Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Payable and Accrued Liabilities, Current Accounts payable, accrued expenses and other Accounts Receivable, Gross, Current Billed receivables Accounts Receivable, Net, Current Accounts receivable, net Accounts receivable, net Accounts Receivable, Net, Current [Abstract] Accounts receivable: Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Accumulated Other Comprehensive (Loss) Additional Financial Information Disclosure [Text Block] Supplemental Condensed Consolidating Guarantor and Non-Guarantor Financial Information Additional Paid in Capital, Common Stock Additional paid-in capital Additional Paid-in Capital [Member] Additional Paid-in Capital Segment's share of consolidated operating income before depreciation, amortization of intangible assets, remeasurement of acquisition-related contingent consideration, special charges and goodwill impairment charges. Adjusted Segment Ebitda Adjusted Segment EBITDA Total Adjusted Segment EBITDA Amortization Amortization of other intangible assets Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Exercise of options, income tax expense Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash used in operating activities: Allocated Share-based Compensation Expense Total share-based compensation expense Allowance for Doubtful Accounts Receivable, Current Allowance for doubtful accounts and unbilled services Amendment Flag Amendment Flag The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets, combined with the amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of indefinite-lived intangible assets, other than goodwill, to fair value. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. Amortization And Impairment Of Other Intangible Assets Amortization of other intangible assets Finite lived intangible assets, amortization expense Amortization of Intangible Assets Amortization of other intangible assets Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive securities excluded from computation of earnings per share Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Assets Total assets Assets [Abstract] Assets Assets, Current Total current assets Assets, Current [Abstract] Current assets Assets Sold under Agreements to Repurchase [Line Items] Assets Sold under Agreements to Repurchase [Line Items] Award Type [Axis] Award Type [Axis] Base Rate [Member] Base Rate Billings in Excess of Cost, Current Billings in excess of services provided Fair value, as of the period end date, of potential payments under the contingent consideration arrangement including cash and shares. Business Acquisition Contingent Consideration At Fair Value At Period End Ending balance Beginning balance Payment made during the period related to acquisition-related contingent consideration. Business Acquisition Contingent Consideration Cash Payment Payments Business Acquisition, Contingent Consideration [Line Items] Business Acquisition, Contingent Consideration [Line Items] Business Acquisition Contingent Consideration Settlement Business Acquisition Contingent Consideration Settlement Contractual Settlement Business Acquisition Date Contingent Consideration At Fair Value Business Acquisition Date Contingent Consideration At Fair Value Acquisition Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Asset Accretion of acquisition-related contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Acquisition-related contingent consideration Change in amount of contingent consideration Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net Remeasurement of acquisition-related contingent consideration Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Loss Remeasurement of acquisition-related contingent Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Net decrease in cash and cash equivalents Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash investing and financing activities: Commitments and Contingencies Commitments and contingent liabilities (note 10) Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Common Stock [Member] Common Stock Common Stock, Par or Stated Value Per Share Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Ending Balance (in shares) Beginning Balance (in shares) Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Value, Issued Common stock, $0.01 par value; shares authorized-75,000; shares issued and outstanding-41,807 (2015) and 41,181 (2014) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Other comprehensive income (loss): Consolidation, Eliminations [Member] Eliminations Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Corporate Finance Restructuring [Member] Corporate Finance Restructuring [Member] Corporate Finance / Restructuring Cost of Revenue Direct cost of revenues Cost of Sales [Member] Direct Cost Of Revenues Costs and Expenses Costs and Expenses, Total Costs in Excess of Billings, Current Unbilled receivables Current Fiscal Year End Date Current Fiscal Year End Date Amounts paid as of the current balance sheet date related to the current period special charges. Current Period Special Charges Amount Paid Cash outflow associated with special charges, amount paid Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Text Block] Debt Debt Instrument, Basis Spread on Variable Rate Revolving Credit Facility, percentage points added to the reference rate Debt Instrument, Interest Rate, Stated Percentage Interest percentage Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument Maturity Year Debt Instrument Maturity Year Debt maturity period Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Deferred Tax Assets, Net of Valuation Allowance, Current Current portion of deferred tax assets Deferred Tax Liabilities, Net, Noncurrent Deferred income taxes Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Description of New Accounting Pronouncements Not yet Adopted [Text Block] New Accounting Standards Not Yet Adopted Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Share-Based Compensation Document and Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Information [Table] Document Information [Table] Document Period End Date Document Period End Date Document Type Document Type Earnings Per Common Share [Line Items] Earnings Per Common Share [Line Items] Earnings Per Common Share [Line Items] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Earnings Per Share, Basic Earnings per common share-basic Earnings Per Share Basic And Diluted Numerator [Abstract] Earnings Per Share Basic And Diluted Numerator [Abstract] Numerator-basic and diluted Earnings Per Share, Diluted Earnings per common share-diluted Earnings Per Share [Text Block] Earnings Per Common Share Economic Consulting [Member] Economic Consulting [Member] Economic Consulting Effect of Exchange Rate on Cash and Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Employee-related Liabilities, Current Accrued compensation Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Severance [Member] Employee Termination Costs Employee Stock Option [Member] Stock Options Entity Central Index Key Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity [Domain] Entity [Domain] Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity Component [Domain] Equity Component [Domain] Total cash outflows expected to be paid related to the special charges recorded in the current period. Expected Cash Outflow From Current Period Special Charges Total cash outflow associated with special charges, amount paid Expected Cash Outflow From Special Charges From Year Five To Year Eleven Expected Cash Outflow From Special Charges From Year Five To Year Eleven Cash outflow associated with special charges, amount expected to be paid from 2019 to 2025 Cash outflows expected to be paid during the remainder of the fiscal year related to the special charges recorded in the period. Expected Cash Outflow From Special Charges Remainder of Fiscal Year Cash outflow associated with special charges, amount expected to be paid in 2015 Expected Cash Outflow From Special Charges Year Four Expected Cash Outflow From Special Charges Year Four Cash outflow associated with special charges, amount expected to be paid in 2018 Cash outflows expected to be paid during the third fiscal year following this fiscal year related to the special charges recorded in the period. Expected Cash Outflow From Special Charges Year Three Cash outflow associated with special charges, amount expected to be paid in 2017 Cash outflows expected to be paid during the second fiscal year following this fiscal year related to the special charges recorded in the period. Expected Cash Outflow From Special Charges Year Two Cash outflow associated with special charges, amount expected to be paid in 2016 Facility Closing [Member] Closure of West Palm Beach Executive Office Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Financial Instruments Finite-Lived Intangible Assets, Amortization Expense, after Year Six Finite-Lived Intangible Assets, Amortization Expense, after Year Six Estimated amortization expense after the year 2020 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year Estimated amortization expense during the remainder of 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Five Estimated amortization expense for the year 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Four Estimated amortization expense for the year 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Six Finite-Lived Intangible Assets, Amortization Expense, Year Six Estimated amortization expense for the year 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Three Estimated amortization expense for the year 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Two Estimated amortization expense for the year 2016 Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Foreign Currency Translation [Member] Foreign Currency Translation [Member] Foreign Currency Translation Forensic And Litigation Consulting [Member] Forensic And Litigation Consulting [Member] Forensic and Litigation Consulting Former Credit Facility [Member] Former Credit Facility [Member] Former Credit Facility Gain or Loss on remeasurement Of Contingent Consideration Gain Loss On Remeasurement Of Contingent Consideration Gain/Loss on remeasurement of contingent consideration General and Administrative Expense [Member] Selling, General And Administrative Expenses Goodwill Goodwill, net at June 30, 2015 Goodwill, net at December 31, 2014 Goodwill Goodwill, Acquired During Period Acquisitions Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Other Intangible Assets Goodwill, Gross Goodwill Goodwill Goodwill, Impaired, Accumulated Impairment Loss Accumulated goodwill impairment Accumulated goodwill impairment Goodwill [Line Items] Goodwill [Line Items] Goodwill, Translation Adjustments Foreign currency translation adjustment and other Guarantor Subsidiaries [Member] Guarantor Subsidiaries Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income (loss) before income tax provision Income before income tax provision Income (Loss) from Subsidiaries, Net of Tax Equity in net earnings of subsidiaries Income Statement [Abstract] Condensed Consolidated Statements of Income Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Tax Disclosure [Text Block] Income Taxes Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes Paid, Net Cash paid for income taxes, net of refunds Income Tax Expense (Benefit) Income tax (benefit) provision Income tax provision Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable, accrued expenses and other Increase (Decrease) in Accounts Receivable Accounts receivable, billed and unbilled Increase (Decrease) in Income Taxes Payable Income taxes Net change during the period in billings in excess of services provided. Increase Decrease In Billing In Excess Of Service Provided Billings in excess of services provided Increase (Decrease) in Employee Related Liabilities Accrued compensation Increase (Decrease) in Notes Receivable, Current Notes receivable Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities, net of effects from acquisitions: Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Effect of dilutive stock options Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends Effect of dilutive restricted shares Intangible Assets, Net (Excluding Goodwill) Other intangible assets, net Other intangible assets, net of amortization Amounts due to subsidiaries that are eliminated in consolidation. Intercompany Payables Intercompany payables Amounts due from subsidiaries that are eliminated in consolidation. Intercompany Receivables Intercompany receivables Intercompany transfers among subsidiaries that are eliminated in consolidation. Intercompany Transfers Intercompany transfers Interest and Other Income (Expense), Net Interest and Other Income (Expense), Net Interest income and other Interest Expense Interest expense Interest Paid Cash paid for interest Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investments in subsidiaries Lease Costs [Member] Lease Costs [Member] Lease Costs Lease Termination [Member] Lease Termination [Member] Lease Termination Legal Entity [Axis] Legal Entity [Axis] Letter of Credit [Member] Letter of Credit Liabilities Total liabilities Liabilities [Abstract] Liabilities Liabilities and Equity Total liabilities and stockholders' equity Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities, Current Total current liabilities Liabilities, Current [Abstract] Current liabilities Liabilities, Noncurrent Other liabilities Liability for Uncertain Tax Positions, Noncurrent Liability for uncertain tax positions Long-term Line of Credit Line of credit facility borrowings outstanding Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Expiration Date Line of credit, maturity date Line Of Credit Facility Fronting Fee Percentage Line Of Credit Facility Fronting Fee Percentage Line of credit, fronting fees Line of Credit Facility, Interest Rate Description Borrowing interest rate description Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Line of Credit Facility, Maximum Borrowing Capacity Senior secured revolving line of credit Line Of Credit Facility Maximum Leverage Percentage Line Of Credit Facility Maximum Leverage Percentage Leverage ratio Line of Credit Facility [Member] Line of Credit Facility [Member] Line of Credit Facility Line of Credit Facility [Table] Line of Credit Facility [Table] Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of credit, commitment fees on unused borrowing capacity London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) Long-term Debt Long-term debt, carrying value Total debt Total debt Long-term Debt and Capital Lease Obligations Long-term debt, net Long-term Debt, Current Maturities Current portion of long-term debt Less current portion Long-term Debt, Fair Value Long-term debt, fair value Long-term Debt, Excluding Current Maturities Long-term debt, net of current portion Long-term Debt, Type [Axis] Long-term Debt, Type Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Maximum [Member] Maximum Minimum [Member] Minimum Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Financing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Investing activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash used in operating activities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Operating activities Net Income (Loss) Attributable to Parent Net income Net income New Credit Facility [Member] New Credit Facility [Member] 2015 Credit Facility Non-Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries Nonoperating Income (Expense) Other (expense) income Other (expense) income Nonoperating Income (Expense) [Abstract] Other income (expense) Notes, Loans and Financing Receivable, Net, Current Current portion of notes receivable Notes, Loans and Financing Receivable, Net, Noncurrent Notes receivable, net of current portion Number of Operating Segments Number of reportable segments Operating Costs and Expenses [Abstract] Operating expenses Operating Income (Loss) Operating income Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Basis of Presentation and Significant Accounting Policies Other Assets, Current Other current assets Other Assets, Noncurrent Other assets Other Noncurrent Assets plus Notes Receivable, net of current portion Other Assets Noncurrent And Notes Receivable Net Of Current Portion Other assets Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustments, net of tax expense of $0 Cumulative translation adjustment Foreign currency translation adjustments, net of tax $0 Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Foreign currency translation adjustments, tax expense Foreign currency translation adjustments, tax expense (benefit) Other Comprehensive Income (Loss), Net of Tax Total other comprehensive (loss) income, net of tax Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss), net of tax: Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Other Liabilities, Current Other current liabilities Other Liabilities Disclosure [Abstract] Other Liabilities Disclosure [Abstract] Other Liabilities, Noncurrent Other liabilities Other Noncash Income (Expense) Other Other Notes Payable Notes payable to former shareholders of acquired businesses Ownership Percentage Of Guarantor Subsidiary Ownership Percentage Of Guarantor Subsidiary Guarantors Subsidiary ownership percentage Paid-in-Kind Interest Non-cash interest expense Parent Company [Member] FTI Consulting, Inc. Payments for (Proceeds from) Other Investing Activities Other Payments for Repurchase of Common Stock Purchase and retirement of common stock Payments of Financing Costs Payment of debt financing fees Payments of debt financing fees Payments to Acquire Businesses, Net of Cash Acquired Payments for acquisition of businesses, net of cash received Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Performance Shares [Member] Performance Units Preferred Stock, Par or Stated Value Per Share Preferred stock, par value Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred Stock, Value, Issued Preferred stock, $0.01 par value; shares authorized-5,000; none outstanding Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Proceeds from Contributions from Affiliates Deposits Proceeds from (Payments for) Other Financing Activities Other The net cash associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Proceeds Or Payments From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options Net issuance of common stock under equity compensation plans Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net of accumulated depreciation Provision for Doubtful Accounts Provision for doubtful accounts Provision for doubtful accounts disclosure Provision For Doubtful Accounts Disclosure [Text Block] Allowance for Doubtful Accounts and Unbilled Services Provisions for Doubtful Accounts [Line Items] Provisions for Doubtful Accounts [Line Items] Provisions for Doubtful Accounts [Line Items] Provisions for Doubtful Accounts [Table] Provisions for Doubtful Accounts [Table] Provisions for Doubtful Accounts [Table] Quarterly Financial Information [Line Items] Quarterly Financial Information [Line Items] Quarterly Financial Information [Line Items] Quarterly Financial Information [Table] Quarterly Financial Information [Table] Quarterly Financial Information [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Receivables [Abstract] Receivables [Abstract] Research and Development [Abstract] Research and Development [Abstract] Research and Development Expense, Software (Excluding Acquired in Process Cost) Research and development costs related to software development Research, Development, and Computer Software Disclosure [Text Block] Research and Development Costs Restricted Stock or Unit Expense Issuance of stock units under incentive compensation plans Restricted Stock [Member] Restricted Stock Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) Restructuring Type [Axis] Restructuring Type [Axis] Retained Earnings (Accumulated Deficit) Retained earnings Retained Earnings [Member] Retained Earnings Revenues Revenues Scenario, Forecast [Member] Scenario, Forecast Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] The rollforward of acquisition-related contingent consideration. Schedule Of Acquisition Related Contingent Consideration Rollforward Table [Text Block] Schedule of Changes in Acquisition-Related Contingent Consideration Liability Schedule of Assets Sold under Agreements to Repurchase [Table] Schedule of Assets Sold under Agreements to Repurchase [Table] Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table] Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table] Condensed Balance Sheet [Table Text Block] Condensed Consolidating Balance Sheet Information Condensed Cash Flow Statement [Table Text Block] Condensed Consolidating Statement of Cash Flow Condensed Income Statement [Table Text Block] Condensed Consolidating Statement of Comprehensive Income Schedule of Long-term Debt Instruments [Table Text Block] Components of Debt Obligations Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Table] Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Table] Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Table] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings Per Share Basic and Diluted Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Share-based Compensation Expense Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Schedule of Goodwill [Table Text Block] Schedule of Changes in Carrying Amounts of Goodwill by Operating Segment Reconciliation of adjusted segment EBITDA to income before income tax provision. Schedule Of Reconciliation Of Adjusted Segment Ebitda Table [Text Block] Reconciliation of Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization Schedule Of Research And Development [Line Items] Schedule Of Research And Development [Line Items] Schedule Of Research And Development [Line Items] Schedule Of Research And Development [Table] Schedule Of Research And Development [Table] Schedule Of Research And Development [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table Text Block] Revenues and Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization for Reportable Segments Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Disclosure of changes to an entity's special charges reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's reserve by type of cost and in total, and explanation of changes that occurred in the period. Schedule Of Special Charges Reserve By Type Of Cost [Text Block] Schedule of Special Charges Reserve by Type of Cost Segment depreciation expense not including unallocated corporate depreciation expense. Segment Depreciation Expense Segment depreciation expense Segments [Domain] Segments [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment Reporting Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Used as a reconciling item from Total Adjusted Segment EBITDA to Income before tax provision, the charge against earnings in the period, comprised of costs associated with non-recurring activities related to our global branding strategy and other strategic branding decisions, a realignment of our workforce and consolidation of office locations. Segment Reporting Special Charges Amount Special charges Selling, General and Administrative Expense Selling, general and administrative expense Selling, general and administrative expenses Senior Notes Senior notes Senior Notes Six Point Zero Percent Due Twenty Twenty Two [Member] Senior Notes Six Point Zero Percent Due Twenty Twenty Two [Member] 6.0% Senior Notes Due 2022 Share-based Compensation Non-cash share-based compensation 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 Shares Forfeited In Period Share Based Compensation Arrangement By Share Based Payment Award Shares Forfeited In Period Share based awards forfeited Equity Award [Domain] Equity Award [Domain] Six And Three Fourths Percent Senior Notes Due Two Thousand Twenty [Member] Six And Three Fourths Percent Senior Notes Due Two Thousand Twenty [Member] 6 3/4 % Senior Notes Due 2020 The charge against earnings in the period, comprised of costs associated with non-recurring activities related to our global branding strategy and other strategic branding decisions, a realignment of our workforce and consolidation of office locations. Special Charges Amount Special charges Special Charges [Line Items] Special Charges [Line Items] Special Charges [Line Items] Special charges on foreign currency translation adjustment and other. Special Charges On Foreign Currency Translation Adjustment And Other Foreign currency translation adjustment and other Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination and to asset retirement obligations. Special Charges Reserve Ending Balance Beginning Balance Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of special charge. Special Charges Reserve Settled With Cash Payments Amount of consideration other than cash paid in the period to fully or partially settle a specified, previously accrued type of special charge. Special Charges Reserve Settled Without Cash Non cash special charges Special Charges [Table] Special Charges [Table] Special Charges [Table] Description of non-recurring activities related to our global branding strategy and other strategic branding decisions, a realignment of our workforce and consolidation of office locations, including related costs and liabilities. Special Charges [Text Block] Special Charges Segments [Axis] Segments [Axis] Equity Components [Axis] Equity Components [Axis] Statement [Line Items] Statement [Line Items] Statement of Cash Flows [Abstract] Condensed Consolidated Statements of Cash Flows Statement of Financial Position [Abstract] Condensed Consolidated Balance Sheets Statement of Stockholders' Equity [Abstract] Condensed Consolidated Statement of Stockholders' Equity and Comprehensive Income Scenario [Axis] Scenario [Axis] Statement [Table] Statement [Table] Stockholders' Equity Attributable to Parent Ending Balance Beginning Balance Stockholders' equity Total stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity Stock Issued or Granted During Period, Share-based Compensation [Abstract] Issuance of common stock in connection with: Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Restricted share grants, settled shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted share grants, less net settled shares of 102 (in shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Share-based awards Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercise of options, net of income tax impact from share-based awards of $2,599 (in shares) Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Restricted share grants, less net settled shares of 102 Stock Issued During Period, Value, Stock Options Exercised Exercise of options, net of income tax impact from share-based awards of $2,599 Market value of stock units issued under incentive compensation plans. Stock Issued During Period Value Stock Units Under Incentive Compensation Plan Stock units issued under incentive compensation plan Stock Options And Restricted Shares [Member] Stock Options And Restricted Shares [Member] Stock Options and Restricted Shares Strategic Communications [Member] Strategic Communications [Member] Strategic Communications Supplemental Cash Flow Information [Abstract] Supplemental cash flow disclosures Technology [Member] Technology [Member] Technology Text Block [Abstract] Text Block [Abstract] Trading Symbol Trading Symbol Type of Restructuring [Domain] Type of Restructuring [Domain] Unallocated corporate expenses excluding special charges not allocated to segments. Unallocated Corporate Expenses Unallocated corporate expenses, excluding special charges Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Weighted Average Number of Shares Outstanding, Diluted Weighted average number of common shares outstanding-diluted Weighted Average Number of Shares Outstanding, Basic Weighted average number of common shares outstanding-basic Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Denominator