Document and Entity Information [Abstract] Statement, Equity Components [Axis] Equity Component [Domain] Assets Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of the period Cash and cash equivalents at beginning of the period Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Receivables from clients, net Accounts Receivable, Net, Current Unbilled Services Net Current Unbilled services, net Revenues recognized in excess of billings, which are expected to be collected within one year of the balance sheet date, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Income tax receivable Income Taxes Receivable, Current Deferred Tax Assets, Net, Current Deferred income taxes, net Prepaid expenses and other current assets Prepaid expenses and other current assets Sum of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer. Also includes the aggregate carrying amount, as of the balance sheet date, of current assets not separately presented elsewhere in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Current assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation, Current Current assets of discontinued operations Property and equipment, net Property, Plant and Equipment, Net Deferred Tax Assets, Net, Noncurrent Deferred income taxes, net Other non-current assets Other Assets, Noncurrent Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Goodwill Total assets Assets, Total Total assets Liabilities and Stockholders' Equity [Abstract] Liabilities and stockholders' equity Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued expenses Accrued Liabilities, Current Accrued payroll and related benefits Employee-related Liabilities, Current Income tax payable Accrued Income Taxes, Current Deferred revenues Deferred Revenue, Current Current liabilities of discontinued operations Liabilities of Disposal Group, Including Discontinued Operation, Current Current liabilities of discontinued operations Non-current liabilities: Liabilities, Noncurrent [Abstract] Bank borrowings Long-term Debt, Excluding Current Maturities Deferred Rent Credit, Noncurrent Deferred lease incentives Deferred lease incentives Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock; $0.01 par value; 500,000,000 shares authorized; 24,703,317 and 24,208,549 shares issued at March 31, 2012 and December 31, 2011, respectively Common stock, shares issued Common stock, shares issued Common stock, shares authorized Common stock, shares authorized Common stock, par value Common stock, par value Treasury Stock, Value Treasury stock, at cost, 1,777,733 and 1,642,018 shares at March 31, 2012 and December 31, 2011, respectively Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury stock, shares Treasury stock, shares Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Stockholders' Equity Attributable to Parent, Total Ending balance Beginning balance Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Stockholders' Equity, Total Total liabilities and stockholders' equity Revenues and reimbursable expenses: Revenues [Abstract] Revenues Sales Revenue, Services, Net Reimbursable expenses Reimbursement Revenue Reimbursable expenses Direct Costs And Reimbursable Expenses Exclusive Of Depreciation And Amortization Shown In Operating Expenses [Abstract] Direct costs and reimbursable expenses (exclusive of depreciation and amortization shown in operating expenses): Direct costs and reimbursable expenses (exclusive of depreciation and amortization shown in operating expenses). Direct costs Cost of Services Intangible assets amortization Cost of Services, Amortization Reimbursable expenses Cost of Reimbursable Expense Reimbursable expenses Total direct costs and reimbursable expenses Cost of Revenue, Total Total direct costs and reimbursable expenses Operating expenses: Operating Expenses [Abstract] Selling, general and administrative Selling, General and Administrative Expense Restructuring Charges Restructuring charges Restatement related expenses Amounts charged against earnings in the period for expenses incurred related to the financial statement restatement. Restatement related expenses Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Depreciation and amortization Operating Expenses, Total Total operating expenses Total operating expenses Operating Income (Loss) Operating income Nonoperating Income (Expense) [Abstract] Other income (expense): Interest Expense, Net of Interest Income Interest (expense), net of interest income Interest expense, net of interest income The cost of borrowed funds accounted for as interest that was charged against earnings during the period, net of immaterial amounts of interest income recognized during the period associated with banking, investing or other activities. Other income Other Nonoperating Income (Expense) Other income Nonoperating Income (Expense), Total Total other expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income from continuing operations before income tax expense Income (loss) from continuing operations before income tax expense (benefit) Income Tax Expense (Benefit) Income tax expense Income tax expense Income (Loss) from Continuing Operations Attributable to Parent Net income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Income from discontinued operations, net of tax Net Income (Loss) Attributable to Parent Net income Net income Earnings Per Share, Basic [Abstract] Net earnings per basic share: Income (Loss) from Continuing Operations, Per Basic Share Net income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Income from discontinued operations, net of tax Earnings Per Share, Basic Net income Earnings Per Share, Diluted [Abstract] Net earnings per diluted share: Income (Loss) from Continuing Operations, Per Diluted Share Net income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Income from discontinued operations, net of tax Earnings Per Share, Diluted Net income Weighted average shares used in calculating earnings (loss) per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted Average Number of Shares Outstanding, Basic Diluted Weighted Average Number of Shares Outstanding, Diluted Common Stock Common Stock Balance Ending balance, shares Beginning balance, shares Balance at September, 30, 2010, shares Treasury Stock Treasury Stock Additional Paid-In Capital Additional Paid-In Capital Retained Earnings Retained Earnings Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss Comprehensive Income: Comprehensive Income, Net of Tax, Attributable to Parent [Abstract] Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation gain, net of tax Foreign currency translation adjustment, net of tax Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax Unrealized loss on cash flow hedging instrument, net of tax Unrealized gain on cash flow hedging instrument, net of tax Comprehensive income Comprehensive Income, Net of Tax, Attributable to Parent, Total Comprehensive income Issuance of Common Stock in Connection with [Abstract] Issuance of common stock in connection with: Issuance of common stock in connection with. Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted stock awards, net of cancellations, shares Restricted stock awards, net of cancellations Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Stock Options Exercised Exercise of stock options, shares Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Share-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value Adjustments to Additional Paid in Capital, Tax Effect from Share-based Compensation Income tax benefit on share-based compensation Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash used by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Share-based compensation Share-based Compensation Allowances for Doubtful Accounts and Unbilled Services Allowances for doubtful accounts and unbilled services Amount of the current period expense and reduction of revenue charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables and unbilled services, to an amount that approximates their net realizable value (the amount expected to be collected). Deferred income taxes Deferred Income Tax Expense (Benefit) Changes in operating assets and liabilities, net of businesses acquired: Increase (Decrease) in Operating Capital [Abstract] Increase (Decrease) in Accounts Receivable Decrease in receivables from clients Increase (Decrease) in Unbilled Receivables Decrease (increase) in unbilled services Increase Decrease in Current Income Tax Receivable Payable Net Decrease (increase) in current income tax receivable, net The net change during the period in the amount of cash payments due to or due from taxing authorities for taxes that are based on the reporting entity's earnings. Increase (Decrease) in Other Operating Assets Decrease in other assets Increase in accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Employee Related Liabilities (Decrease) in accrued payroll and related benefits Increase (Decrease) in Deferred Revenue (Decrease) increase in deferred revenues Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment, net Payments for (Proceeds from) Life Insurance Policies Net investment in life insurance policies Payments to Acquire Businesses, Net of Cash Acquired Purchases of businesses Proceeds from Divestiture of Businesses Sales of businesses Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from exercise of stock options Proceeds from Stock Options Exercised Tax benefit from share-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Proceeds from borrowings under credit facility Proceeds from Long-term Lines of Credit Repayments of Long-term Debt Repayments on credit facility Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Discontinued Operations Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Earnings Per Share Earnings Per Share [Text Block] Earnings Per Share [Abstract] Borrowings Debt Disclosure [Text Block] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Instruments and Hedging Activity Comprehensive Income Segment Information Segment Reporting Disclosure [Text Block] Amendment Flag Current Fiscal Year End Date Document Period End Date Document Type Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Filer Category Entity Registrant Name Document Fiscal Period Focus Document Fiscal Year Focus Consolidated Balance Sheets [Abstract] Consolidated Statements of Cash Flows [Abstract] Consolidated Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Line Items] Cash and cash equivalents classified as discontinued operations Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Restructuring and Related Activities Disclosure [Text Block] Restructuring Charges Accrued Consideration for Business Acquisitions Current Accrued consideration for business acquisitions, current portion The accrual for payments to acquire businesses including earn-out payments, which represents additional purchase price earned by selling shareholders subsequent to the business combination as certain financial performance targets and conditions are met, and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date. Gain (Loss) on Sale of Property Plant Equipment Gain on disposal of property and equipment Non Cash Portion of Litigation Settlement Non-cash portion of litigation settlement Represents the non-cash portion of the amount of expense (income) recognized in the period to settle pending or threatened litigation and insurance claims. Income Tax Disclosure [Text Block] Income Taxes Payments Related to Tax Withholding for Share-based Compensation Shares redeemed for employee tax withholdings Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Cash and cash equivalents at end of the period Cash and cash equivalents at beginning of the period Commitments Contingencies and Guarantees [Text Block] Commitments, Contingencies and Guarantees Goodwill and Intangible Assets [Abstract] Description of Business and Basis of Presentation [Abstract] Comprehensive Income [Abstract] Discontinued Operations [Abstract] Borrowings [Abstract] Restructuring Charges [Abstract] Derivative Instruments and Hedging Activity [Abstract] Fair Value Disclosures [Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments [Abstract] Commitments, Contingencies and Guarantees [Abstract] Segment Information [Abstract] Shares Redeemed for Employee Tax Withholdings Shares withheld for employee tax withholdings Shares redeemed for employee tax withholdings. Income Taxes [Abstract] Liabilities, Current, Total Total current liabilities Revenues, Total Total revenues and reimbursable expenses Assets, Current, Total Total current assets Liabilities, Noncurrent, Total Total non-current liabilities Deferred Compensation and Other Liabilities Deferred compensation and other liabilities Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer). Also includes the aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet due to materiality considerations. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Litigation settlements, net Gain (Loss) Related to Litigation Settlement Gain (Loss) Related to Litigation Settlement, Total Litigation settlement, net Nature Of Operations [Text Block] Description of Business Comprehensive Income Note [Text Block] Shares Redeemed for Employee tax Withholdings Shares Shares withheld for employee tax withholdings, shares Shares Redeemed for Employee tax withholdings, shares. Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Loss (gain) on sale of business Principal Payments of Notes Payable and Capital Lease Obligations Payments of capital lease obligations Principal payments of notes payable and capital lease obligations. Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent, Total Non-current liabilities of discontinued operations Deferred Tax Liabilities, Noncurrent Deferred income taxes Commitments and Contingencies Commitments and Contingencies Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income Other comprehensive income Basis of Accounting [Text Block] Basis of Presentation New Accounting Pronouncements [Abstract] Accounting Changes and Error Corrections [Text Block] New Accounting Pronouncements Consolidated Statements of Earnings and Other Comprehensive Income [Abstract] Consolidated Statements Of Earnings And Other Comprehensive Income.