224
Commitments and contingencies
Shareholders’ equity:
Common stock, no par, 240,000 shares authorized, 106,116 and 105,586 shares issued, respectively	$ 944,718	$ 934,447
Retained earnings	808,166	781,279
Accumulated other comprehensive loss	(79,599)	(62,252)
Total shareholders’ equity	1,673,285	1,653,474
Total liabilities and shareholders’ equity	$ 2,908,000	$ 2,700,698

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Long-Term Debt (Nordea Credit Agreement) (Details) - USD ($) $ in Thousands	1 Months Ended		8 Months Ended	9 Months Ended
	Apr. 30, 2015	Sep. 30, 2014	Apr. 29, 2015	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015
Debt Instrument [Line Items]
Funded amount				$ 250,000	$ 0
Nordea Q5000 Loan [Member]
Debt Instrument [Line Items]
Original borrowing capacity		$ 250,000			250,000
Funded amount	$ 250,000
Commitment fee percentage			0.875%
Debt instrument, maturity date		Apr. 30, 2020
Debt instrument, periodic payment, principal		$ 8,900
Debt instrument, frequency of periodic payment		quarterly
Debt instrument, periodic payment terms, balloon payment to be paid		$ 80,400			$ 80,400
Nordea Q5000 Loan [Member] | Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Derivative, lower range of basis spread on variable rate						1.49%
Derivative, higher range of basis spread on variable rate						1.52%
Derivative, notional amount						$ 187,500
Nordea Q5000 Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		2.50%

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Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income, including noncontrolling interests	$ 26,887	$ 187,590
Adjustments to reconcile net income, including noncontrolling interests, to net cash provided by operating activities:
Depreciation and amortization	86,333	81,274
Amortization of deferred financing costs	4,117	3,653
Stock-based compensation expense	7,941	5,711
Amortization of debt discount	4,409	4,149
Deferred income taxes	(2,403)	24,728
Excess tax from stock-based compensation	98	(120)
Gain on disposition of assets, net	0	(10,418)
Unrealized loss and ineffectiveness on derivative contracts, net	2,222	69
Changes in operating assets and liabilities:
Accounts receivable, net	(13,326)	(16,496)
Other current assets	6,610	(19,388)
Income tax payable, net of income tax receivable	(12,152)	25,440
Accounts payable and accrued liabilities	(52,045)	25,127
Other noncurrent, net	(19,164)	(9,758)
Net cash provided by operating activities	39,527	301,561
Cash flows from investing activities:
Capital expenditures	(280,523)	(204,528)
Distributions from equity investments, net	5,853	5,041
Proceeds from sale of assets	7,500	11,074
Acquisition of noncontrolling interests	0	(20,085)
Net cash used in investing activities	(267,170)	(208,498)
Cash flows from financing activities:
Proceeds from Nordea Q5000 Loan	250,000	0
Repayment of Nordea Q5000 Loan	(8,929)	0
Repayment of Term Loan	(15,000)	(11,250)
Repayment of MARAD Debt	(5,644)	(5,376)
Deferred financing costs	(1,611)	(3,143)
Distributions to noncontrolling interests	0	(1,018)
Repurchases of common stock	(1,056)	(8,538)
Excess tax from stock-based compensation	(98)	120
Proceeds from issuance of ESPP shares	3,484	3,223
Net cash provided by (used in) financing activities	221,146	(25,982)
Effect of exchange rate changes on cash and cash equivalents	(1,059)	1,248
Net increase (decrease) in cash and cash equivalents	(7,556)	68,329
Cash and cash equivalents:
Balance, beginning of year	476,492	478,200
Balance, end of period	$ 468,936	$ 546,529

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Business Segment Information (Intercompany Segment Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets	$ 2,908,000	$ 2,700,698
Well Intervention [Member]
Segment Reporting Information [Line Items]
Assets	1,757,962	1,470,349
Robotics [Member]
Segment Reporting Information [Line Items]
Assets	295,617	299,701
Production Facilities [Member]
Segment Reporting Information [Line Items]
Assets	437,839	459,427
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Assets	$ 416,582	$ 471,221

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Details Of Certain Accounts (Other Current Assets) (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
		Jan. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Note receivable	[1]				$ 10,000	$ 17,500
Other receivables					597	423
Prepaid insurance					7,968	6,582
Other prepaids					9,295	15,541
Spare parts inventory					5,022	1,857
Income tax receivable					3,477	0
Value added tax receivable					8,060	9,326
Other					81	72
Total other current assets					$ 44,500	$ 51,301
Note receivable, interest rate					6.00%
Financing receivable, gross					$ 20,000
Note receivable, periodic principal payment		$ 7,500
Scenario, Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Note receivable, periodic principal payment			$ 10,000	$ 10,000

[1] Relates to the remaining balance of the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014. The balance at December 31, 2014 included $7.5 million, which was paid in January 2015. Interest on the note is payable quarterly at a rate of 6% per annum. Under the terms of the note, the remaining $20 million principal balance is required to be paid with a $10 million payment on December 31, 2015 and December 31, 2016.

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Derivative Instruments And Hedging Activities (Gain (Loss) Recognized In OCI On Derivatives, Net Of Tax) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives, net of tax	$ (6,752)	$ (5,458)	$ (8,984)	$ (4,682)
Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives, net of tax	(5,777)	(5,713)	(7,136)	(4,823)
Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives, net of tax	$ (975)	$ 255	$ (1,848)	$ 141

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Details Of Certain Accounts (Tables)

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Other Current Assets

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

	September 30, 2015		December 31, 2014
Note receivable (1)	$	10,000	$	17,500
Other receivables	597		423
Prepaid insurance	7,968		6,582
Other prepaids	9,295		15,541
Spare parts inventory	5,022		1,857
Value added tax receivable	8,060		9,326
Other	81		72
Total other current assets	$	44,500	$	51,301

(1) Relates to the remaining balance of the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014.  The balance at December 31, 2014 included $7.5 million, which was paid in January 2015. Interest on the note is payable quarterly at a rate of 6% per annum.  Under the terms of the note, the remaining $20 million principal balance is required to be paid with a $10 million payment on December 31, 2015 and December 31, 2016.

Other Assets, Net

	September 30, 2015		December 31, 2014
Note receivable (1)	$	10,000	$	10,000
Deferred dry dock expenses, net	27,207		11,631
Deferred financing costs, net (Note 6)	21,182		23,399
Intangible assets with finite lives, net	736		696
Charter fee deposit (Note 12)	12,544		12,544
Other	455		1,002
Total other assets, net	$	72,124	$	59,272

(1) Relates to the remaining balance of the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014. The balance at December 31, 2014 included $7.5 million, which was paid in January 2015. Interest on the note is payable quarterly at a rate of 6% per annum. Under the terms of the note, the remaining $20 million principal balance is required to be paid with a $10 million payment on December 31, 2015 and December 31, 2016.

Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	September 30, 2015		December 31, 2014
Accrued payroll and related benefits	$	19,598	$	61,246
Current asset retirement obligations	553		575
Unearned revenue	17,879		11,461
Accrued interest	2,086		4,221
Derivative liability (Note 14)	22,790		13,222
Taxes payable excluding income tax payable	7,229		6,236
Other	8,583		7,962
Total accrued liabilities	$	78,718	$	104,923

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Details Of Certain Accounts (Other Assets, Net) (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
		Jan. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014	Nov. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Note receivable	[1]				$ 10,000	$ 10,000
Deferred dry dock expenses, net					27,207	11,631
Deferred financing costs, net (Note 6)					21,182	23,399
Intangible assets with finite lives, net					736	696
Charter fee deposit (Note 12)					12,544	12,544	$ 12,500
Other					455	1,002
Total other assets, net					$ 72,124	$ 59,272
Note receivable, interest rate					6.00%
Financing receivable, gross					$ 20,000
Note receivable, periodic principal payment		$ 7,500
Scenario, Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Note receivable, periodic principal payment			$ 10,000	$ 10,000

[1] Relates to the remaining balance of the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014. The balance at December 31, 2014 included $7.5 million, which was paid in January 2015. Interest on the note is payable quarterly at a rate of 6% per annum. Under the terms of the note, the remaining $20 million principal balance is required to be paid with a $10 million payment on December 31, 2015 and December 31, 2016.

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Equity Investments (Tables)

9 Months Ended

Sep. 30, 2015

Equity Method Investments and Joint Ventures [Abstract]

Distributions From Equity Investments

We received the following distributions from our equity method investments (in thousands): 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Deepwater Gateway	$	1,200	$	500	$	3,900	$	4,250
Independence Hub	560		200		1,400		1,500
Total	$	1,760	$	700	$	5,300	$	5,750

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Basis Of Presentation And New Accounting Standards

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis Of Presentation And New Accounting Standards

Basis of Presentation and New Accounting Standards 

The accompanying condensed consolidated financial statements include the accounts of Helix Energy Solutions Group, Inc. and its wholly and majority owned subsidiaries (collectively, “Helix” or the “Company”). Unless the context indicates otherwise, the terms “we,” “us” and “our” in this report refer collectively to Helix and its wholly and majority owned 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.

The accompanying condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) and are consistent in all material respects with those applied in our 2014 Annual Report on Form 10-K (“2014 Form 10-K”). 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. The operating results for the three- and nine-month periods ended September 30, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. Our balance sheet as of December 31, 2014 included herein has been derived from the audited balance sheet as of December 31, 2014 included in our 2014 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 2014 Form 10-K.

We have made all adjustments (which were normal recurring adjustments) that we believe are necessary for a fair presentation of the condensed consolidated balance sheets, statements of operations, statements of comprehensive income (loss), and statements of cash flows, as applicable. Our operating results for the nine-month period ended September 30, 2015 included an out-of-period adjustment to correct an error related to a well intervention project performed in 2014 in which our revenues included certain income tax withholding payments made on our behalf and which now will have to be refunded to the counterparty. This adjustment affects our 2015 operating results by reducing our net revenues by $2.5 million and increasing our net loss by $1.7 million. The amounts were not deemed material with respect to prior year or the anticipated results and the trend of earnings for fiscal year 2015.

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.

In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” This ASU provides a single five-step approach to account for revenue arising from contracts with customers. The ASU requires an entity to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This revenue standard was originally effective prospectively for annual reporting periods beginning after December 15, 2016, including interim periods. In August 2015, the FASB issued ASU No. 2015-14 to defer the effective date of ASU No. 2014-09 by one year to December 15, 2017. Adoption as of the original effective date is permitted. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption through a cumulative adjustment. We are currently evaluating which transition approach to use and the potential impact the adoption of this standard may have on our consolidated financial statements.

In April 2015, the FASB issued ASU No. 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” This ASU requires that debt issuance costs related to a recognized debt liability be reported on the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The guidance is effective retrospectively beginning in the first quarter of fiscal 2017 and early adoption is permitted. We do not expect this guidance to materially affect our balance sheets as amounts will be reclassified from long-term assets to partial offsets to long-term debt. The guidance will not affect our statements of operations or statements of cash flows.

In July 2015, the FASB issued ASU No. 2015-11, “Simplifying the Measurement of Inventory.” This ASU requires inventory that is measured using first-in, first-out or average cost method to be recorded at the lower of cost and net realizable value. The guidance is effective prospectively for annual reporting periods beginning after December 15, 2016, including interim periods. Early adoption is permitted. We do not expect this guidance to materially affect our consolidated financial statements.

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Allowance for uncollectible accounts	$ 7,775	$ 4,735
Shareholders’ equity:
Common stock, shares authorized	240,000,000	240,000,000
Common stock, shares issued	106,116,000	105,586,000

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Business Segment Information

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Business Segment Information

Business Segment Information 

We have three reportable business segments: Well Intervention, Robotics and Production Facilities. Our Well Intervention segment includes our vessels and equipment used to perform well intervention services primarily in the Gulf of Mexico and North Sea regions. Our well intervention vessels include the Q4000, the Q5000, the Helix 534, the Seawell, the Well Enhancer and the Skandi Constructor, which is a chartered vessel. Our well intervention segment also includes certain intervention riser systems that are available on a rental basis. Our Robotics segment includes ROVs, trenchers and ROVDrills designed to complement offshore construction and well intervention services, and currently operates five chartered ROV and trencher support vessels. The Production Facilities segment includes the HP I as well as our investments in Deepwater Gateway and Independence Hub that are accounted for under the equity method. The results of our previously reported Subsea Construction segment are immaterial and thus no longer meet the threshold to be separately reported as a business segment. These results are now aggregated within “Other” for all periods presented in this Quarterly Report on Form 10-Q. All material intercompany transactions between the segments have been eliminated.

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net revenues —
Well Intervention	$	94,895		$	205,139		$	284,621		$	546,057
Robotics	83,310			131,707			238,582			339,301
Production Facilities	19,133			24,184			57,811			71,373
Other	—			—			—			358
Intercompany elimination	(14,876		)	(20,193		)	(42,895		)	(57,093		)
Total	$	182,462		$	340,837		$	538,119		$	899,996
Income (loss) from operations —
Well Intervention	$	6,233		$	80,789		$	25,162		$	194,297
Robotics	14,329			28,397			28,089			60,415
Production Facilities	6,938			11,284			19,960			33,127
Corporate and other	(8,965		)	(14,242		)	(24,581		)	(34,754		)
Intercompany elimination	(163		)	103			(256		)	(1,050		)
Total	$	18,372		$	106,331		$	48,374		$	252,035
Equity in earnings (losses) of investments	$	(251	)	$	508		$	(553	)	$	709

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,
	2015		2014		2015		2014
Well Intervention	$	7,324	$	8,635	$	18,687	$	22,052
Robotics	7,552		11,558		24,208		35,041
Total	$	14,876	$	20,193	$	42,895	$	57,093

The following table reflects total assets by reportable segment (in thousands): 

	September 30, 2015		December 31, 2014
Well Intervention	$	1,757,962	$	1,470,349
Robotics	295,617		299,701
Production Facilities	437,839		459,427
Corporate and other	416,582		471,221
Total	$	2,908,000	$	2,700,698

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Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 16, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2015
Entity Registrant Name	HELIX ENERGY SOLUTIONS GROUP INC
Entity Central Index Key	0000866829
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		106,137,010
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No

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Commitments And Contingencies And Other Matters

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies And Other Matters

Commitments and Contingencies and Other Matters 

Commitments 

In February 2013, we contracted to charter the Grand Canyon II and the Grand Canyon III for use in our robotics operations. The terms of the charters are for five years from the respective delivery dates. We took delivery of the Grand Canyon II in late April 2015 and received a $4.7 million non-refundable payment from the shipyard that constructed the vessel related to the delayed delivery of the vessel. This payment will be amortized as a reduction in our cost of sales over the five-year charter for the vessel. The delivery of the Grand Canyon III has been extended until February 2016.

In September 2013, we executed a second contract with the same shipyard in Singapore that constructed the Q5000. This contract is for the construction of a newbuild semi-submersible well intervention vessel, the Q7000, which is to be built to North Sea standards. This $346.0 million shipyard contract represents the majority of the expected costs associated with the construction of the Q7000. Pursuant to the original terms of this contract, 20% of the contract price was paid upon the signing of the contract and the remaining 80% was to be paid upon the delivery of the vessel. Pursuant to an amendment we entered into with the shipyard in June 2015, the remaining 80% will now be paid in two installments, with 20% in June 2016 and 60% upon the delivery of the vessel. We agreed to pay the shipyard incremental costs of up to $14.5 million to extend the scheduled delivery of the Q7000 from mid-2016 to July 30, 2017. These costs are capitalizable as they are incurred during the construction of the vessel. We paid $7.3 million of these costs in July 2015 and the remaining costs will be paid upon the delivery of the vessel. At September 30, 2015, our total investment in the Q7000 was $108.9 million, including the $69.2 million paid to the shipyard upon signing the contract.

In February 2014, we entered into agreements with Petróleo Brasileiro S.A. (“Petrobras”) to provide well intervention services offshore Brazil. The initial term of the agreements with Petrobras is for four years with options to extend. In connection with the Petrobras agreements, we entered into charter agreements with Siem Offshore AS for two newbuild monohull vessels, the first of which is expected to be in service for Petrobras in 2016 and the second in late 2016 or early 2017. At September 30, 2015, our total investment in the topside equipment for the two vessels was $99.9 million. In November 2014, we paid a charter fee deposit of $12.5 million, which will be used to reduce our future charter payments.

In September 2015, we extended the charter of the Skandi Constructor through April 1, 2017 at reduced rates to be effective October 15, 2015.

Contingencies and Claims 

We believe that there are currently no contingencies which would have a material effect on our financial position, results of operations or cash flows.

Litigation 

On July 31, 2015, a purported stockholder, Parviz Izadjoo, filed a class action lawsuit styled Parviz Izadjoo v. Owen Kratz and Helix Energy Solutions Group, Inc. against the Company and Mr. Owen Kratz, our Chief Executive Officer, in the United States District Court for the Southern District of Texas on behalf of a putative class of all purchasers of shares of our common stock between October 21, 2014, and July 21, 2015, inclusive. The lawsuit asserts violations of Section 10(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and SEC Rule 10b-5 as to both us and Mr. Kratz, and Section 20(a) of the Exchange Act against Mr. Kratz based on alleged misrepresentations and omissions in SEC filings and other public disclosures regarding projections for 2015 dry docks of two of the Company’s vessels working in the Gulf of Mexico, which allegedly caused the price at which putative class members bought stock during the proposed class period to be artificially inflated. The complaint seeks, among other relief, undisclosed damages. The deadline to apply for appointment as lead plaintiff was September 29, 2015. A lead plaintiff has not yet been appointed in this case. The Court has set an initial conference on November 16, 2015. We believe this lawsuit to be without merit and intend to vigorously defend against it.

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 based on alleged negligence. In addition, from time to time we incur other claims, such as contract disputes, in the normal course of business.

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Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Net revenues	$ 182,462	$ 340,837	$ 538,119	$ 899,996
Cost of sales	150,493	214,590	446,995	588,765
Gross profit	31,969	126,247	91,124	311,231
Gain on disposition of assets, net			0	10,418
Selling, general and administrative expenses	(13,597)	(19,916)	(42,750)	(69,614)
Income from operations	18,372	106,331	48,374	252,035
Equity in earnings (losses) of investments	(251)	508	(553)	709
Net interest expense	(8,713)	(3,856)	(18,018)	(12,856)
Other income (expense), net	(5)	598	(6,197)	(229)
Other income – oil and gas	571	1,837	4,396	15,709
Income before income taxes	9,974	105,418	28,002	255,368
Income tax provision	94	29,832	1,115	67,778
Net income, including noncontrolling interests	9,880	75,586	26,887	187,590
Less net income applicable to noncontrolling interests			0	(503)
Net income applicable to common shareholders	$ 9,880	$ 75,586	$ 26,887	$ 187,087
Earnings per share of common stock (in dollars per share)
Basic	$ 0.09	$ 0.72	$ 0.25	$ 1.77
Diluted	$ 0.09	$ 0.71	$ 0.25	$ 1.77
Weighted average common shares outstanding (in shares)
Basic	105,438	104,997	105,362	105,038
Diluted	105,438	105,338	105,362	105,374

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Long-Term Debt

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

Scheduled maturities of our long-term debt outstanding as of September 30, 2015 are as follows (in thousands):

	Term Loan			Nordea Q5000 Loan			MARAD Debt			2032 Notes (1)			Total
Less than one year	$	30,000		$	35,714		$	5,926		$	—		$	71,640
One to two years	30,000			35,715			6,222			—			71,937
Two to three years	202,500			35,714			6,532			—			244,746
Three to four years	—			35,714			6,858			—			42,572
Four to five years	—			98,214			7,200			—			105,414
Over five years	—			—			56,410			200,000			256,410
Total debt	262,500			241,071			89,148			200,000			792,719
Current maturities	(30,000		)	(35,714		)	(5,926		)	—			(71,640		)
Long-term debt, less current maturities	232,500			205,357			83,222			200,000			721,079
Unamortized debt discount (2)	—			—			—			(16,511		)	(16,511		)
Long-term debt	$	232,500		$	205,357		$	83,222		$	183,489		$	704,568

(1) Beginning in March 2018, the holders of our Convertible Senior Notes due 2032 may require us to repurchase these notes or we may at our option elect to repurchase these notes. The notes will mature in March 2032.

(2) Our Convertible Senior Notes due 2032 will increase to their face amount through accretion of non-cash interest charges through March 2018.

Below is a summary of certain components of our indebtedness:

Credit Agreement

In June 2013, we entered into a credit agreement (the “Credit Agreement”) with a group of lenders pursuant to which we borrowed $300 million under the Credit Agreement’s term loan (the “Term Loan”) and, subject to the terms of the Credit Agreement, may borrow additional amounts (the “Revolving Loans”) and/or obtain letters of credit under a revolving credit facility (the “Revolving Credit Facility”) up to $600 million. Subject to existing lender participation and/or the participation of new lenders, and subject to standard conditions precedent, we may obtain an increase of up to $200 million in aggregate commitments with respect to the Revolving Credit Facility, additional term loans or a combination thereof. At September 30, 2015, we had no borrowings under the $600 million Revolving Credit Facility and our available borrowing capacity under that facility, based on the leverage ratio covenant, totaled $243.4 million, net of $17.5 million of letters of credit issued.

The Term Loan and the Revolving Loans (together, the “Loans”) bear interest, at our election, in relation to either the base rate established by Bank of America N.A. or to a LIBOR rate, provided that all Swing Line Loans (as defined in the Credit Agreement) will be base rate loans.

The Loans or portions thereof bearing interest at the base rate currently bear interest at a per annum rate equal to the base rate plus a margin ranging from 1.00% to 3.00%. The Loans or portions thereof bearing interest at a LIBOR rate currently bear interest at the LIBOR rate selected by us plus a margin ranging from 2.00% to 4.00%. A letter of credit fee is payable by us equal to our applicable margin for LIBOR rate Loans multiplied by the daily amount available to be drawn under outstanding letters of credit. Margins on the Loans will vary in relation to the consolidated coverage ratio, as provided by the Credit Agreement. We currently also pay a fixed commitment fee of 0.50% on the unused portion of our Revolving Credit Facility. The Term Loan currently bears interest at the one-month LIBOR rate plus 2.50%. In September 2013, we entered into various interest rate swap contracts to fix the one-month LIBOR rate on $148.1 million of our borrowings under the Term Loan. The fixed LIBOR rates are between 74 and 75 basis points.

The Term Loan is repayable in scheduled principal installments of 5% in each of the initial two loan years ($15 million per year), and 10% in each of the remaining three loan years ($30 million per year), payable quarterly, with a balloon payment of $180 million at maturity. These installment amounts are subject to adjustment for any prepayments on the Term Loan. We may elect to prepay amounts outstanding under the Term Loan without premium or penalty, but may not reborrow any amounts prepaid. We may prepay amounts outstanding under the Revolving Loans without premium or penalty, and may reborrow any amounts paid up to the amount of the Revolving Credit Facility. The Loans mature on June 19, 2018. In certain circumstances, we will be required to prepay the Loans.

The Credit Agreement and the other documents entered into in connection with the Credit Agreement (together, the “Loan Documents”) include terms and conditions, including covenants, which we consider customary for this type of transaction. The covenants include restrictions on our and our subsidiaries’ ability to grant liens, incur indebtedness, make investments, merge or consolidate, sell or transfer assets, pay dividends and incur capital expenditures. In addition, the Credit Agreement obligates us to meet certain financial ratios, including the Consolidated Interest Coverage Ratio and the Consolidated Leverage Ratio (as defined in the Credit Agreement). In May 2015, we amended the Credit Agreement to revise the maximum permitted Consolidated Leverage Ratio as follows: 4.00 to 1.00 for the second quarter of 2015, 4.50 to 1.00 for the third quarter of 2015 through the fourth quarter of 2016, 4.00 to 1.00 for the first quarter of 2017, and 3.50 to 1.00 for the second quarter of 2017 and thereafter. Prior to the amendment, the leverage ratio was 3.50 to 1.00, which applied to all periods after January 1, 2014.

We have designated five of our foreign subsidiaries, and may designate any newly established foreign subsidiaries, as subsidiaries that are not generally subject to the covenants in the Credit Agreement (the “Unrestricted Subsidiaries”), provided we meet certain liquidity requirements, in which case EBITDA (net of cash distributions to the parent) of the Unrestricted Subsidiaries is not included in the calculations with respect to our financial covenants. Our obligations under the Credit Agreement are guaranteed by our wholly owned domestic subsidiaries (except Cal Dive I – Title XI, Inc.) and Canyon Offshore Limited, a wholly owned Scottish subsidiary. Our obligations under the Credit Agreement, and of the guarantors under their guaranty, are secured by most of our assets of the parent and our wholly owned domestic subsidiaries (except Cal Dive I – Title XI, Inc.) and Canyon Offshore Limited, plus pledges of up to two-thirds of the shares of certain foreign subsidiaries.

Convertible Senior Notes Due 2032 

In March 2012, we completed a public offering and sale of $200 million in aggregate principal amount of Convertible Senior Notes due 2032 (the “2032 Notes”). The 2032 Notes bear interest at a rate of 3.25% per annum, and are payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2012. The 2032 Notes mature on March 15, 2032 unless earlier converted, redeemed or repurchased. The 2032 Notes are convertible in certain circumstances and during certain periods at an initial conversion rate of 39.9752 shares of common stock per $1,000 principal amount (which represents an initial conversion price of approximately $25.02 per share of common stock), subject to adjustment in certain circumstances as set forth in the Indenture governing the 2032 Notes. We have the right and the intention to settle any such future conversions in cash.

Prior to March 20, 2018, the 2032 Notes are not redeemable. On or after March 20, 2018, we, at our option, may redeem some or all of the 2032 Notes in cash, at any time upon at least 30 days’ notice, at a price equal to 100% of the principal amount plus accrued and unpaid interest (including contingent interest, if any) up to but excluding the redemption date. In addition, the holders of the 2032 Notes may require us to purchase in cash some or all of their 2032 Notes at a repurchase price equal to 100% of the principal amount of the 2032 Notes, plus accrued and unpaid interest (including contingent interest, if any) up to but excluding the applicable repurchase date, on March 15, 2018, March 15, 2022 and March 15, 2027, or, subject to specified exceptions, at any time prior to the 2032 Notes’ maturity following a fundamental change (as defined in the Indenture governing the 2032 Notes).

In connection with the issuance of the 2032 Notes, we recorded a discount of $35.4 million as required under existing accounting rules. To arrive at this discount amount, we estimated the fair value of the liability component of the 2032 Notes as of the date of their issuance (March 12, 2012) using an income approach. To determine this estimated fair value, we used borrowing rates of similar market transactions involving comparable liabilities at the time of issuance and an expected life of 6.0 years. In selecting the expected life, we selected the earliest date the holders could require us to repurchase all or a portion of the 2032 Notes (March 15, 2018). The effective interest rate for the 2032 Notes is 6.9% after considering the effect of the accretion of the related debt discount that represented the equity component of the 2032 Notes at their inception. We recorded $22.5 million related to the carrying amount of the equity component of the 2032 Notes.

MARAD Debt

This U.S. government guaranteed financing (the “MARAD Debt”) is pursuant to Title XI of the Merchant Marine Act of 1936 administered by the Maritime Administration, and was used to finance the construction of the Q4000. The MARAD Debt is payable in equal semi-annual installments beginning in August 2002 and matures in February 2027. The MARAD Debt is collateralized by the Q4000, is guaranteed 50% by us, and initially bore interest at a floating rate that approximated AAA Commercial Paper yields plus 20 basis points. As required by the MARAD Debt agreements, in September 2005, we fixed the interest rate on the debt through the issuance of a 4.93% fixed-rate note with the same maturity date.

Nordea Credit Agreement

In September 2014, a wholly owned subsidiary incorporated in Luxembourg, Helix Q5000 Holdings S.à r.l. (“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 at the end of April 2015 at the time the Q5000 vessel was delivered. 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 nonrecourse to Helix.

The Nordea Q5000 Loan bears interest at a LIBOR rate plus a margin of 2.5%, with an undrawn fee of 0.875% prior to funding on April 30, 2015. The Nordea Q5000 Loan matures on April 30, 2020 and is repayable in scheduled principal installments of $8.9 million, payable quarterly, with a balloon payment of $80.4 million at maturity. Q5000 Holdings may elect to prepay amounts outstanding under the Nordea Q5000 Loan without premium or penalty, but may not reborrow any amounts prepaid. Installment amounts are subject to adjustment for any prepayments on this debt. In certain circumstances, Q5000 Holdings will be required to prepay the loan. In June 2015, we entered into various interest rate swap contracts to fix the one-month LIBOR rate on $187.5 million of our borrowings under the Nordea Q5000 Loan. The fixed LIBOR rates are between 149 and 152 basis points.

The Nordea Credit Agreement and related loan documents include terms and conditions, including covenants, that are considered 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. As of September 30, 2015, Q5000 Holdings was in compliance with these covenants.

Other 

In accordance with our Credit Agreement, the 2032 Notes, the MARAD Debt agreements, and the Nordea Credit Agreement, we are required to comply with certain covenants, including certain financial ratios such as a consolidated interest coverage ratio and consolidated leverage ratio, as well as the maintenance of minimum net worth, working capital and debt-to-equity requirements. As of September 30, 2015, we were in compliance with these covenants.

Unamortized deferred financing costs are included in “Other assets, net” in the accompanying condensed consolidated balance sheets and are amortized over the life of the respective debt agreements. The following table reflects the components of our deferred financing costs (in thousands): 

	September 30, 2015							December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Term Loan (matures June 2018)	$	3,638	$	(1,637	)	$	2,001	$	3,638	$	(1,091	)	$	2,547
Revolving Credit Facility (matures June 2018)	14,787		(6,137		)	8,650		13,275		(3,982		)	9,293
2032 Notes (mature March 2032)	3,759		(2,224		)	1,535		3,759		(1,763		)	1,996
MARAD Debt (matures February 2027)	12,200		(6,589		)	5,611		12,200		(6,223		)	5,977
Nordea Q5000 Loan (matures April 2020)	3,685		(300		)	3,385		3,586		—			3,586
Total deferred financing costs	$	38,069	$	(16,887	)	$	21,182	$	36,458	$	(13,059	)	$	23,399

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Interest expense	$	10,897		$	8,952		$	29,057		$	24,474
Interest income	(470		)	(2,741		)	(1,577		)	(4,113		)
Capitalized interest	(1,714		)	(2,355		)	(9,462		)	(7,505		)
Net interest expense	$	8,713		$	3,856		$	18,018		$	12,856

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Equity Investments

9 Months Ended

Sep. 30, 2015

Equity Method Investments and Joint Ventures [Abstract]

Equity Investments

Equity Investments

As of September 30, 2015, we had two investments that we account for using the equity method of accounting: Deepwater Gateway and Independence Hub, both of which are included in our Production Facilities segment.

Deepwater Gateway, L.L.C.  In June 2002, we, along with Enterprise Products Partners L.P. (“Enterprise”), formed Deepwater Gateway, each with a 50% interest, to design, construct, install, own and operate a tension leg platform production hub primarily for Anadarko Petroleum Corporation’s Marco Polofield in the Deepwater Gulf of Mexico. Our investment in Deepwater Gateway totaled $77.5 million and $80.9 million as of September 30, 2015 and December 31, 2014, respectively (including net capitalized interest of $1.2 million at September 30, 2015 and December 31, 2014, respectively).

Independence Hub, LLC.  In December 2004, we acquired a 20% interest in Independence Hub, then an affiliate of Enterprise. Independence Hub owns the “Independence Hub” platform located in Mississippi Canyon Block 920 in a water depth of 8,000 feet. Our investment in Independence Hub was $66.0 million and $68.8 million as of September 30, 2015 and December 31, 2014, respectively (including capitalized interest of $3.7 million and $3.9 million at September 30, 2015 and December 31, 2014, respectively).

In July 2015, Enterprise sold its offshore Gulf of Mexico pipelines and services business to Genesis Energy, L.P. for approximately $1.5 billion. Enterprise’s ownership interests in both Deepwater Gateway and Independence Hub were included in the sale.

We received the following distributions from our equity method investments (in thousands): 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Deepwater Gateway	$	1,200	$	500	$	3,900	$	4,250
Independence Hub	560		200		1,400		1,500
Total	$	1,760	$	700	$	5,300	$	5,750

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Statement Of Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

The following table provides supplemental cash flow information (in thousands): 

	Nine Months Ended September 30,
	2015		2014
Interest paid, net of interest capitalized	$	11,823	$	11,671
Income taxes paid	$	16,008	$	53,390

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Fair Value Measurements

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

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 techniques 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, accounts receivable, accounts payable, long-term debt and various derivative instruments. The carrying amount of cash and cash equivalents, accounts receivable and accounts payable approximates fair value due to the short-term nature of these instruments. The following tables provide additional information relating to other financial instruments measured at fair value on a recurring basis (in thousands): 

	Fair Value Measurements at September 30, 2015 Using
	Level 1		Level 2 (1)		Level 3		Total		Valuation Technique
Liabilities:
Foreign exchange contracts	$	—	$	62,379	$	—	$	62,379	(c)
Interest rate swaps	—		3,171		—		3,171		(c)
Total liability	$	—	$	65,550	$	—	$	65,550

	Fair Value Measurements at December 31, 2014 Using
	Level 1		Level 2 (1)		Level 3		Total		Valuation Technique
Assets:
Interest rate swaps	$	—	$	369	$	—	$	369	(c)
Liabilities:
Foreign exchange contracts	—		50,428		—		50,428		(c)
Interest rate swaps	—		561		—		561		(c)
Total net liability	$	—	$	50,620	$	—	$	50,620

(1) Unless otherwise indicated, the fair value of our Level 2 derivative instruments 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 and market volatility and liquidity based on market data. Our actual results may differ from our estimates, and these differences could be positive or negative. See Note 14 for further discussion on fair value of our derivative instruments.

The fair value of our long-term debt is as follows (in thousands): 

	September 30, 2015				December 31, 2014
	Carrying Value		Fair Value (2)		Carrying Value		Fair Value (2)
Term Loan (matures June 2018)	$	262,500	$	259,547	$	277,500	$	270,563
Nordea Q5000 Loan (matures April 2020)	241,071		236,852		—		—
MARAD Debt (matures February 2027)	89,148		98,036		94,792		104,830
2032 Notes (mature March 2032) (1)	200,000		166,250		200,000		222,900
Total debt	$	792,719	$	760,685	$	572,292	$	598,293

(1) Carrying amount excludes the related unamortized debt discount of $16.5 million at September 30, 2015 and $20.9 million at December 31, 2014.

(2) The estimated fair value of the 2032 Notes was determined using Level 1 inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt was estimated using Level 2 fair value inputs under the market approach. The fair value of the Term Loan, the Nordea Q5000 Loan and the MARAD Debt 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.

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Earnings Per Share

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

We have shares of restricted stock issued and outstanding, which currently are unvested. Holders of such shares of unvested restricted stock are entitled to the same liquidation and dividend rights as the holders of our outstanding unrestricted common stock and the shares are thus considered participating securities. Under applicable accounting guidance, the undistributed earnings for each period are allocated based on the participation rights of both the common shareholders and 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. Further, we are required to compute earnings per share (“EPS”) amounts under the two class method in periods in which we have earnings from continuing operations.

The presentation of basic EPS amounts on the face of the accompanying condensed consolidated statements of operations is computed by dividing the net income applicable to our common shareholders by the weighted average shares of our outstanding common stock. The calculation of diluted EPS is similar to basic EPS, except that the denominator includes dilutive common stock equivalents and the income included in the numerator excludes the effects of the impact 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, 2015				Three Months Ended September 30, 2014
	Income			Shares	Income			Shares
Basic:
Net income applicable to common shareholders	$	9,880			$	75,586
Less: Undistributed income allocated to participating securities	(52		)		(392		)
Undistributed income allocated to common shares	$	9,828		105,438	$	75,194		104,997
Diluted:
Undistributed income allocated to common shares	$	9,828		105,438	$	75,194		104,997
Effect of dilutive securities:
Share-based awards other than participating securities	—			—	—			341
Undistributed income reallocated to participating securities	—			—	1			—
Net income applicable to common shareholders	$	9,828		105,438	$	75,195		105,338

	Nine Months Ended September 30, 2015				Nine Months Ended September 30, 2014
	Income			Shares	Income			Shares
Basic:
Net income applicable to common shareholders	$	26,887			$	187,087
Less undistributed income allocated to participating securities	(149		)		(980		)
Undistributed income allocated to common shares	$	26,738		105,362	$	186,107		105,038
Diluted:
Undistributed income allocated to common shares	$	26,738		105,362	$	186,107		105,038
Effect of dilutive securities:
Share-based awards other than participating securities	—			—	—			336
Undistributed income reallocated to participating securities	—			—	3			—
Net income applicable to common shareholders	$	26,738		105,362	$	186,110		105,374

Approximately 8.0 million of potentially dilutive shares related to the 2032 Notes were excluded from the diluted EPS calculation for the three- and nine-month periods ended September 30, 2015 and 2014 because we have the right, intention and ability to settle any such future conversions in cash (Note 6).

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Commitments And Contingencies And Other Matters (Narrative) (Details) $ in Thousands	1 Months Ended						9 Months Ended
	Jul. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Apr. 30, 2015 USD ($)	Feb. 28, 2014 vessel	Sep. 30, 2013 USD ($)	Feb. 28, 2013	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 30, 2014 USD ($)
Commitments And Contingencies [Line Items]
Property and equipment							$ 2,515,691	$ 2,241,444
Charter fee deposit							12,544	$ 12,544	$ 12,500
Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment					$ 346,000
Property and equipment							108,900
Long-term purchase commitment percentage					80.00%
Grand Canyon II and III [Member]
Commitments And Contingencies [Line Items]
Term of charter agreement						5 years
Monohull Vessels [Member]
Commitments And Contingencies [Line Items]
Term of charter agreement				4 years
Number of vessels under construction | vessel				2
Topside Equipment [Member]
Commitments And Contingencies [Line Items]
Property and equipment							99,900
Grand Canyon II [Member] | Shipyard [Member]
Commitments And Contingencies [Line Items]
Non-refundable proceeds from charter agreement			$ 4,700
Contract Signing [Member] | Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment percentage					20.00%
Contract Signing [Member] | Q7000 [Member] | Shipyard [Member]
Commitments And Contingencies [Line Items]
Payments to acquire property, plant, and equipment							$ 69,200
Due June 2016 [Member] | Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment percentage		20.00%
Vessel Delivery [Member] | Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment percentage		60.00%
Extend Scheduled Delivery [Member] | Q7000 [Member] | Shipyard [Member]
Commitments And Contingencies [Line Items]
Property and equipment		$ 14,500
Extend Scheduled Delivery [Member] | Contract Signing [Member] | Q7000 [Member] | Shipyard [Member]
Commitments And Contingencies [Line Items]
Payments to acquire property, plant, and equipment	$ 7,300

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Income Taxes

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes 

Our estimated annual effective tax rate, adjusted for discrete tax items, is applied to interim periods’ pretax earnings. We believe that our recorded assets and liabilities are reasonable; however, tax laws and regulations are subject to interpretation and tax litigation is inherently uncertain, and 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, 2015 were 0.9% and 4.0%, respectively. The effective tax rates for the three- and nine-month periods ended September 30, 2014 were 28.3% and 26.5%, respectively. The variance was primarily attributable to the earnings mix between our higher and lower tax rate jurisdictions.

Income taxes have been provided based on the U.S. statutory rate of 35% and at the local statutory rate for each foreign jurisdiction. 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,
	2015		2014		2015		2014
U.S. statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
Foreign provision	(35.3	)	(7.2	)	(32.9	)	(7.8	)
Other	1.2		0.5		1.9		(0.7	)
Effective rate	0.9	%	28.3	%	4.0	%	26.5	%

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Accumulated Other Comprehensive Income (Loss) ("OCI")

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss) ("OCI")

Accumulated Other Comprehensive Income (Loss) (“OCI”)

The components of Accumulated OCI are as follows (in thousands): 

	September 30, 2015			December 31, 2014
Cumulative foreign currency translation adjustment	$	(38,524	)	$	(30,161	)
Unrealized loss on hedges, net (1)	(41,075		)	(32,091		)
Accumulated other comprehensive loss	$	(79,599	)	$	(62,252	)

(1) Amounts relate to foreign currency hedges for the Grand Canyon, the Grand Canyon II and the Grand Canyon III charters as well as interest rate swap contracts for the Term Loan and the Nordea Q5000 Loan, and are net of deferred income taxes totaling $22.3 million at September 30, 2015 and $17.3 million at December 31, 2014 (Note 14).

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Employee Benefit Plans

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Employee Benefit Plans

Employee Benefit Plans

Long-Term Incentive Stock-Based Plan 

As of September 30, 2015, there were 6.2 million shares of our common stock available for issuance under our active long-term incentive stock-based plan, the 2005 Long-Term Incentive Plan, as amended and restated effective May 9, 2012 (the “2005 Incentive Plan”). During the nine-month period ended September 30, 2015, the following grants of share-based awards were made under the 2005 Incentive Plan: 

Date of Grant	Shares	Grant Date Fair Value Per Share		Vesting Period
January 2, 2015 (1)	289,163	$	21.70	33% per year over three years
January 2, 2015 (2)	289,163	$	25.06	100% on January 1, 2018
January 5, 2015 (3)	3,946	$	21.66	100% on January 1, 2017
January 12, 2015 (1)	3,866	$	19.40	33% per year over three years
January 12, 2015 (2)	3,866	$	25.06	100% on January 11, 2018
February 1, 2015 (1)	2,664	$	18.77	33% per year over three years
February 1, 2015 (2)	2,664	$	25.06	100% on January 31, 2018
April 1, 2015 (3)	6,476	$	14.96	100% on January 1, 2017
July 1, 2015 (3)	6,631	$	12.63	100% on January 1, 2017

(1) Reflects the grant of restricted stock to our executive officers and selected management employees.

(2) Reflects the grant of performance share units (“PSUs”) to our executive officers and selected 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 awarded PSUs and the minimum amount being zero. The vested PSUs may be settled in either cash or shares of our common stock at the discretion of the Compensation Committee of our Board of Directors.

(3) Reflects the grant of restricted stock to certain members of our Board of Directors who have made an election to take their quarterly fees in stock in lieu of cash.

Compensation cost for restricted stock is recognized over its vesting period on a straight-line basis. For the three- and nine-month periods ended September 30, 2015, $1.5 million and $4.4 million, respectively, were recognized as stock-based compensation expense related to restricted stock. For the three- and nine-month periods ended September 30, 2014, $1.1 million and $3.6 million, respectively, were recognized as stock-based compensation expense related to restricted stock and restricted stock units.

The estimated fair value of the PSUs on grant date was determined using a Monte Carlo simulation model. Until December 2014, the PSUs were being treated as an equity award. Accordingly, compensation expense associated with the PSUs was fixed, as represented by the number of PSUs multiplied by their respective grant date fair value, and the fixed amount was amortized on a straight-line basis over the three-year vesting period. In connection with the vesting of the 2012 PSU awards that occurred in January 2015, the decision was made by the Compensation Committee of our Board of Directors to settle these PSUs with a cash payment of $4.5 million (rather than an equivalent number of shares of our common stock, which was the default provision of the PSU awards). Accordingly, PSUs are now accounted for as a liability plan and changes in fair value of the awards are recognized in earnings. To the extent the recognized fair value of the modified liability awards is less than the recognized compensation cost associated with the grant date fair value of the original equity awards, the higher amount is recorded in stock-based compensation expense. The amount of cumulative compensation expense recognized in excess of the fair value of the modified liability awards is recorded in equity. For the three-month period ended September 30, 2015, $0.6 million was recognized as stock-based compensation expense related to PSUs. For the nine-month period ended September 30, 2015, we recorded a net reduction of $0.3 million of previously recognized compensation cost to reflect the estimated fair value of unvested PSUs as of September 30, 2015. For the three- and nine-month periods ended September 30, 2014, $0.6 million and $1.6 million, respectively, were recognized as stock-based compensation expense related to PSUs. The liability balance for the PSU awards was $0.3 million at September 30, 2015 and $7.9 million at December 31, 2014.

Long-Term Incentive Cash Plans 

We have certain long-term incentive cash plans (the “LTI Cash Plans”) that provide long-term cash-based compensation to eligible employees. Cash awards historically have been both fixed sum amounts payable (for non-executive management only) as well as cash awards indexed to our common stock with the payment amount at each vesting date fluctuating based on the performance of our common stock (for both executive and non-executive management). Payment amounts under these awards are calculated based on the ratio of the average stock price during the applicable measurement period over the original base price determined by the Compensation Committee of our Board of Directors at the time of the award. Cash payments under these awards are made each year during the vesting period on the anniversary date of the award. Cash awards granted since 2012 have a vesting period of three years while those granted prior to 2012 have a vesting period of five years. The LTI Cash Plans are considered liability plans and as such are re-measured to fair value each reporting period with corresponding changes in the liability amount being reflected in our results of operations.

The cash awards granted under the LTI Cash Plans to our executive officers and selected management employees totaled $8.9 million in 2014. No long-term incentive cash awards were granted in 2015. For the three- and nine-month periods ended September 30, 2015, we recorded reductions of $1.2 million and $3.7 million, respectively, of previously recognized compensation expense associated with the cash awards issued pursuant to the LTI Cash Plans, reflecting the effect the decrease in our stock price since December 31, 2014 had on the value of our liability plan. For the nine-month period ended September 30, 2014, total compensation expense associated with the cash awards issued pursuant to the LTI Cash Plans was $5.4 million. Overall, compensation expense recorded for the three-month period ended September 30, 2014 was immaterial reflecting the effect the decrease in our stock price at the end of September 30, 2014 had on the value of our liability plan. The liability balance for the cash awards issued under the LTI Cash Plans was $0.1 million at September 30, 2015 and $12.8 million at December 31, 2014.

Employee Stock Purchase Plan 

We also have an employee stock purchase plan (the “ESPP”). The ESPP has 1.5 million shares authorized for issuance, of which 0.9 million shares were available for issuance as of September 30, 2015. The total value of the ESPP awards is calculated using the component approach where each award is computed as the sum of 15% of a share of non-vested stock, a call option on 85% of a share of non-vested stock, and a put option on 15% of a share of non-vested stock. Share-based compensation expense with respect to the ESPP was $0.3 million and $0.9 million, respectively, for the three- and nine-month periods ended September 30, 2015. For the three- and nine-month periods ended September 30, 2014, share-based compensation expense with respect to the ESPP was $0.3 million and $0.7 million, respectively.

For more information regarding our employee benefit plans, including our long-term incentive stock-based and cash plans and our employee stock purchase plan, see Note 8 to our 2014 Form 10-K.

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Derivative Instruments And Hedging Activities (Derivatives Designated As Hedging Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Asset derivatives designated as hedging instruments	$ 0	$ 369
Liability derivatives designated as hedging instruments	65,550	50,989
Other Assets, Net [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives designated as hedging instruments	0	369
Accrued Liabilities [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives designated as hedging instruments	2,347	561
Accrued Liabilities [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives designated as hedging instruments	20,443	12,661
Other Noncurrent Liabilities [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives designated as hedging instruments	824	0
Other Noncurrent Liabilities [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives designated as hedging instruments	$ 41,936	$ 37,767

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Derivative Instruments And Hedging Activities (Loss Reclassified From Accumulated OCI Into Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from accumulated OCI into earnings	$ (4,255)	$ (812)	$ (9,186)	$ (2,080)
Foreign Exchange Contracts [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from accumulated OCI into earnings	(3,433)	(215)	(7,828)	(646)
Interest Rate Swaps [Member] | Net Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from accumulated OCI into earnings	$ (822)	$ (597)	$ (1,358)	$ (1,434)

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Derivative Instruments And Hedging Activities (Narrative) (Details) NOK in Millions, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2013 USD ($)	Feb. 28, 2013 USD ($)	Feb. 28, 2013 NOK	Jan. 31, 2013 USD ($)	Jan. 31, 2013 NOK
Derivative [Line Items]
Loss on foreign currency cash flow hedge ineffectiveness	$ 0.4	$ 3.6
Future losses to be re-classified to earnings		$ 13.4
Grand Canyon [Member]
Derivative [Line Items]
Derivative, notional amount							$ 104.6	NOK 591.3
Grand Canyon II [Member]
Derivative [Line Items]
Derivative, notional amount					$ 100.4	NOK 594.7
Grand Canyon III [Member]
Derivative [Line Items]
Derivative, notional amount					$ 98.8	NOK 595.0
Term Loan Maturing June 2018 [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, notional amount				$ 148.1
Nordea Q5000 Loan [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, notional amount			$ 187.5

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Company Overview (Details)	1 Months Ended	9 Months Ended
	Feb. 28, 2014 vessel	Sep. 30, 2015 segment vessel
Segment Reporting Information [Line Items]
Number of reportable segments | segment		3
Robotics [Member]
Segment Reporting Information [Line Items]
Number of chartered vessels		5
Monohull Vessels [Member]
Segment Reporting Information [Line Items]
Number of vessels under construction	2
Monohull Vessels [Member] | Well Intervention [Member]
Segment Reporting Information [Line Items]
Number of vessels under construction		2

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Accumulated Other Comprehensive Income (Loss) ("OCI") (Components Of Accumulated OCI) (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014
Equity [Abstract]
Cumulative foreign currency translation adjustment		$ (38,524)	$ (30,161)
Unrealized loss on hedges, net	[1]	(41,075)	(32,091)
Accumulated other comprehensive loss		(79,599)	(62,252)
Deferred tax asset, other comprehensive loss		$ 22,300	$ 17,300

[1] Amounts relate to foreign currency hedges for the Grand Canyon, the Grand Canyon II and the Grand Canyon III charters as well as interest rate swap contracts for the Term Loan and the Nordea Q5000 Loan, and are net of deferred income taxes totaling $22.3 million at September 30, 2015 and $17.3 million at December 31, 2014 (Note 14).

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Basis Of Presentation And New Accounting Standards (Policies)

9 Months Ended

Sep. 30, 2015

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 wholly and majority owned subsidiaries (collectively, “Helix” or the “Company”). Unless the context indicates otherwise, the terms “we,” “us” and “our” in this report refer collectively to Helix and its wholly and majority owned 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.

The accompanying condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) and are consistent in all material respects with those applied in our 2014 Annual Report on Form 10-K (“2014 Form 10-K”). 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. The operating results for the three- and nine-month periods ended September 30, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. Our balance sheet as of December 31, 2014 included herein has been derived from the audited balance sheet as of December 31, 2014 included in our 2014 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 2014 Form 10-K.

We have made all adjustments (which were normal recurring adjustments) that we believe are necessary for a fair presentation of the condensed consolidated balance sheets, statements of operations, statements of comprehensive income (loss), and statements of cash flows, as applicable. Our operating results for the nine-month period ended September 30, 2015 included an out-of-period adjustment to correct an error related to a well intervention project performed in 2014 in which our revenues included certain income tax withholding payments made on our behalf and which now will have to be refunded to the counterparty. This adjustment affects our 2015 operating results by reducing our net revenues by $2.5 million and increasing our net loss by $1.7 million. The amounts were not deemed material with respect to prior year or the anticipated results and the trend of earnings for fiscal year 2015.

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

In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” This ASU provides a single five-step approach to account for revenue arising from contracts with customers. The ASU requires an entity to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This revenue standard was originally effective prospectively for annual reporting periods beginning after December 15, 2016, including interim periods. In August 2015, the FASB issued ASU No. 2015-14 to defer the effective date of ASU No. 2014-09 by one year to December 15, 2017. Adoption as of the original effective date is permitted. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption through a cumulative adjustment. We are currently evaluating which transition approach to use and the potential impact the adoption of this standard may have on our consolidated financial statements.

In April 2015, the FASB issued ASU No. 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” This ASU requires that debt issuance costs related to a recognized debt liability be reported on the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The guidance is effective retrospectively beginning in the first quarter of fiscal 2017 and early adoption is permitted. We do not expect this guidance to materially affect our balance sheets as amounts will be reclassified from long-term assets to partial offsets to long-term debt. The guidance will not affect our statements of operations or statements of cash flows.

In July 2015, the FASB issued ASU No. 2015-11, “Simplifying the Measurement of Inventory.” This ASU requires inventory that is measured using first-in, first-out or average cost method to be recorded at the lower of cost and net realizable value. The guidance is effective prospectively for annual reporting periods beginning after December 15, 2016, including interim periods. Early adoption is permitted. We do not expect this guidance to materially affect our consolidated financial statements.

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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Effective Income Tax Rate Reconciliation

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,
	2015		2014		2015		2014
U.S. statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
Foreign provision	(35.3	)	(7.2	)	(32.9	)	(7.8	)
Other	1.2		0.5		1.9		(0.7	)
Effective rate	0.9	%	28.3	%	4.0	%	26.5	%

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Income Taxes (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Effective tax rate	0.90%	28.30%	4.00%	26.50%
U.S. statutory rate	35.00%	35.00%	35.00%	35.00%

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Equity Investments (Distributions From Equity Investments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]
Distributions from equity investments	$ 1,760	$ 700	$ 5,300	$ 5,750
Deepwater Gateway, L.L.C. [Member]
Schedule of Equity Method Investments [Line Items]
Distributions from equity investments	1,200	500	3,900	4,250
Independence Hub, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Distributions from equity investments	$ 560	$ 200	$ 1,400	$ 1,500

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Condensed Consolidated Statements Of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income, including noncontrolling interests	$ 9,880	$ 75,586	$ 26,887	$ 187,590
Other comprehensive loss, net of tax:
Unrealized loss on hedges arising during the period	(14,779)	(9,209)	(23,144)	(9,283)
Reclassification adjustments for loss included in net income	4,255	812	9,186	2,080
Income taxes on unrealized loss on hedges	3,772	2,939	4,974	2,521
Unrealized loss on hedges, net of tax	(6,752)	(5,458)	(8,984)	(4,682)
Foreign currency translation loss	(10,383)	(15,706)	(8,363)	(7,428)
Other comprehensive loss, net of tax	(17,135)	(21,164)	(17,347)	(12,110)
Comprehensive income			9,540	175,480
Less comprehensive income applicable to noncontrolling interests			0	(503)
Comprehensive income (loss) applicable to common shareholders	$ (7,255)	$ 54,422	$ 9,540	$ 174,977

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Statement Of Cash Flow Information

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Information [Abstract]

Statement Of Cash Flow Information

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,
	2015		2014
Interest paid, net of interest capitalized	$	11,823	$	11,671
Income taxes paid	$	16,008	$	53,390

Our non-cash investing activities include accruals for property and equipment capital expenditures. These non-cash investing accruals totaled $20.4 million and $14.1 million as of September 30, 2015 and December 31, 2014, respectively. Additionally, our investing activities for the nine-month period ended September 30, 2014 included a $30 million non-cash transaction related to the promissory note we received in connection with the sale of our Ingleside spoolbase in January 2014 (Note 3).

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Business Segment Information (Summary Of Intercompany Segment Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Net revenues	$ (182,462)	$ (340,837)	$ (538,119)	$ (899,996)
Intercompany Elimination [Member]
Segment Reporting Information [Line Items]
Net revenues	14,876	20,193	42,895	57,093
Well Intervention [Member] | Intercompany Elimination [Member]
Segment Reporting Information [Line Items]
Net revenues	7,324	8,635	18,687	22,052
Robotics [Member] | Intercompany Elimination [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 7,552	$ 11,558	$ 24,208	$ 35,041

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Accumulated Other Comprehensive Income (Loss) ("OCI") (Tables)

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Components Of Accumulated OCI

The components of Accumulated OCI are as follows (in thousands): 

	September 30, 2015			December 31, 2014
Cumulative foreign currency translation adjustment	$	(38,524	)	$	(30,161	)
Unrealized loss on hedges, net (1)	(41,075		)	(32,091		)
Accumulated other comprehensive loss	$	(79,599	)	$	(62,252	)

(1) Amounts relate to foreign currency hedges for the Grand Canyon, the Grand Canyon II and the Grand Canyon III charters as well as interest rate swap contracts for the Term Loan and the Nordea Q5000 Loan, and are net of deferred income taxes totaling $22.3 million at September 30, 2015 and $17.3 million at December 31, 2014 (Note 14).

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Statement Of Cash Flow Information (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Supplemental Cash Flow Information [Abstract]
Interest paid, net of interest capitalized	$ 11,823	$ 11,671
Income taxes paid	$ 16,008	$ 53,390

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Derivative Instruments And Hedging Activities

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments And Hedging Activities

Derivative Instruments and Hedging Activities

Our operations are exposed to market risk associated with interest rates and foreign currency exchange rates. Our risk management activities involve the use of derivative financial instruments to hedge the impact of market risk exposure related to variable interest rates and foreign currency exchange rates. All derivatives are reflected in the accompanying condensed consolidated balance sheets at fair value.

We engage solely in cash flow hedges. Hedges of cash flow exposure are entered into to hedge a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability. Changes in the fair value of derivatives that are designated as cash flow hedges are deferred to the extent that the hedges are effective. These fair value changes are recorded as a component of Accumulated OCI (a component of shareholders’ equity) until the hedged transactions occur and are recognized in earnings. The ineffective portion of changes in the fair value of cash flow hedges is recognized immediately in earnings. In addition, any change in the fair value of a derivative that does not qualify for hedge accounting is recorded in earnings in the period in which the change occurs.

For additional information regarding our accounting for derivatives, see Notes 2 and 15 to our 2014 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 September 2013, we entered into various interest rate swap contracts to fix the interest rate on $148.1 million of our Term Loan borrowings (Note 6). These contracts, which are settled monthly, began in October 2013 and extend through October 2016. Additionally, in June 2015 we entered into various interest rate swap contracts to fix the interest rate on $187.5 million of our Nordea Q5000 Loan borrowings (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 hedge accounting treatment. Changes in the fair value of interest rate swaps are deferred to the extent the swaps are effective. These changes are recorded as a component of Accumulated OCI until the anticipated interest is recognized as interest expense. The ineffective portion of the interest rate swaps, if any, is recognized immediately in earnings within the line titled “Net interest expense.” The amount of ineffectiveness associated with our interest rate swap contracts was immaterial for all periods presented.

Foreign Currency Exchange Rate Risk

Because we operate in various regions in 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 January 2013, we entered into foreign currency exchange contracts to hedge through September 2017 the foreign currency exposure associated with the Grand Canyon charter payments ($104.6 million) denominated in Norwegian kroner (NOK591.3 million). In February 2013, we entered into similar foreign currency exchange contracts to hedge our foreign currency exposure with respect to the Grand Canyon II and Grand Canyon III charter payments ($100.4 million and $98.8 million, respectively) denominated in Norwegian kroner (NOK594.7 million and NOK595.0 million, respectively), through July 2019 and February 2020, respectively.

Quantitative Disclosures Relating to Derivative Instruments 

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

	September 30, 2015			December 31, 2014
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Asset Derivatives:
Interest rate swaps	Other assets, net	$	—	Other assets, net	$	369
		$	—		$	369
Liability Derivatives:
Foreign exchange contracts	Accrued liabilities	$	20,443	Accrued liabilities	$	12,661
Interest rate swaps	Accrued liabilities	2,347		Accrued liabilities	561
Foreign exchange contracts	Other non-current liabilities	41,936		Other non-current liabilities	37,767
Interest rate swaps	Other non-current liabilities	824		Other non-current liabilities	—
		$	65,550		$	50,989

For the three- and nine-month periods ended September 30, 2015, we recorded losses of $0.4 million and $3.6 million, respectively, in “Other expense, net” in the accompanying condensed consolidated statement of operations related to ineffectiveness associated with our foreign currency hedges with respect to the Grand Canyon III charter payments as a result of the deferral of the vessel’s delivery until February 2016. Ineffectiveness associated with our cash flow hedges was immaterial for the three- and nine-month periods ended September 30, 2014. The following tables present the impact that derivative instruments designated as cash flow hedges had on our Accumulated OCI (net of tax) and our condensed consolidated statements of operations (in thousands). We estimate that as of September 30, 2015, $13.4 million of losses in Accumulated OCI associated with our derivatives is expected to be reclassified into earnings within the next 12 months.

	Gain (Loss) Recognized in OCI on Derivatives, Net of Tax
	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Foreign exchange contracts	$	(5,777	)	$	(5,713	)	$	(7,136	)	$	(4,823	)
Interest rate swaps	(975		)	255			(1,848		)	141
	$	(6,752	)	$	(5,458	)	$	(8,984	)	$	(4,682	)

	Location of Loss Reclassified from Accumulated OCI into Earnings	Loss Reclassified from Accumulated OCI into Earnings
		Three Months Ended September 30,						Nine Months Ended September 30,
		2015			2014			2015			2014
Foreign exchange contracts	Cost of sales	$	(3,433	)	$	(215	)	$	(7,828	)	$	(646	)
Interest rate swaps	Net interest expense	(822		)	(597		)	(1,358		)	(1,434		)
		$	(4,255	)	$	(812	)	$	(9,186	)	$	(2,080	)