Entity Central Index Key Document and Entity Information Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Investments in subsidiaries. Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] CURRENT ASSETS: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable—net Accounts Receivable Net Current Contract revenues in excess of billings Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year Inventories Inventory Net Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current PROPERTY AND EQUIPMENT—Net Property Plant And Equipment Net GOODWILL AND OTHER INTANGIBLE ASSETS—Net Intangible Assets Net Including Goodwill INVENTORIES—Noncurrent Inventory Noncurrent INVESTMENTS IN JOINT VENTURES Investments In Affiliates Subsidiaries Associates And Joint Ventures OTHER Other Assets Noncurrent TOTAL Assets LIABILITIES AND EQUITY Liabilities And Stockholders Equity [Abstract] CURRENT LIABILITIES: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expenses Accrued Liabilities Current Billings in excess of contract revenues Billings In Excess Of Cost Current portion of long term debt Long Term Debt Current Total current liabilities Liabilities Current 7 3/8% SENIOR NOTES Senior Long Term Notes REVOLVING CREDIT FACILITY Line Of Credit NOTES PAYABLE Long Term Notes Payable DEFERRED INCOME TAXES Deferred Tax Liabilities Noncurrent OTHER Other Liabilities Noncurrent Total liabilities Liabilities COMMITMENTS AND CONTINGENCIES (Note 9) Commitments And Contingencies EQUITY: Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract] Common stock—$.0001 par value; 90,000 authorized, 60,447 and 60,170 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively. Common Stock Value Treasury stock, at cost Treasury Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated deficit Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Total equity Stockholders Equity TOTAL Liabilities And Stockholders Equity Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Equity in loss of joint venture through business units. Income (loss) from equity investments in subsidiaries. Income Statement [Abstract] Contract revenues Revenues Costs of contract revenues Contract Revenue Cost Gross profit Gross Profit General and administrative expenses General And Administrative Expense Impairment of goodwill Goodwill Impairment Loss (Gain) loss on sale of assets—net Gains Losses On Sales Of Assets Operating income Operating Income Loss Interest expense—net Interest Income Expense Net Equity in loss of joint ventures Equity In Loss Of Joint Venture Through Business Units Gain on bargain purchase acquisition Business Combination Bargain Purchase Gain Recognized Amount Other income (expense) Foreign Currency Transaction Gain Loss Before Tax Income (loss) from continuing operations before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax (provision) benefit Income Tax Expense Benefit Income (loss) from continuing operations Income Loss From Continuing Operations Loss from discontinued operations, net of income taxes Income Loss From Discontinued Operations Net Of Tax Net income (loss) Net Income Loss Basic earnings (loss) per share attributable to continuing operations Income Loss From Continuing Operations Per Basic Share Basic loss per share attributable to discontinued operations, net of tax Income Loss From Discontinued Operations Net Of Tax Per Basic Share Basic loss per share Earnings Per Share Basic Basic weighted average shares Weighted Average Number Of Shares Outstanding Basic Diluted earnings (loss) per share attributable to continuing operations Income Loss From Continuing Operations Per Diluted Share Diluted loss per share attributable to discontinued operations, net of tax Income Loss From Discontinued Operations Net Of Tax Per Diluted Share Diluted loss per share Earnings Per Share Diluted Diluted weighted average shares Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net income (loss) Currency translation adjustment—net of tax Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax Net unrealized gain on derivatives—net of tax Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Other comprehensive loss—net of tax Other Comprehensive Income Loss Net Of Tax Comprehensive loss Comprehensive Income Net Of Tax Currency translation adjustment, tax Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax Net unrealized (gain) loss on derivatives-net of tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Statement Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Treasury Stock [Member] Treasury Stock [Member] Additional Paid-In Capital [Member] Additional Paid In Capital [Member] Accumulated Deficit [Member] Retained Earnings [Member] Accumulated Other Comprehensive Loss [Member] Accumulated Other Comprehensive Income [Member] Noncontrolling Interests [Member] Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] BALANCE - value BALANCE - shares Shares Issued Share-based compensation, Value Stock Issued During Period Value Share Based Compensation Share-based compensation, Shares Stock Issued During Period Shares Share Based Compensation Vesting of restricted stock units, including impact of shares withheld for taxes, value Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Vesting of restricted stock units, including impact of shares withheld for taxes, shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Exercise of options and purchases from employee stock plans, Value Stock Issued During Period Value Stock Options Exercised Exercise of options and purchases from employee stock plans, Shares Stock Issued During Period Shares Stock Options Exercised Excess income tax benefit from share-based compensation Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net Distributions paid to noncontrolling interests Noncontrolling Interest Increase From Business Combination Purchase of treasury stock, value Treasury Stock Value Acquired Cost Method Purchase of treasury stock, shares Treasury Stock Shares Acquired Total other comprehensive income (loss) BALANCE - value BALANCE - shares Cash distributions from joint ventures. Gain (Loss) On Adjustment Of Contingent Consideration Excess tax benefit (expense) from share based compensation operating activities. Increase decrease in costs in excess of billings on uncompleted contracts or programs expected to be collected within one year. Increase decrease in billings in excess of cost. Payments on vendor performance obligations. Proceeds from equipment debt. Excess tax benefit (expense) from share based compensation financing activities. Net change in accounts with affiliates, in finance activities. Capital contributions. Net change in accounts with affiliates Statement Of Cash Flows [Abstract] OPERATING ACTIVITIES: Net Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash flows used in operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation and amortization Depreciation Depletion And Amortization Equity in loss of joint ventures Income Loss From Equity Method Investments Cash distributions from joint ventures Cash Distributions From Joint Ventures Deferred income taxes Deferred Income Tax Expense Benefit (Gain) loss on sale of assets Gain on bargain purchase acquisition Gain on adjustment of contingent consideration Gain Loss On Adjustment Of Contingent Consideration Amortization of deferred financing fees Amortization Of Financing Costs Unrealized net gain from mark-to-market valuations of derivatives Unrealized Gain Loss On Derivatives Unrealized foreign currency gain Foreign Currency Transaction Gain Loss Unrealized Share-based compensation expense Share Based Compensation Excess income tax benefit from share-based compensation Excess Tax Benefit Expense From Share Based Compensation Operating Activities Changes in assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Contract revenues in excess of billings Increase Decrease In Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year Inventories Increase Decrease In Inventories Prepaid expenses and other current assets Increase Decrease In Prepaid Expense Accounts payable and accrued expenses Increase Decrease In Accounts Payable And Accrued Liabilities Billings in excess of contract revenues Increase Decrease In Billings In Excess Of Cost Other noncurrent assets and liabilities Increase Decrease In Other Noncurrent Assets And Liabilities Net Net cash flows provided by (used in) operating activities of continuing operations Net Cash Provided By Used In Operating Activities Continuing Operations Net cash flows used in operating activities of discontinued operations Cash Provided By Used In Operating Activities Discontinued Operations Cash provided by (used in) operating activities Net Cash Provided By Used In Operating Activities INVESTING ACTIVITIES: Net Cash Provided By Used In Investing Activities [Abstract] Purchases of property and equipment Payments To Acquire Property Plant And Equipment Proceeds from dispositions of property and equipment Proceeds From Sale Of Property Plant And Equipment Payments on vendor performance obligations (Note 9) Payments On Vendor Performance Obligations Payments for acquisitions of businesses Payments To Acquire Business Two Net Of Cash Acquired Net cash flows used in investing activities of continuing operations Net Cash Provided By Used In Investing Activities Continuing Operations Net cash flows provided by investing activities of discontinued operations Cash Provided By Used In Investing Activities Discontinued Operations Cash used in investing activities Net Cash Provided By Used In Investing Activities Property and equipment purchased on capital leases and equipment notes. Non cash investing and financing activities purchase of noncontrolling interest Non cash investing and financing activities property and equipment purchased on notes payable. FINANCING ACTIVITIES: Net Cash Provided By Used In Financing Activities [Abstract] Deferred financing fees Payment Of Financing And Stock Issuance Costs Repayments of long term note payable Repayments Of Long Term Debt Taxes paid on settlement of vested share awards Payments Related To Tax Withholding For Share Based Compensation Repayments of term loan facility Repayments Of Short Term Debt Repayments of equipment debt Repayments Of Long Term Capital Lease Obligations Proceeds from equipment debt Proceeds From Equipment Debt Purchase of noncontrolling interest Payments To Minority Shareholders Exercise of options and purchases from employee stock plans Proceeds From Stock Options Exercised Excess income tax benefit from share-based compensation Excess Tax Benefit Expense From Share Based Compensation Financing Activities Treasury stock Payments For Repurchase Of Common Stock Borrowings under revolving loans Proceeds From Long Term Lines Of Credit Repayments of revolving loans Repayments Of Long Term Lines Of Credit Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities Effect of foreign currency exchange rates on cash and cash equivalents Effect Of Exchange Rate On Cash And Cash Equivalents Net decrease in cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental Cash Flow Information Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Net Cash paid (refunded) for income taxes Income Taxes Paid Net Non-cash Investing and Financing Activities Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Property and equipment purchased but not yet paid Capital Expenditures Incurred But Not Yet Paid Property and equipment purchased on capital leases and equipment notes Property And Equipment Purchased On Capital Leases And Equipment Notes Purchase of noncontrolling interest Non Cash Investing And Financing Activities Purchase Of Noncontrolling Interest Property and equipment purchased on notes payable Non Cash Investing And Financing Activities Property And Equipment Purchased On Notes Payable Organization Consolidation And Presentation Of Financial Statements [Abstract] Basis of presentation Basis Of Presentation And Significant Accounting Policies [Text Block] Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Receivables [Abstract] Accounts Receivables And Contracts In Progress Loans Notes Trade And Other Receivables Disclosure [Text Block] Payables And Accruals [Abstract] Accrued Expenses Accounts Payable And Accrued Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] Long-Term Debt Long Term Debt [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Impairment Of Goodwill Asset Impairment Charges [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Share-based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments And Contingencies Commitments And Contingencies Disclosure [Text Block] Equity Method Investments And Joint Ventures [Abstract] Investments Cost And Equity Method Investments Disclosure [Text Block] Business Combinations [Abstract] Business Dispositions Business Acquisition Integration Restructuring And Other Related Costs [Text Block] Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Condensed Financial Information Of Parent Company Only Disclosure [Abstract] Subsidiary Guarantors Condensed Financial Information Of Parent Company Only Disclosure [Text Block] Computations For Basic And Diluted Earnings Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Schedule Of Accounts Receivable Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Components Of Contracts In Progress Costs In Excess Of Billings And Billings In Excess Of Costs Table [Text Block] Accrued Expenses Schedule Of Accrued Liabilities Table [Text Block] Schedule of Goodwill Schedule Of Goodwill [Text Block] Schedule of Fair Values Of Financial Instruments and Nonfinancial Assets and Liabilities Measured (Table) (Text Block) Schedule Of Fair Values Of Financial Instruments And Nonfinancial Assets And Liabilities Measured At The Reporting Date Schedule Of Fair Values Of Financial Instruments And Nonfinancial Assets And Liabilities Measured Table [Text Block] Schedule Fair Value Measurements Balance Sheet Location Fair Value By Balance Sheet Grouping [Text Block] Fair Value, Assets Measured On Recurring Basis, Unobservable Input Reconciliation Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Changes In Components Of Accumulated Other Comprehensive Income (Table) (Text Block) Changes In Components Of Accumulated Other Comprehensive Loss Changes In Components Of Accumulated Other Comprehensive Income Table [Text Block] Adjustments reclassified from accumulated other comprehensive income to earnings. Adjustments Reclassified From Accumulated Other Comprehensive Loss To Earnings Adjustments Reclassified From Accumulated Other Comprehensive Income To Earnings Table [Text Block] Schedule Of Discontinued Operation Schedule Of Disposal Groups Including Discontinued Operations Income Statement Balance Sheet And Additional Disclosures [Text Block] Segment Reporting By Segment Schedule Of Segment Reporting Information By Segment [Text Block] Condensed Consolidating of Balance Sheet Schedule Of Condensed Balance Sheet Table [Text Block] Schedule of condensed consolidating operations and comprehensive income. Schedule Of Condensed Consolidating Operations And Comprehensive Income Schedule Of Condensed Consolidating Operations And Comprehensive Income Table [Text Block] Condensed Cash Flow Statement Schedule Of Condensed Cash Flow Statement Table [Text Block] Equipment-related costs, percentage of costs of contract revenue. Range Range [Axis] Range Member Range [Member] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Longterm Debt Type Longterm Debt Type [Axis] Longterm Debt Type Longterm Debt Type [Domain] Promissory Note [Member] Loans Payable [Member] Legal Entity Legal Entity [Axis] Entity Entity [Domain] Terra Contracting Services, LLC. Terra Contracting Services [Member] Terra Contracting Services L L C [Member] Average equipment-related costs of total costs of contract revenue Equipment Related Costs Percentage Of Costs Of Contract Revenue Number of reportable segments Number Of Reportable Segments Number of operating Segments Number Of Operating Segments Fair value of debt Debt Instrument Fair Value Shares excluded from computation of diluted earnings per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Income (loss) from continuing operations Loss on discontinued operations, net of income taxes Weighted-average common shares outstanding - basic Effect of stock options and restricted stock units Weighted Average Number Diluted Shares Outstanding Adjustment Weighted-average common shares outstanding - diluted Earnings (loss) per share from continuing operations - basic Earnings (loss) per share from continuing operations - diluted Accounts receivable, noncurrent and contract receivable retainage. Schedule Of Accounts Notes Loans And Financing Receivable [Table] Schedule Of Accounts Notes Loans And Financing Receivable [Table] Contract receivable type. Contract Receivable Type Contract Receivable Type [Axis] Contract receivable type. Contract Receivable Type Contract Receivable Type [Domain] Completed contracts. Completed Contracts [Member] Completed Contracts [Member] Contracts in progress. Contracts In Progress [Member] Contracts In Progress [Member] Accounts Receivable [Line Items] Accounts Notes And Loans Receivable [Line Items] Completed contracts Accounts Receivable Billed For Long Term Contracts Or Programs Retainage Contract Receivable Retainage Accounts receivable, gross Accounts Receivable Gross Allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Total accounts receivable-net Accounts Receivable Net Current portion of accounts receivable—net Long-term accounts receivable and retainage Accounts Receivable Noncurrent And Contract Receivable Retainage Costs and earnings for contracts in progress. Billings for contracts in progress. Costs and earnings in excess of billings for contracts in progress. Costs and earnings in excess of billings for completed contracts. Billings in excess of costs and earnings:, amounts billed. Billings in excess of costs and earnings, costs and earnings for contracts in progress. Costs and earnings in excess of billings. Costs And Earnings In Excess Of Billings [Member] Costs And Earnings In Excess Of Billings [Member] Billings in excess of costs and earnings. Billings In Excess Of Costs And Earnings [Member] Billings In Excess Of Costs And Earnings [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Costs and earnings for contracts in progress Costs And Earnings For Contracts In Progress Amounts billed Billings For Contracts In Progress Costs and earnings in excess of billings for contracts in progress Costs And Earnings In Excess Of Billings For Contracts In Progress Costs and earnings in excess of billings for completed contracts Costs And Earnings In Excess Of Billings For Completed Contracts Total contract revenues in excess of billings Billings in excess of costs and earnings, Amounts billed Billings In Excess Of Costs And Earnings Amounts Billed Billings in excess of costs and earnings, Costs and earnings for contracts in progress Billings In Excess Of Costs And Earnings Costs And Earnings For Contracts In Progress Total billings in excess of contract revenues Retained earnings accumulated deficit in joint ventures. Accrued liabilities adjustments under percentage of completion method. Fuel hedge contracts. Insurance Accrued Insurance Current Accumulated deficit in joint ventures Retained Earnings Accumulated Deficit In Joint Ventures Payroll and employee benefits Employee Related Liabilities Current Income and other taxes Taxes Payable Current Interest Interest Payable Current Percentage of completion adjustment Accrued Liabilities Adjustments Under Percentage Of Completion Method Fuel hedge contracts Fuel Hedge Contracts Other Other Accrued Liabilities Current Total accrued expenses Line of credit facility optional increase capacity. Net book value of related assets. Debt Instrument [Table] Debt Instrument [Table] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Multicurrency. Multicurrency [Member] Multicurrency [Member] Swingline Loans. Swingline Loans [Member] Swingline Loans [Member] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] LIBOR Rate [Member] London Interbank Offered Rate L I B O R [Member] Base Rate [Member] Base Rate [Member] Term loan facility. Term Loan Facility [Member] Term Loan Facility [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument Name Debt Instrument Name [Domain] Seven point three seven five senior notes due in two thousand nineteen. 7.375% Senior Notes Due In 2019 [Member] Seven Point Three Seven Five Senior Notes Due In Two Thousand Nineteen [Member] Debt Instrument Redemption Period Debt Instrument Redemption Period [Axis] Debt Instrument Redemption Period Debt Instrument Redemption Period [Domain] If redeemed in 2015. If Redeemed In 2015 [Member] If Redeemed In2015 [Member] If Redeemed in 2016. If Redeemed In 2016 [Member] If Redeemed In2016 [Member] If redeemed after 2016. If Redeemed After 2016 [Member] If Redeemed After2016 [Member] Vessels and ancillary equipment. Vessels and Ancillary Equipment [Member] Vessels And Ancillary Equipment [Member] Five point seven point senior notes due two thousand twenty three. 5.75% Senior Notes Due In 2023 [Member] Five Point Seven Point Senior Notes Due Two Thousand Twenty Three [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Line of credit facility, maximum borrowing capacity Line Of Credit Facility Maximum Borrowing Capacity Line of credit facility optional increase capacity Line Of Credit Facility Optional Increase Capacity Net book value of related assets Net Book Value Of Related Assets Revolving credit facility, interest rate description Debt Instrument Description Of Variable Rate Basis Debt Instrument, Basis Spread on Variable Rate Debt Instrument Basis Spread On Variable Rate1 Net leverage ratio. Fixed charge coverage ratio. Net Leverage Ratio Net Leverage Ratio Fixed Charge Coverage Ratio Fixed Charge Coverage Ratio Line of Credit Facility, Amount Outstanding Letters of credit outstanding Letters Of Credit Outstanding Amount Letter of credit remaining borrowing capacity Line Of Credit Facility Remaining Borrowing Capacity Borrowed aggregate principal amount. Debt instrument, face amount Debt Instrument Face Amount Borrowed aggregate principal amount Borrowed Aggregate Principal Amount Term loan facility bear interest fixed rate. Term Loan number of years Debt Instrument Term Term loan facility bear interest fixed rate Term Loan Facility Bear Interest Fixed Rate Debt Instrument, Interest Rate, Increase (Decrease) Debt Instrument Interest Rate Increase Decrease Percentage of principal to be repaid yearly during first two years of term. Percentage of principal to be repaid yearly during third and fourth years of term. Percentage of principal to be repaid during fifth year of term. Percentage of principal to be repaid yearly during first two years of term Percentage Of Principal To Be Repaid Yearly During First Two Years Of Term Percentage of principal to be repaid yearly during third and fourth years of term Percentage Of Principal To Be Repaid Yearly During Third And Fourth Years Of Term Percentage of principal to be repaid during fifth year of term Percentage Of Principal To Be Repaid During Fifth Year Of Term Stated interest rate Debt Instrument Interest Rate Stated Percentage Maturity date Debt Instrument Maturity Date Debt Instrument, Redemption Price, Percentage Debt Instrument Redemption Price Percentage Lease expiration year. Purchases of property and equipment Operating leases expiration year Lease Expiration Year Long-term Debt, Current Maturities Long-term Debt, Excluding Current Maturities Long Term Debt Noncurrent Schedule Of Goodwill [Table] Schedule Of Goodwill [Table] Statement Business Segments Statement Business Segments [Axis] Segment Segment [Domain] Dredging segment. Dredging Segment [Member] Dredging Segment [Member] Environmental and remediation segment. Environmental & Remediation Segment [Member] Environmental And Remediation Segment [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill, Beginning Balance Goodwill Impairment of goodwill Goodwill, Ending Balance Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Derivative Instruments Gain Loss By Hedging Relationship Derivative Instruments Gain Loss By Hedging Relationship [Axis] Hedging Relationship Hedging Relationship [Domain] Fuel hedge contracts. Fuel Hedge Contracts [Member] Fuel Hedge Contracts [Member] Fair Value By Fair Value Hierarchy Level Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Measurements Fair Value Hierarchy Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value Inputs Level1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value Inputs Level2 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value Inputs Level3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value, Net Asset (Liability) Fair Value Net Asset Liability Number of outstanding contracts. Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Derivative Instrument Risk Derivative Instrument Risk [Axis] Derivative Contract Type Derivative Contract Type [Domain] Foreign Exchange Contract [Member] Foreign Exchange Contract [Member] Derivatives, Fair Value [Line Items] Derivatives Fair Value [Line Items] Number of outstanding contracts Number Of Outstanding Contracts Derivative underlying hedge percent. Derivative underlying hedge percent Derivative Underlying Hedge Percent Derivative, Nonmonetary Notional Amount, Volume Derivative Nonmonetary Notional Amount Volume Fixed price range Derivative Swap Type Fixed Price Fair value hedge liabilities Fair Value Hedge Liabilities At Fair Value Hedging Designation Hedging Designation [Axis] Hedging Designation Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated As Hedging Instrument [Member] Eligible Item Or Group For Fair Value Option Eligible Item Or Group For Fair Value Option [Axis] Fair Value Option Eligible Item Or Group Fair Value Option Eligible Item Or Group [Domain] Accrued Liabilities [Member] Accrued Liabilities [Member] Derivative asset, fair value, gross liability Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Beginning balance Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value Ending balance Cumulative translation adjustments—net of tax Reclassification of derivative gains to earnings—net of tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I On Derivatives Net Of Tax Change in fair value of derivatives—net of tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax Net unrealized gain on derivatives—net of tax Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] Reclassification Out Of Accumulated Other Comprehensive Income Reclassification Out Of Accumulated Other Comprehensive Income [Axis] Reclassification Out Of Accumulated Other Comprehensive Income Reclassification Out Of Accumulated Other Comprehensive Income [Domain] Reclassification Out Of Accumulated Other Comprehensive Income Reclassification Out Of Accumulated Other Comprehensive Income [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments Gain Loss [Line Items] Costs of contract revenues Debt instrument, face amount Maturity date Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Title Of Individual Title Of Individual [Axis] Title Of Individual With Relationship To Entity Title Of Individual With Relationship To Entity [Domain] Employees and directors. Employees And Directors [Member] Employees And Directors [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based compensation arrangement by share-based payment award, number of shares available for grant Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Restricted stock units Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Bids bond range. Outstanding performance bonds. Revenue value remaining from outstanding performance bonds. Commitments and contingencies. Commitments and contingencies. Commitments And Contingencies [Table] Commitments And Contingencies [Table] Statement Operating Activities Segment Statement Operating Activities Segment [Axis] Segment Operating Activities Segment Operating Activities [Domain] Discontinued Operations [Member] Segment Discontinued Operations [Member] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Bids bond range Bids Bond Range Outstanding performance bonds Outstanding Performance Bonds Revenue value remaining from outstanding performance bonds Revenue Value Remaining From Outstanding Performance Bonds Warranty periods. Warranty periods Warranty Periods Proceeds from Legal Settlements Proceeds From Legal Settlements Funds remitted. Proceeds from Lines of Credit Proceeds From Lines Of Credit Gain (Loss) Related to Litigation Settlement Gain Loss Related To Litigation Settlement Funds remitted Funds Remitted Schedule Of Equity Method Investments [Table] Schedule Of Equity Method Investments [Table] Schedule Of Equity Method Investment Equity Method Investee Name Schedule Of Equity Method Investment Equity Method Investee Name [Axis] Equity Method Investee Name Equity Method Investee Name [Domain] TerraSea Environmental Solutions. TerraSea Environmental Solutions [Member] Terrasea Environmental Solutions [Member] Amboy Aggregates. Amboy Aggregates [Member] Amboy Aggregates [Member] Schedule Of Equity Method Investments [Line Items] Schedule Of Equity Method Investments [Line Items] Other current assets Other Assets Current Provision for losses to be assumed Provision For Loan And Lease Losses Ownership percentage Equity Method Investment Ownership Percentage Discontinued Operations And Disposal Groups [Abstract] Revenue Disposal Group Including Discontinued Operation Revenue Loss before income taxes from discontinued operations Discontinued Operation Income Loss From Discontinued Operation Before Income Tax Income tax (provision) benefit Discontinued Operation Tax Effect Of Discontinued Operation Loss from discontinued operations, net of income taxes Proceeds from Divestiture of Businesses Proceeds From Divestiture Of Businesses Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Statement Geographical Statement Geographical [Axis] Segment Geographical Segment Geographical [Domain] Foreign [Member] Non Us [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Consolidation Items Consolidation Items [Axis] Consolidation Items Consolidation Items [Domain] Operating Segment [Member] Operating Segments [Member] Intersegment Revenues [Member] Intersegment Elimination [Member] Operating income (loss) Owned domestic subsidiaries percent. Schedule Of Condensed Financial Statements [Table] Schedule Of Condensed Financial Statements [Table] Senior Notes [Member] Senior Notes [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements Captions [Line Items] Senior Notes Senior notes interest rate Owned Domestic Subsidiaries Percent Owned Domestic Subsidiaries Percent Subsidiary Guarantors [Member] Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Non Guarantor Subsidiaries [Member] GLDD Corporation [Member] Parent Company [Member] Eliminations [Member] Consolidation Eliminations [Member] Receivables from affiliates Due From Affiliate Current RECEIVABLES FROM AFFILIATES Due From Affiliate Noncurrent INVESTMENTS IN SUBSIDIARIES Investments In Subsidiaries Payables to affiliates Due To Affiliate Current PAYABLES TO AFFILIATES Due To Affiliate Noncurrent Interest income (expense)—net Equity in earnings (loss) of subsidiaries Income Loss From Equity Investments In Subsidiaries Other loss/expense Comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Net cash flows provided by (used in) operating activities of continuing operations Proceeds from vendor performance obligations Net change in accounts with affiliates Payments For Proceeds From Accounts With Affiliates Net change in accounts with affiliates, in finance activities Net Change In Accounts With Affiliates In Finance Activities Capital contributions Capital Contributions