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Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Proceeds from term loans Proceeds from Issuance of Secured Debt Common Stock Common Stock [Member] Effect of Change in Accounting Estimate, Type [Axis] Effect of Change in Accounting Estimate, Type [Axis] Severance and Other Employee Costs Employee Severance [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] BASIS OF FINANCIAL STATEMENT PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cover [Abstract] Cover [Abstract] Derivative Contract [Domain] Derivative Contract [Domain] Concentration risk, percentage Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Foreign currency impact and other adjustments to goodwill Goodwill, Foreign Currency Translation, Gain (Loss) Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and equity Liabilities and Equity Employee stock options and awards Stock Options Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Proceeds from issuance of senior notes Proceeds from Issuance of Senior Long-Term Debt Restructuring charges Restructuring Charges Schedule of Accounts Receivable, Unbilled Services and Unearned Revenue Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital 7.5% senior notes due 2030 7.5% Senior Notes, Due 2030 [Member] 7.5% Senior Notes, Due 2030 Other, net Other Nonoperating Income (Expense) Enabling Services segment disposal Enabling Services Segment Disposal [Member] Enabling Services Segment Disposal Name Awards Close in Time to MNPI Disclosures, Individual Name Equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Number of countries with primary office locations Number Of Countries With Primary Office Locations Number Of Countries With Primary Office Locations Adjustment to Compensation: Adjustment to Compensation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Restructuring and Other Charges [Line Items] Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Capital expenditures Payments to Acquire Productive Assets Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Foreign currency forward contracts Foreign Exchange Forward [Member] Credit Facility [Axis] Credit Facility [Axis] RESTRUCTURING AND OTHER CHARGES Restructuring and Related Activities Disclosure [Text Block] Issuance of common stock under employee stock plan (in shares) Stock Issued During Period, Shares, Employee Stock Ownership Plan Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name INCOME TAXES Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Other, net Other Noncash Income (Expense) Long-Term Debt Long-Term Debt and Lease Obligation [Abstract] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Aggregate purchase consideration Business Combination, Consideration Transferred Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Supplemental Cash Flow Elements [Abstract] Impairment Impairment Goodwill, Impairment Loss Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Derivatives not designated as hedging instruments: Not Designated as Hedging Instrument [Member] Depreciation and amortization Depreciation, Depletion and Amortization Current assets: Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Senior notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One North America North America [Member] Income tax (benefit) expense Income Tax Expense (Benefit) Foreign exchange gain (loss) Gain (Loss), Foreign Currency Transaction, before Tax Customer concentration risk Customer Concentration Risk [Member] Award Timing Method Award Timing Method [Text Block] Net change in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income (loss) Net income (loss) Net loss Net earnings (loss) Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Swingline sub-facility Bridge Loan [Member] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Class of warrant or right, number of securities called by each arrant or right (in dollars per share) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]