Entity Central Index Key Accounts receivable, noncurrent and contract receivable retainage. Charitable contributions Adjustment to deferred tax depreciation Income tax reconciliation change in deferred state tax rate Income tax reconciliation, changes in unrecognized tax benefits Investments in subsidiaries. Investments in subsidiaries liability. Income (loss) from equity investments in subsidiaries. Equity in earnings (loss) of joint venture through business units. Net change in accounts with affiliates Proceeds to repayments from parent in investing activities. Seven point three seven five senior notes tender premium. Excess tax benefit (expense) from share based compensation financing activities. Net change in accounts with affiliates, in finance activities. Proceeds to repayments from parent. Capital contributions. Intercompany dividends Proceeds from equipment debt. 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 Entity Public Float Entity Public Float Entity Voluntary Filers Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status 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 Prepaid Expense Current Other current assets Other Assets Current Total current assets Assets Current PROPERTY AND EQUIPMENT—Net Property Plant And Equipment Net GOODWILL Goodwill OTHER INTANGIBLE ASSETS — Net Other Intangible Assets Net INVENTORIES—Noncurrent Inventory Noncurrent INVESTMENTS IN JOINT VENTURES Investments In Affiliates Subsidiaries Associates And Joint Ventures ASSETS HELD FOR SALE— Noncurrent Disposal Group Including Discontinued Operation Assets Noncurrent OTHER Other Assets Noncurrent TOTAL Assets LIABILITIES AND EQUITY Liabilities And Stockholders Equity [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 LONG-TERM DEBT Long Term Debt Noncurrent REVOLVING CREDIT FACILITY Long Term Line Of Credit DEFERRED INCOME TAXES Deferred Tax Liabilities Noncurrent OTHER Other Liabilities Noncurrent Total liabilities Liabilities COMMITMENTS AND CONTINGENCIES (Note 14) Commitments And Contingencies EQUITY: Stockholders Equity [Abstract] Common stock—$.0001 par value; 90,000 authorized, 61,897 and 61,240 shares issued; 61,619 and 60,962 outstanding at December 31, 2017 and December 31, 2016, 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 income (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 Income Statement [Abstract] CONTRACT REVENUES Revenues COSTS OF CONTRACT REVENUES Contract Revenue Cost GROSS PROFIT Gross Profit OPERATING EXPENSES: Operating Expenses [Abstract] 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 Total operating income (loss) Operating Income Loss OTHER EXPENSE: Nonoperating Income Expense [Abstract] Interest expense—net Interest Income Expense Nonoperating Net Equity in loss of joint ventures Equity In Earning Loss Of Joint Venture Through Business Units Loss on extinguishment of debt Gains Losses On Extinguishment Of Debt Other expense Other Nonoperating Income Expense Total other expense Nonoperating Income Expense LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest INCOME TAX BENEFIT Income Tax Expense Benefit 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 LOSS Net Income Loss Basic loss per share attributable to loss from continuing operations Income Loss From Continuing Operations Per Basic Share Basic loss per share attributable to loss on discontinued operations, net of income taxes 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 loss per share attributable to loss from continuing operations Income Loss From Continuing Operations Per Diluted Share Diluted loss per share attributable to loss on discontinued operations, net of income taxes 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 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 loss on derivatives—net of tax Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Other comprehensive income (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 loss on derivatives, tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax Vesting of restricted stock units value including impact of shares withheld for taxes. Vesting of restricted stock units shares including impact of shares withheld for taxes. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] 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 Income (Loss) [Member] Accumulated Other Comprehensive Income [Member] Statement [Line Items] Statement [Line Items] BALANCE - value BALANCE - shares Shares Outstanding 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 Vesting Of Restricted Stock Units Value Including Impact Of Shares Withheld For Taxes Vesting of restricted stock units, including impact of shares withheld for taxes, shares Vesting Of Restricted Stock Units Shares Including Impact Of Shares Withheld For Taxes Exercise of stock options and purchases from employee stock plan, Value Stock Issued During Period Value Stock Options Exercised Exercise of stock options and purchases from employee stock plan, 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 Purchase of treasury stock, value Treasury Stock Value Acquired Cost Method Purchase of treasury stock, shares Treasury Stock Shares Acquired Other comprehensive income (loss)—net of tax BALANCE - value BALANCE - shares Cash distributions from joint ventures. Gain (Loss) On Adjustment Of Contingent Consideration Other non-cash restructuring items. Amortization of deferred financing cost and other non cash interest expense. 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. Statement Of Cash Flows [Abstract] OPERATING ACTIVITIES: Net Cash Provided By Used In Operating Activities [Abstract] Loss from continuing operations Adjustments to reconcile net loss to net cash flows provided by 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 (earnings) loss of joint ventures Income Loss From Equity Method Investments Loss on extinguishment of 7 3/8% senior subordinated notes Cash distributions from joint ventures Cash Distributions From Joint Ventures Deferred income taxes Deferred Income Tax Expense Benefit (Gain) loss on dispositions of property and equipment Gain Loss On Sale Of Property Plant Equipment Impairment of goodwill Gain on adjustment of contingent consideration Gain Loss On Adjustment Of Contingent Consideration Other non-cash restructuring items Other Non Cash Restructuring Items Amortization of deferred financing fees Amortization Of Deferred Financing Cost And Other Non Cash Interest Expense Unrealized foreign currency (gain) loss Foreign Currency Transaction Gain Loss Unrealized Unrealized net (gain) loss from mark-to-market valuations of derivatives Unrealized Gain Loss On Derivatives 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 Deferred Expense And Other Assets Accounts payable and accrued expenses Increase Decrease In Accounts Payable And Accrued Liabilities Billings in excess of contract revenues Increase Decrease In Billing In Excess Of Cost Of Earnings Other noncurrent assets and liabilities Increase Decrease In Other Noncurrent Assets And Liabilities Net Net cash flows provided by 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 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 Changes in restricted cash Increase Decrease In Restricted Cash Net change in accounts with affiliates Payments For Proceeds From Accounts With Affiliates Transfer to parent Proceeds To Repayments From Parent In Investing Activities Cash used in investing activities Net Cash Provided By Used In Investing Activities 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 3/8% SENIOR NOTES [Member] Seven Point Three Seven Five Senior Notes Due In Two Thousand Nineteen [Member] Debt instrument, interest rate, stated percentage Debt Instrument Interest Rate Stated Percentage Property and equipment purchased on capital leases and equipment notes. Property and equipment purchased on notes payable. FINANCING ACTIVITIES: Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from issuance of debt Proceeds From Issuance Of Debt Repayments of debt Repayments Of Debt 7 3/8% senior notes tender premium Seven Point Three Seven Five Senior Notes Tender Premium Deferred financing fees Payment Of Financing And Stock Issuance Costs Taxes paid on settlement of vested share awards Payments Related To Tax Withholding For Share Based Compensation Exercise of stock 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 Purchase of 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 Cash provided by 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 increase (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 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 Property & equipment purchased on notes payable Property And Equipment Purchased On Notes Payable Organization Consolidation And Presentation Of Financial Statements [Abstract] Nature Of Business And Summary Of Significant Accounting Policies Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Text Block] Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Cash And Cash Equivalents [Abstract] Restricted And Escrowed Cash Cash And Cash Equivalents Disclosure [Text Block] Receivables [Abstract] Accounts receivable and contracts in progress Loans Notes Trade And Other Receivables Disclosure [Text Block] Property Plant And Equipment [Abstract] Property And Equipment Property Plant And Equipment Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract]