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Related Activities [Abstract] Restructuring and Related Activities [Abstract] Restricted cash included in other assets Restricted Cash, Noncurrent Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Indemnification Indemnification Indemnification, Fair Value Disclosure Indemnification, Fair Value Disclosure Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Gain on sale of EMEA staffing operations Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Earnings Invested in the Business Earnings Invested In The Business [Member] Earnings Invested In The Business [Member] Equity Awards Adjustments Equity Awards Adjustments [Member] Total Liabilities and Stockholders' Equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Other liabilities Increase (Decrease) in Other Operating Liabilities Retirement plan assets Life Insurance, Corporate or Bank Owned, Amount Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Total Restructuring Charges Tabular List, Table Tabular List [Table Text Block] Paid-in capital Additional Paid in Capital Other income (expense), net Other income (expense), net Other Nonoperating Income (Expense) Business unit profit Business Unit Profit (Loss) Business Unit Profit (Loss) Intangible asset, finite-lived, estimated amortization expense, year three Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three Name Awards Close in Time to MNPI Disclosures, Individual Name 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] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Noncurrent Assets Assets, Noncurrent [Abstract] Adjustment to Compensation: Adjustment to Compensation [Axis] Proceeds from sale of EMEA staffing operations, net of cash disposed Proceeds From Sale Of Productive Assets, Net Of Cash Disposed Proceeds From Sale Of Productive Assets, Net Of Cash Disposed Dividends Payable [Line Items] Dividends Payable [Line Items] Dividends Payable [Table] Dividends Payable [Table] Class of Stock [Domain] Class of Stock [Domain] Restructuring Cost and Reserve [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 Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Capital expenditures Payments to Acquire Productive Assets Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Credit Facility [Axis] Credit Facility [Axis] Integration, Realignment and Restructuring Restructuring and Related Activities Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets at fair value Assets, Fair Value Disclosure Direct salaries Cost, Direct Labor EMEA and Brazil EMEA and Brazil [Member] EMEA and Brazil Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other, net Other Noncash Income (Expense) Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Name Trading Arrangement, Individual Name Cash and equivalents Cash and Cash Equivalent Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization Depreciation, Depletion and Amortization Vesting adjustment (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vesting Adjustment Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vesting Adjustment Current Assets Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Income tax expense Income Tax Expense (Benefit) Other Income (Expense), Net Other Income and Other Expense Disclosure [Text Block] Current period provision Accounts Receivable, Current Period Provision Accounts Receivable, Current Period Provision Adjustments to reconcile net earnings to net cash from operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Cost of services Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Net change in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forecast Forecast [Member] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] New Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net earnings Net earnings Net earnings 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] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Accumulated Other Comprehensive Income by Component, Net of Tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Interest income Investment Income, Interest Intangible assets, finite-lived, accelerated amortization expense Intangible Assets, Finite-Lived, Accelerated Amortization Expense Intangible Assets, Finite-Lived, Accelerated Amortization Expense Treasury stock, at cost Treasury Stock, Number of Shares and Restriction Disclosures [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]