Document and Entity Information [Abstract] Document and entity information. Document Type Amendment Flag Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Condensed Consolidated Balance Sheets [Abstract] Assets Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Restricted cash Restricted Cash and Cash Equivalents, Current Accounts receivable, less allowance for doubtful accounts of $5,757 and $3,805 at September 30, 2012 and December 31, 2011, respectively Accounts Receivable, Net, Current Other receivables Other Receivables Prepaid Expense, Current Prepaid expenses Other Assets, Current Other current assets Income taxes recoverable Income Taxes Receivable, Current Deferred Tax Assets, Net, Current Deferred income taxes Assets, Current Total current assets Non-current assets: Assets, Noncurrent [Abstract] Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Restricted Cash and Investments, Noncurrent Restricted cash Defined Benefit Plan, Assets for Plan Benefits, Noncurrent Assets designated for retirement and pension plans Operating income (loss) Investments Investments Total Investments Other Assets, Noncurrent Other non-current assets Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill Deferred Tax Assets, Net, Noncurrent Deferred income taxes Total non-current assets Assets, Noncurrent Assets Total assets Total Current liabilities: Liabilities, Current [Abstract] Accounts Payable, Current Accounts payable Employee-related Liabilities, Current Accrued salaries and employee benefits Income taxes payable Accrued Income Taxes, Current Deferred income taxes Deferred Tax Liabilities, Current Total current liabilities Liabilities, Current Non-current liabilities: Liabilities, Noncurrent [Abstract] Pension and Other Postretirement Defined Benefit Plans, Liabilities Retirement and pension plans Other Liabilities, Noncurrent Other non-current liabilities Total other non-current liabilities Deferred income taxes Deferred Tax Liabilities, Noncurrent Liabilities, Noncurrent Total non-current liabilities Liabilities Total liabilities Commitments and contingencies (Note 16) Commitments and contingencies (Note 16) Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $.01 par value, 10,000,000 shares authorized, no shares issued at September 30, 2012 and December 31, 2011 Preferred Stock, Value, Issued Common stock, $.01 par value, 100,000,000 shares authorized, 19,585,777 shares issued, 17,971,420 and 17,870,236 shares outstanding at September 30, 2012 and December 31, 2011, respectively Common Stock, Value, Issued Treasury stock at cost, 1,614,357 and 1,715,541 shares at September 30, 2012 and December 31, 2011, respectively Treasury Stock, Value Additional Paid in Capital Additional paid in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income Stockholders' Equity Attributable to Parent Ending Balance Beginning Balance Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowance for doubtful accounts Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized, Shares Authorized Preferred Stock, Shares Issued Preferred stock, shares issued 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 Treasury Stock, Shares Treasury stock, shares Revenues [Abstract] Revenue: Sales Revenue, Services, Net Revenue before reimbursements (net revenue) Reimbursement Revenue Reimbursements Revenues Total revenue Operating income (loss): Operating Expenses [Abstract] Operating expenses: Labor and Related Expense Salaries and employee benefits General and Administrative Expense General and administrative expenses Reimbursed expenses Cost of Reimbursable Expense Restructuring Charge Restructuring charges Restructuring charges Total operating expenses Operating Expenses Operating Income (Loss) Operating income (loss) Nonoperating Income Expense [Abstract] Non-operating income (expense): Investment Income, Net Interest income, net Other Nonoperating Expense Other, net Nonoperating Income (Expense) Net non-operating expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income (loss) before income taxes Loss/ Income before taxes Income Tax Expense (Benefit) Provision for income taxes Net Income (Loss) Attributable to Parent Net income Net income (loss) Net income (loss) Weighted Average Number of Shares Outstanding, Basic Basic weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average common shares outstanding Basic net income (loss) per common share Earnings Per Share, Basic Diluted net income (loss) per common share Earnings Per Share, Diluted Consolidated Statement of Changes in Stockholders Equity [Abstract] Statement [Table] Statement, Equity Components [Axis] Common Stock [Member] Common Stock Treasury Stock [Member] Treasury Stock Additional Paid In Capital [Member] Additional Paid in Capital Retained Earnings [Member] Retained Earnings Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income Equity Component [Domain] Statement [Line Items] Shares, Issued Ending Balance, shares Beginning Balance, shares Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income: Treasury and Common Stock Transactions: Treasury and common stock transactions: Treasury and common stock transactions. Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation Restricted Stock, Value, Shares Issued Net of Tax Withholdings Vesting of restricted stock units, net of tax withholdings Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Vesting of restricted stock units, net of tax withholdings, shares Dividends, Cash Cash dividends declared ($0.39 per share) Dividend Equivalents on Restricted Stock Units Dividend equivalents on restricted stock units Dividend equivalents on restricted stock units. Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation Tax deficit related to stock-based compensation Common Stock, Dividends, Per Share, Declared Cash dividends per share Condensed Consolidated Statements of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows - operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash used in operating activities: Depreciation, Depletion and Amortization Total Depreciation and amortization Write-off of investment Write Off of Investment Deferred Income Tax Expense (Benefit) Deferred income taxes Share-based Compensation Total stock-based compensation expense included in operating income Stock-based compensation expense Provision for Doubtful Accounts Provision charged to income Payments for Restructuring Cash paid for restructuring charges Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Trade and other receivables, net Increase (Decrease) in Accounts and Other Receivables Increase (Decrease) in Accounts Payable, Trade Accounts payable Increase (Decrease) in Accrued Liabilities Accrued expenses Increase (Decrease) in Income Taxes Payable Income taxes recoverable (payable), net Increase (Decrease) in Asset Retirement Obligations Retirement and pension assets and liabilities Increase (Decrease) in Prepaid Expense Prepayments Increase (Decrease) in Other Operating Assets and Liabilities, Net Other assets and liabilities, net Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows - investing activities: Increase (Decrease) in Restricted Cash Restricted cash Payments to Acquire Productive Assets Capital expenditures Total Payments to Acquire Available-for-sale Securities Purchases of available for sale investments Proceeds from Sale of Available-for-sale Securities Proceeds from sales of available for sale investments Payments to Fund Long-term Loans to Related Parties Loan to equity method investment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows- financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Payments of Dividends Cash dividends paid Payments Related to Tax Withholding for Share-based Compensation Payment of employee tax withholdings on equity transactions Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Effect of Exchange Rate on Cash and Cash Equivalents Effect of exchange rate fluctuations on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Basis of Presentation of Interim Financial Information [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis of Presentation of Interim Financial Information Summary of Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Stock-Based Compensation [Abstract] Property and Equipment [Abstract] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Restricted Cash [Abstract] Restricted Assets Disclosure [Text Block] Restricted Cash Investments [Abstract] Fair Value Measurements [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurements Goodwill and Other Intangible Assets [Abstract] Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Other Intangible Assets, Net Components of Net Periodic Benefit Cost [Abstract] Restructuring Charges [Abstract] Restructuring and Impairment Charges Restructuring Charges Other Liabilities Disclosure [Text Block] Other Current and Non-Current Liabilities Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Taxes Segment Information [Abstract] Segment Reporting Disclosure [Text Block] Segment Information Guarantees [Abstract] Guarantees [Text Block] Guarantees Commitments and Contingencies [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Property, Plant and Equipment [Table Text Block] Components of Company's property and equipment Property, Plant and Equipment, Gross Property and equipment, gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Leasehold Improvements [Member] Leasehold improvements [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Net, by Type [Abstract] Components of Company's property and equipment Restricted Cash (Textual) [Abstract] Restricted cash. Restricted Cash (Textual) [Abstract] Warrants and Equity Securities [Member] Warrants and equity securities [Member] Warrants and equity securities. Investments (Textual) [Abstract] Investments. Investments (Textual) [Abstract] Schedule of Cost-method Investments [Table] Schedule of Cost-method Investments [Line Items] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Summary of information with respect to stock-based compensation Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Restricted stock unit activity Restricted Stock Units (RSUs) [Member] Restricted stock unit [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Performance stock unit activity Restricted stock unit activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Stock Units, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Number of Stock Units, Forfeited Weighted-Average Grant-date Fair Value, Ending balance Weighted-Average Grant-date Fair Value, Beginning balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-Average Grant-date Fair Value, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-Average Grant-date Fair Value, Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement by Share Based Payment Award Vested and Converted to Common Stock Weighted-Average Grant-date Fair Value, Vested and converted to common stock Share based compensation arrangement by share based payment award vested and converted to common stock. Share Based Compensation Arrangement by Share Based Payment Award Vested and Converted to Common Stock Shares Number of Stock Units, Vested and converted to common stock Share based compensation arrangement by share based payment award vested and converted to common stock shares. Schedule of Nonvested Performance-based Units Activity [Table Text Block] Performance stock unit activity Performance Shares [Member] Performance stock unit [Member] Stock Based Compensation (Textual) [Abstract] Stock-Based Compensation (Textual) [Abstract] Stock based compensation. Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Expected time to be recognized Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Domain] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Schedule of Goodwill [Table Text Block] Changes in carrying amount of goodwill by segment Europe [Member] Europe [Member] Europe. UNITED STATES Americas [Member] Asia Pacific [Member] Asia Pacific [Member] Asia pacific. Candidate Database [Member] Candidate database [Member] Candidate database. Customer Relationships [Member] Client relationships [Member] Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Weighted Average Life (in years) Finite-Lived Intangible Assets, Accumulated Amortization Accumulated Amortization Schedule of Goodwill [Table] Geographical [Axis] Segment, Geographical [Domain] Goodwill [Line Items] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Acquired Finite-Lived Intangible Assets [Line Items] Goodwill and Other Intangible Assets (Textual) [Abstract] Goodwill and Other Intangible Assets (Textual) [Abstract] Goodwill and other intangible assets. Amortization of Intangible Assets Intangible asset amortization expense, excluding impairment charge Components of net periodic benefit cost Schedule of Net Benefit Costs [Table Text Block] Defined Benefit Plan, Service Cost Service cost Defined Benefit Plan, Interest Cost Interest cost Defined Benefit Plan, Amortization of Gains (Losses) Amortization of net gain Defined Benefit Plan, Net Periodic Benefit Cost Net periodic benefit cost Schedule of Restructuring and Related Costs [Table Text Block] Changes to accrual for restructuring charges Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Type of Restructuring [Domain] Employee Relocation [Member] Employee Related [Member] Restructuring Cost and Reserve [Line Items] Restructuring Reserve [Roll Forward] Changes to accrual for restructuring charges Restructuring Reserve Accrual balance at September 30, 2012 Accrual balance at December 31, 2011 Restructuring Reserve, Settled with Cash Cash payments Restructuring Reserve, Translation Adjustment Exchange rate fluctuations Office Related [Member] Office Related [Member] Office related. Restructuring Charges (Textual) [Abstract] Restructuring Charges (Textual) [Abstract] Restructuring charges. Other Current and Non-Current Liabilities [Abstract] Components of Other Current Liabilities [Table Text Block] Components of other current liabilities Components of other current liabilities. Components of Other Non Current Liabilities [Table Text Block] Components of other non-current liabilities Components of other non-current liabilities. Components of Other Current Liabilities [Abstract] Components of other current liabilities Components of other current liabilities. Other Liabilities, Current Other current liabilities Total other current liabilities Deferred Revenue Deferred revenue Income Taxes (Textual) [Abstract] Income taxes textual. Income Taxes (Textual) [Abstract] Adjusted Full Year Expected Annualized Tax Rate Adjusted full-year expected annualized tax rate Adjusted full year expected annualized tax rate. Effective Income Tax Rate, Continuing Operations Effective income tax rate Global Operations Support [Member] Global Operations Support [Member] Global operations support. Operating Income Before Restructuring Charges Impairment Charges and Other Operating Income Operating income before restructuring and impairment charges Operating income before restructuring charges, impairment charges, and other operating income. Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information, Operating Income (Loss) [Abstract] Revenue, operating income (loss), depreciation, and capital expenditures, by segment Depreciation, Depletion and Amortization [Abstract] Depreciation and amortization: Depreciation Depreciation Expenses All Regions [Member] Total regions [Member] Total Regions. Segment Reporting Information, Additional Information [Abstract] Identifiable assets: Intangible Assets, Net (Including Goodwill) Total Segment Information (Textual) [Abstract] Segment Information (Textual) [Abstract] Segment information. Guarantees (Textual) [Abstract] Guarantees (Textual) [Abstract] Guarantees. Guarantor Obligations, Maximum Exposure, Undiscounted Maximum undiscounted payments under outstanding guarantees Commitments and Contingencies (Textual) [Abstract] Commitments and Contingencies (Textual) [Abstract] Commitments and Contingencies. Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority Proposed adjustment to payroll tax liability Component of Net Periodic Benefit Cost [Abstract] Components of net periodic benefit cost Components of net periodic benefit cost. Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Unrealized gain on available for sale investments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year Estimated Intangible asset amortization expense, excluding impairment charge 2012 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Estimated Intangible asset amortization expense, excluding impairment charge 2013 Finite-Lived Intangible Assets, Amortization Expense, Year Two Estimated Intangible asset amortization expense, excluding impairment charge 2014 Finite-Lived Intangible Assets, Amortization Expense, Year Three Estimated Intangible asset amortization expense, excluding impairment charge 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Four Estimated Intangible asset amortization expense, excluding impairment charge 2016 Finite-Lived Intangible Assets, Net Net Carrying Amount Other intangible assets, net Furniture and Fixtures [Member] Office furniture, fixtures and equipment [Member] Restricted Cash in Support of Lease Guarantees Restricted cash in support of lease guarantees Restricted cash in support of lease guarantees. Aggregate Cost Basis for Non Qualified Deferred Compensation Plan Aggregate cost basis for investments Aggregate cost basis for non qualified deferred compensation plan. Investment Type [Axis] Investment Type Categorization [Domain] Goodwill Translation Adjustments Exchange rate fluctuations Carrying amount of amortizable intangible assets and related accumulated amortization Finite Lived Intangible Assets Net [Abstract] Finite Lived Intangible Assets Gross Gross Carrying Amount Schedule Of Finite Lived Intangible Assets Table [Text Block] Carrying amount of amortizable intangible assets and related accumulated amortization Changes in carrying amount of goodwill by segment Goodwill Roll Forward Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Income tax benefit related to stock-based compensation included in net income Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Number of Stock Units, Vested and converted to common stock Weighted-Average Grant-date Fair Value, Vested and converted to common stock Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Pre-tax unrecognized compensation expense Accrued Restructuring Charges Current Accrued restructuring Accrued restructuring charges current. Other Current Liabilities Other Other Other current liabilities other. Other Non Current Liabilities Other Other Other non current liabilities other. Group One [Member] Group One [Member] Group One. Goodwill and Other Intangible Assets Net [Abstract] Goodwill and other intangible assets, net: Goodwill and other intangible assets net. New Accounting Pronouncements, Policy [Policy Text Block] Recently Adopted Financial Accounting Standards Information with Respect to Stock Based Compensation [Abstract] Summary of information with respect to stock-based compensation Information with respect to stock based compensation. Investments [Table Text Block] Components of Company's investments Investments. Components of Company's investments Long-term Investments [Abstract] Identifiable Assets and Goodwill and Other Intangible Assets [Abstract] Identifiable assets goodwill and other intangible assets, net Identifiable assets and goodwill and other intangible assets. Identifiable Assets and Goodwill and Other Intangible Assets Net by Geographical Segment [Table Text Block] Identifiable assets, and goodwill and other intangible assets, net, by segment Identifiable assets and goodwill and other intangible assets net by geographical segment. Revenue and Operating Income Loss Depreciation and Amortization and Capital Expenditures by Geographical Segment [Table Text Block] Revenue, operating income, depreciation and amortization, and capital expenditures, by segment Revenue and operating income loss depreciation and amortization and capital expenditures by geographical segment. Computer Equipment and Software [Member] Computer equipment and software. Computer equipment and software [Member] Effect on Future Cash Flows, Amount Cash outlays related to restructuring charges accrued Accrued Salaries and Employee Benefits Noncurrent Accrued salaries and employee benefits Accrued salaries and employee benefits noncurrent. Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract] Weighted Average Number Diluted Shares Outstanding Adjustment Dilutive common shares Allowance for Doubtful Accounts [Abstract] Summary of Allowance for Doubtful [Abstract] Summary of Allowance for Doubtful Accounts Summary of allowance for doubtful. Allowance for Doubtful Accounts Receivable Balance at September 30, 2012 Balance at December 31, 2011 Allowance for Doubtful Accounts Receivable, Charge-offs Write-offs Currency in Context of Allowance for Doubtful Currency Currency in context of allowance for doubtful. Prior Program [Member] Prior Program [Member] Prior program. Two Thousand Twelve Program [Member] 2012 Program [Member] Two thousand twelve program. Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Awards Outstanding Property and Equipment (Textual) [Abstract] Property And Equipment (Textual) [Abstract] Property and equipment. Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Testing Goodwill for Impairment Summary of Allowance for Doubtful Accounts Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares authorized or reserved for issuance with respect to awards granted Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Awards granted after May 24, 2022, under 2012 Program Shares available for future awards Revenue [Abstract] Revenue. Revenue: Us Non Qualified Deferred Compensation Plan [Member] U.S. non-qualified deferred compensation plan [Member] Us Non Qualified Deferred Compensation Plan. Other Current and Non Current Liabilities [Abstract] Components of other non-current liabilities Other current and non current liabilities. Accrued Premises Related Cost Non Current Premise related costs Accrued premises related cost non current. Investment [Text Block] Investments Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Allowance for Doubtful Accounts Pension and Other Postretirement Benefits Disclosure [Text Block] Components of Net Periodic Benefit Cost Stock Issued During Period, Value, Treasury Stock Reissued Re-issuance of treasury stock, value Stock Issued During Period, Shares, Treasury Stock Reissued Re-issuance of treasury stock, shares Restructuring Reserve, Settled without Cash Non-cash write-off Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss), net of tax Allowance for Credit Losses on Financing Receivables [Table Text Block] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Stock-based Compensation Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of Stock Units, Ending balance Number of Stock Units, Beginning balance Asset Impairment Charges Impairment charges Impairment charges Payments for (Proceeds from) Other Investing Activities Other, net Stock Options [Member] Stock Options [Member] America [Member] Americas [Member] America. Treasury Stock, Shares, Acquired Purchases of treasury stock, Share Payments for Repurchase of Common Stock Purchases of treasury stock Payments to Acquire Businesses, Net of Cash Acquired Acquisition of business and earnout payments, net of cash acquired Other Payments to Acquire Businesses Acquisition earnout payments Capital Expenditures [Abstract] Capital expenditures: Common Stock, Dividends, Per Share, Cash Paid Cash dividends paid per share Net realized losses on investments Gain (Loss) on Investments