Entity Central Index Key Cover [Abstract] Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Entity Shell Company Entity Shell Company Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, Address Line Two Entity Address Address Line2 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity Incorporation, State or Country Code Entity Incorporation State Country Code Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Accrued liabilities and other liabilities current. Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash Cash And Cash Equivalents At Carrying Value Accounts receivable and unbilled revenue, net of allowance of $1,138 and $743 at June 26, 2020 and December 27, 2019, respectively Receivables Net Current 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 Other assets Other Assets Noncurrent Goodwill Goodwill Operating lease right-of-use assets Operating Lease Right Of Use Asset Total assets Assets LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expenses and other liabilities Accrued Liabilities And Other Liabilities Current Operating lease liabilities Operating Lease Liability Current Total current liabilities Liabilities Current Non-current deferred tax liability, net Deferred Income Tax Liabilities Net Operating lease liabilities Operating Lease Liability Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments And Contingencies Shareholders’ equity: Equity [Abstract] Preferred stock, $0.001 par value, 1,250,000 shares authorized; none issued and outstanding Preferred Stock Value Common stock, $0.001 par value, 125,000,000 shares authorized; 57,546,958 and 57,180,616 shares issued at June 26, 2020 and December 27, 2019, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Treasury stock, at cost, 27,498,432 and 27,425,476 shares June 26, 2020 and December 27, 2019, respectively Treasury Stock Value Accumulated deficit Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Total shareholders' equity Stockholders Equity Total liabilities and shareholders' equity Liabilities And Stockholders Equity Accounts receivable and unbilled revenue, allowance Allowance For Doubtful Accounts Receivable Current Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding 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 Treasury stock, at cost, shares Treasury Stock Shares Share based compensation included in cost of service. Income Statement [Abstract] Statement [Table] Statement [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Revenue before reimbursements. Revenue Before Reimbursements [Member] Revenue Before Reimbursements [Member] Reimbursements. Reimbursements [Member] Reimbursements [Member] Cost before reimbursements. Cost Before Reimbursements [Member] Cost Before Reimbursements [Member] Statement [Line Items] Statement [Line Items] REVENUE: Revenues [Abstract] TOTAL REVENUE FROM CONTINUING OPERATIONS Revenue From Contract With Customer Excluding Assessed Tax COSTS AND EXPENSES: Costs And Expenses [Abstract] Cost of service: Cost Of Goods And Services Sold [Abstract] Total cost of service Cost Of Goods And Services Sold Stock compensation expense Share Based Compensation Included In Cost Of Service Selling, general and administrative costs Selling General And Administrative Expense Stock compensation expense Allocated Share Based Compensation Expense Acquisition-related contingent consideration liability Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 Restructuring costs Restructuring Costs TOTAL COSTS AND OPERATING EXPENSES Costs And Expenses INCOME (LOSS) FROM OPERATIONS Operating Income Loss Other expense: Nonoperating Income Expense [Abstract] Interest expense Interest Expense INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax (benefit) expense Income Tax Expense Benefit INCOME (LOSS) FROM CONTINUING OPERATIONS Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest Loss from discontinued operations Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax NET INCOME (LOSS) Net Income Loss Basic net income (loss) per common share: Earnings Per Share Basic [Abstract] Income (loss) per common share from operations Income Loss From Continuing Operations Per Basic Share Weighted average common shares outstanding Weighted Average Number Of Shares Outstanding Basic Diluted net income (loss) per common share: Earnings Per Share Diluted [Abstract] Income (loss) per common share from operations Income Loss From Continuing Operations Per Diluted Share Weighted average common and common equivalent share outstanding (3) Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net (loss) income Foreign currency translation adjustment Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent Total comprehensive (loss) income Comprehensive Income Net Of Tax Statement Of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Net income Profit Loss Less loss from discontinued operations Income Loss From Discontinued Operations Net Of Tax Net income from continuing operations Adjustments to reconcile net income to net cash provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation expense Depreciation Amortization expense Amortization Of Intangible Assets Amortization of debt issuance costs Amortization Of Financing Costs Non-cash stock compensation expense Share Based Compensation Provision for doubtful accounts Provision For Doubtful Accounts Gain on foreign currency translation Foreign Currency Transaction Gain Loss Before Tax Release of valuation allowance Valuation Allowance Deferred Tax Asset Change In Amount Changes in assets and liabilities: Increase Decrease In Operating Capital [Abstract] Decrease (increase) in accounts receivable and unbilled revenue Increase Decrease In Accounts Receivable (Increase) decrease in prepaid expenses and other assets Increase Decrease In Prepaid Deferred Expense And Other Assets Decrease in accounts payable Increase Decrease In Accounts Payable Increase (decrease) in accrued expenses and other liabilities Increase Decrease In Accrued Liabilities And Other Operating Liabilities Increase in income tax payable Increase Decrease In Accrued Income Taxes Payable Net cash provided by operating activities Net Cash Provided By Used In Operating Activities Cash flows from investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Purchases of property and equipment Payments To Acquire Property Plant And Equipment Net cash used in investing activities Net Cash Provided By Used In Investing Activities Cash flows from financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from issuance of common stock Proceeds From Issuance Of Common Stock Proceeds from borrowings Proceeds From Issuance Of Debt Repayment of borrowings Repayments Of Long Term Debt Dividends paid Payments Of Dividends Repurchase of common stock Payments For Repurchase Of Common Stock Net cash used in financing activities Net Cash Provided By Used In Financing Activities Effect of exchange rate on cash Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Net increase in cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash at end of period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes Income Taxes Paid Net Cash paid for interest Interest Paid Net Statement Of Stockholders Equity [Abstract] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Additional Paid In Capital [Member] Treasury Stock [Member] Treasury Stock [Member] Accumulated Deficit [Member] Retained Earnings [Member] Accumulated Other Comprehensive Loss [Member] Accumulated Other Comprehensive Income [Member] Balance Balance, Shares Shares Outstanding Issuance of common stock Stock Issued During Period Value Share Based Compensation Issuance of common stock, Shares Stock Issued During Period Shares Share Based Compensation Treasury stock purchased Treasury Stock Value Acquired Cost Method Treasury stock purchased, Shares Treasury Stock Shares Acquired Amortization of restricted stock units and common stock subject to vesting requirements Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition Dividends declared Dividends Common Stock Cash Foreign currency translation Balance Ending Balance, Shares Organization Consolidation And Presentation Of Financial Statements [Abstract] Basis of Presentation and General Information Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Earnings Per Share [Abstract] Net (Loss) Income Per Common Share Earnings Per Share [Text Block] Accounts Receivable And Unbilled Revenue, Net [Abstract] Accounts Receivable and Unbilled Revenue, Net Loans Notes Trade And Other Receivables Disclosure [Text Block] Accrued liabilities and other liabilities. Accrued liabilities and other liabilities current. Accrued Liabilities And Other Liabilities Current [Abstract] Accrued Liabilities and Other Liabilities Accrued Liabilities And Other Liabilities [Text Block] Restructuring And Related Activities [Abstract] Restructuring Costs Restructuring And Related Activities Disclosure [Text Block] Leases [Abstract] Leases Lessee Operating Leases [Text Block] Debt Disclosure [Abstract] Credit Facility Debt Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Stockholders Equity Note [Abstract] Shareholders' Equity Stockholders Equity Note Disclosure [Text Block] Related Party Transactions [Abstract] Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Litigation Legal Matters And Contingencies [Text Block] Geographic and service group information. Segment Reporting [Abstract] Geographic and Group Information Geographic And Service Group Information [Text Block] Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Revenue Recognition Revenue Recognition Policy [Text Block] Fair Value Fair Value Of Financial Instruments Policy Business Combinations Business Combinations Policy Income Taxes Income Tax Policy [Text Block] Pandemic impact on our business. COVID-19 Pandemic Impact on Company’s Business Pandemic Impact On Our Business Policy [Text Block] Recently Issued Accounting Standards New Accounting Pronouncements Policy Policy [Text Block] Reclassifications Prior Period Reclassification Adjustment Description Summary of Disaggregation of Total Revenue Including Reimbursable Expenses Disaggregation Of Revenue Table [Text Block] Reconciliation of Basic and Diluted Weighted Average Shares Schedule Of Weighted Average Number Of Shares Table [Text Block] Accounts Receivable and Unbilled Revenue, Net Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Schedule of accrued liabilities and other liabilities. Components of Accrued Expenses and Other Liabilities Schedule Of Accrued Liabilities And Other Liabilities Table [Text Block] Schedule of Activity in Restructuring Expense Accruals Schedule Of Restructuring And Related Costs [Text Block] Components of Lease Expense Lease Cost Table [Text Block] Future Minimum Lease Payments Under Non-Cancellable Operating Leases Lessee Operating Lease Liability Maturity Table [Text Block] Geographic Revenue before Reimbursement Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area [Text Block] Long-Lived Assets Attributable To Geographic Area Schedule Of Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries By Country [Text Block] Business relationship agreement period. Basis of presentation and general information. Basis of presentation and general information. Basis Of Presentation And General Information [Table] Basis Of Presentation And General Information [Table] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Unusual or Infrequent Item, or Both Unusual Or Infrequent Item [Axis] Unusual or Infrequent Item, or Both Unusual Or Infrequent Item [Domain] COVID-19. COVID-19 [Member] C O V I D19 [Member] Basis Of Presentation And General Information [Line Items] Basis Of Presentation And General Information [Line Items] Business relationship agreement period Business Relationship Agreement Period Revenue recognized as a result of change in contract liability Contract With Customer Liability Revenue Recognized Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Consulting. Consulting [Member] Consulting [Member] Software license sales. Software License Sales [Member] Software License Sales [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Revenue before reimbursements from continuing operations Customer contract period. Deferred commissions Capitalized Contract Cost Net Commissions expense Amortization Of Deferred Sales Commissions Impairment loss recognized to capitalization of deferred commission Capitalized Contract Cost Impairment Loss Customer contract period Customer Contract Period Effective tax rate expense (benefit) Effective Income Tax Rate Continuing Operations Global workforce reduced, percentage Restructuring And Related Cost Number Of Positions Eliminated Period Percent Restructuring costs Restructuring Charges Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Restricted Stock Units [Member] Restricted Stock Units R S U [Member] Stock Options [Member] Employee Stock Option [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive common share equivalents Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Antidilutive common share equivalents The sum of dilutive potential unvested restricted stock units and common stock subject to vesting requirements used in the calculation of the diluted per-share or per-unit computation. The sum of dilutive potential stock options and stock appreciation rights used in the calculation of the diluted per-share or per-unit computation. Basic weighted average common shares outstanding Unvested restricted stock units and common stock subject to vesting requirements issued to employees and non-employees Dilutive Restricted Stock Units And Common Stock Subject To Vesting Requirements Common stock issuable upon the exercise of stock options and SARs Dilutive Stock Options And Stock Appreciation Rights Dilutive weighted average common shares outstanding Receivables Net Current [Abstract] Accounts receivable Accounts Receivable Gross Current Unbilled revenue Unbilled Receivables Current Allowance for doubtful accounts Accounts receivable and unbilled revenue, net Accrued compensation and benefits. Accrued deferred employers portion of social security taxes. Accrued share based compensation. Accrued compensation and benefits Accrued Compensation And Benefits Deferred employer's portion of social security taxes Accrued Deferred Employers Portion Of Social Security Taxes Accrued bonuses Accrued Bonuses Current Accrued dividend payable Dividends Payable Current Restructuring liability Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Restructuring Liabilities Deferred revenue Contract With Customer Liability Current Accrued sales, use, franchise and VAT tax Sales And Excise Tax Payable Current Non-cash stock compensation accrual Accrued Share Based Compensation Income tax payable Accrued Income Taxes Current Other accrued expenses Other Accrued Liabilities Current Total accrued expenses and other liabilities Percentage of social security tax deposits due payment. Percentage of social security tax deposits remaining payment. Accrued liabilities and other liabilities current. Accrued liabilities and other liabilities current. Accrued Liabilities And Other Liabilities Current [Table] Accrued Liabilities And Other Liabilities Current [Table] Unusual Risk or Uncertainty, Nature Unusual Risk Or Uncertainty By Nature [Axis] Unusual Risk or Uncertainty, Nature Unusual Risk Or Uncertainty Nature [Domain] Coronavirus, Aid, Relief and Economic Security Act . CARES Act [Member] Coronavirus Aid Relief And Economic Security Act [Member] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] United Kingdom [Member] UNITED KINGDOM Scenario Statement Scenario [Axis] Scenario Scenario Unspecified [Domain] Scenario Forecast [Member] Scenario Forecast [Member] Accrued Liabilities And Other Liabilities Current [Line Items] Accrued Liabilities And Other Liabilities Current [Line Items] Percentage of social security tax deposits due payment Percentage Of Social Security Tax Deposits Due Payment Percentage of social security tax deposits remaining payment Percentage Of Social Security Tax Deposits Remaining Payment Liabilities related to deferrals Deferred Tax Liabilities Schedule Of Restructuring And Related Costs [Table] Schedule Of Restructuring And Related Costs [Table] Restructuring Plan Restructuring Plan [Axis] Restructuring Plan Restructuring Plan [Domain] Two thousand twenty restructuring charge. 2020 Restructuring Charge [Member] Two Thousand Twenty Restructuring Charge [Member] Two thousand nineteen restructuring charge. 2019 Restructuring Charge [Member] Two Thousand Nineteen Restructuring Charge [Member] Restructuring Cost And Reserve [Line Items] Restructuring Cost And Reserve [Line Items] Remaining restructuring commitments Restructuring Reserve Restructuring Type Restructuring Cost And Reserve [Axis] Type of Restructuring Type Of Restructuring [Domain] Severance and other employee costs. Severance and Other Employee Costs [Member] Severance And Other Employee Costs [Member] Exit, closure and consolidation of facilities. Exit Closure and Consolidation of Facilities [Member] Exit Closure And Consolidation Of Facilities [Member] Accrual beginning balance Additions Expenditures Payments For Restructuring Accrual ending balance Lessee Lease Description [Table] Lessee Lease Description [Table] Property, Plant and Equipment, Type Property Plant And Equipment By Type [Axis] Property, Plant and Equipment, Type Property Plant And Equipment Type [Domain] Five year opt-out option for london office lease. Five Year Opt-Out Option for London Office Lease [Member] Five Year Opt Out Option For London Office Lease [Member] London office lease. London Office Lease [Member] London Office Lease [Member] Miami office lease. Miami Office Lease [Member] Miami Office Lease [Member] Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] Operating leases terms Lessee Operating Lease Term Of Contract Operating lease cost Operating Lease Cost Total net lease costs Lease Cost Weighted average remaining lease term Operating Lease Weighted Average Remaining Lease Term1 Operating lease opt-out option Lessee Operating Lease Renewal Term Weighted average discount rate Operating Lease Weighted Average Discount Rate Percent Operating lease payments Operating Lease Payments 2020 (excluding the six months ended June 26, 2020) Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2021 Lessee Operating Lease Liability Payments Due Year Two 2022 Lessee Operating Lease Liability Payments Due Year Three 2023 Lessee Operating Lease Liability Payments Due Year Four 2024 Lessee Operating Lease Liability Payments Due Year Five 2025 and thereafter Lessee Operating Lease Liability Payments Due After Year Five Total lease payments Lessee Operating Lease Liability Payments Due Less imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Total Operating Lease Liability Lessee, operating lease not yet commenced description Lessee Operating Lease Lease Not Yet Commenced Description Lessee, operating lease, option to extend Lessee Operating Lease Option To Extend Line Of Credit Facility [Table] Line Of Credit Facility [Table] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Revolving line of credit facility [Member] Revolving Credit Facility [Member] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] LIBOR floor rate. LIBOR Floor Rate [Member] L I B O R Floor Rate [Member] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate L I B O R [Member] Base Rate [Member] Base Rate [Member] Line of Credit Facility [Line Items] Line Of Credit Facility [Line Items] Borrowing capacity under credit facility Line Of Credit Facility Maximum Borrowing Capacity Maturity date Line Of Credit Facility Expiration Date1 Margin percentage base rate Debt Instrument Basis Spread On Variable Rate1 Increase in interest payable Debt Instrument Interest Rate Increase Decrease Pledge of capital stock to U.S. subsidiaries. Pledge of capital stock to direct foreign subsidiaries. Pledge of capital stock to U.S. subsidiaries Pledge Of Capital Stock To U S Subsidiaries Pledge of capital stock to direct foreign subsidiaries Pledge Of Capital Stock To Direct Foreign Subsidiaries Outstanding balance Line Of Credit Facility Fair Value Of Amount Outstanding Commitment fees percentage Line Of Credit Facility Commitment Fee Percentage Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Common stock subject to vesting requirements. Common Stock Subject to Vesting Requirements [Member] Common Stock Subject To Vesting Requirements [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Shares granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted average grant-date fair value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Shares outstanding Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Nonvested weighted average grant-date fair value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Weighted average period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Class Of Treasury Stock [Table] Class Of Treasury Stock [Table] Stock Appreciation Rights (“SARs”) [Member] Stock Appreciation Rights S A R S [Member] Share Repurchase Program Share Repurchase Program [Axis] Share Repurchase Program Share Repurchase Program [Domain] Stock repurchase. Share Repurchase Plan [Member] Stock Repurchase [Member] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Equity, Class of Treasury Stock [Line Items] Equity Class Of Treasury Stock [Line Items] SARs outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Exercise price Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Expiration date Share Based Compensation Arrangement By Share Based Payment Award Expiration Date Repurchase of common stock Purchase price per share Treasury Stock Acquired Average Cost Per Share Total cost Amount available under repurchase plan Stock Repurchase Program Remaining Authorized Repurchase Amount1 Stock repurchase authorized Stock Repurchase Program Authorized Amount1 Shares repurchased for employee net vesting obligations, shares Shares Paid For Tax Withholding For Share Based Compensation Shares repurchased for employee net vesting obligations, value Adjustments Related To Tax Withholding For Share Based Compensation Dividend declared Common Stock Dividends Per Share Declared Dividend payment Dividends payment, nature Dividends Payable Nature Dividends payable, date declared Dividends Payable Date Declared Day Month And Year Dividends payable, payment date Dividend Payable Date To Be Paid Day Month And Year Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] Director [Member] Director [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule Of Revenues From External Customers And Long Lived Assets [Table] North America [Member] North America [Member] International (primarily European countries). International (Primarily European Countries) [Member] International Primarily European Countries [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues From External Customers And Long Lived Assets [Line Items] Revenue from continuing operations before reimbursements Total long-lived assets Noncurrent Assets Goodwill included in foreign asset. Goodwill included in foreign assets Goodwill Included In Foreign Asset Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Table] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Jibe Consulting, Inc. Jibe Consulting, Inc [Member] Jibe Consulting Inc [Member] Contingent Consideration by Type Contingent Consideration By Type [Axis] Contingent Consideration Type Contingent Consideration Type [Domain] Cash contingent consideration. Cash Contingent Consideration [Member] Cash Contingent Consideration [Member] Stock based contingent consideration. Stock Based Contingent Consideration [Member] Stock Based Contingent Consideration [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Selling shareholders. Selling Shareholder's [Member] Selling Shareholders [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Effective date of acquisition Business Acquisition Effective Date Of Acquisition1 Business combination consideration transferred equity interests issued and issuable vesting period. Business combination contingent consideration arrangements period. Business combination contingent consideration cash share based compensation benefit expense. Purchase consideration Payments To Acquire Businesses Gross Purchase consideration, common stock Business Combination Consideration Transferred Equity Interests Issued And Issuable Common stock vesting period Business Combination Consideration Transferred Equity Interests Issued And Issuable Vesting Period Contingent consideration Business Combination Contingent Consideration Liability Contingent consideration performance period Business Combination Contingent Consideration Arrangements Period Cash compensation benefit Business Combination Contingent Consideration Cash Share Based Compensation Benefit Expense