Document and Entity Information [Abstract] Document and entity information. Statement, Equity Components [Axis] Equity Component [Domain] Assets Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value 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 income taxes, net Deferred Tax Assets, Net, Current 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 Total current assets Assets of Disposal Group, Including Discontinued Operation, Current Total current assets Assets, Current, Total Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Other non-current assets Other Assets, Noncurrent Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Carrying amount of total goodwill Goodwill, Beginning balance Goodwill, Ending balance Goodwill Total assets Assets, Total Liabilities and stockholders' equity Liabilities and Stockholders' Equity [Abstract] 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 Total current liabilities Liabilities of Disposal Group, Including Discontinued Operation, Current Total current liabilities Liabilities, Current, Total Non-current liabilities: Liabilities, Noncurrent [Abstract] Long-term Debt, Excluding Current Maturities Borrowings outstanding under credit facility Bank borrowings Deferred lease incentives Deferred Rent Credit, Noncurrent Total non-current liabilities Liabilities, Noncurrent, Total Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Common stock; $0.01 par value; 500,000,000 shares authorized; 24,793,327 and 24,208,549 shares issued at December 31, 2012 and December 31, 2011, respectively Common Stock, Value, Issued Common stock, shares issued Common Stock, Shares, Issued Common stock, shares authorized Common Stock, Shares Authorized Common stock, par value Common Stock, Par or Stated Value Per Share Treasury stock, at cost, 1,880,809 and 1,642,018 shares at December 31, 2012 and December 31, 2011, respectively Treasury Stock, Value 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 Total stockholders' equity Beginning Balance Ending Balance Stockholders' Equity Attributable to Parent, Total Total liabilities and stockholders' equity Liabilities and Stockholders' Equity, Total Revenues and reimbursable expenses: Revenues [Abstract] Revenues Sales Revenue, Services, Net Reimbursable expenses Reimbursement Revenue Total revenues and reimbursable expenses Total revenues and reimbursable expenses Revenues, Total 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 Total direct costs and reimbursable expenses Cost of Revenue, Total Operating expenses: Operating Expenses [Abstract] Selling, general and administrative Selling, General and Administrative Expense Restructuring charges Pre-tax restructuring expenses Restructuring Charges Restatement Related Expenses Restatement related expenses Amounts charged against earnings in the period for expenses incurred related to the financial statement restatement. Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Total operating expenses Operating Expenses, Total Operating income Operating income Operating Income (Loss) Other income (expense), net: Nonoperating Income (Expense) [Abstract] 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 (expense), net Other Nonoperating Income (Expense) Total other expense, net Other expense Nonoperating Income (Expense), Total Income from continuing operations before income tax expense Total Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income from continuing operations Net income from continuing operations Net income from continuing operations Income (Loss) from Continuing Operations Attributable to Parent Net income (loss) from discontinued operations Income (loss) from discontinued operations (including loss on disposal of $1.9 million in 2011 and gain on disposal of $1.2 million in 2010), net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net income Net income Net Income (Loss) Attributable to Parent Net earnings per basic share: Earnings Per Share, Basic [Abstract] Net income from continuing operations Income (Loss) from Continuing Operations, Per Basic Share Income from discontinued operations, net of tax Income (loss) from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Net income Net income Earnings Per Share, Basic Net earnings per diluted share: Earnings Per Share, Diluted [Abstract] Net income from continuing operations Income (Loss) from Continuing Operations, Per Diluted Share Income (loss) from discontinued operations, net of tax Income from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Net income Net income Earnings Per Share, Diluted Weighted average shares used in calculating earnings (loss) per share: Weighted average shares used in calculating earnings per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted average common shares outstanding - basic Weighted Average Number of Shares Outstanding, Basic Diluted Weighted average common shares outstanding - diluted Weighted Average Number of Shares Outstanding, Diluted Common Stock Common Stock [Member] Beginning Balance, shares Ending Balance, shares Shares, Issued Treasury Stock Treasury Stock [Member] Additional Paid-In Capital Additional Paid-In Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Loss [Member] Comprehensive income: Components of comprehensive income Comprehensive Income, Net of Tax, Attributable to Parent [Abstract] Comprehensive income Comprehensive income Comprehensive Income, Net of Tax, Attributable to Parent, Total Issuance of Common Stock in Connection with [Abstract] Issuance of common stock in connection with: Issuance of common stock in connection with. Restricted stock awards, net of cancellations, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted stock awards, net of cancellations Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Exercise of stock options, shares Exercised, Number of Options Stock Issued During Period, Shares, Stock Options Exercised 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 Income tax (deficit) benefit on share based compensation Adjustments to Additional Paid in Capital, Tax Effect from 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 provided 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). Total deferred Deferred Income Tax Expense (Benefit) Changes in operating assets and liabilities, net of businesses acquired: Increase (Decrease) in Operating Capital [Abstract] Decrease (increase) in receivables from clients Increase (Decrease) in Accounts Receivable Decrease (increase) in unbilled services Increase (Decrease) in Unbilled Receivables Increase Decrease in Current Income Tax Receivable Payable Net Decrease (increase) in current income tax receivable / payable, 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. Decrease (increase) in other assets Increase (Decrease) in Other Operating Assets (Decrease) increase in accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities (Decrease) increase in accrued payroll and related benefits Increase (Decrease) in Employee Related Liabilities (Decrease) increase in deferred revenues Increase (Decrease) in Deferred Revenue 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, net Payments to Acquire Property, Plant, and Equipment Net (investment in) surrender of life insurance policies Payments for (Proceeds from) Life Insurance Policies Purchases of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired 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 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 on credit facility Repayments of Long-term Debt Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Description of Business Nature Of Operations [Text Block] Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] 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 Instrument and Hedging Activity Derivative Instruments and Hedging Activities Disclosure [Text Block] Comprehensive Income Comprehensive Income Note [Text Block] 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 Charges Restructuring and Related Activities Disclosure [Text Block] 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. Loss on disposal of property and equipment Gain (Loss) on Sale of Property Plant Equipment Non Cash Portion of Litigation Settlement Non-cash portion of litigation settlements 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 Taxes Income Tax Disclosure [Text Block] Income Taxes [Abstract] Shares redeemed for employee tax withholdings Payments Related to Tax Withholding for Share-based Compensation Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Commitments, Contingencies and Guarantees Commitments Contingencies and Guarantees [Text Block] Goodwill and Intangible Assets [Abstract] Description of Business [Abstract] Comprehensive Income [Abstract] Discontinued Operations [Abstract] Borrowings [Abstract] Restructuring Charges [Abstract] Derivative Instrument and Hedging Activity [Abstract] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Fair Value of Financial Instruments [Abstract] Commitments, Contingencies and Guarantees [Abstract] Segment Information [Abstract] Shares Redeemed for Employee Tax Withholdings Shares redeemed for employee tax withholdings Shares redeemed for employee tax withholdings. 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 Shares Redeemed for Employee tax Withholdings Shares Shares redeemed for employee tax withholdings, shares Shares redeemed for employee tax withholdings, shares. Principal Payments of Notes Payable and Capital Lease Obligations Payments of capital lease obligations Principal payments of notes payable and capital lease obligations. Non-current liabilities of discontinued operations Other non-current liabilities Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent Deferred income taxes Deferred Tax Liabilities, Noncurrent Commitments and Contingencies Commitments and Contingencies Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Foreign currency translation gain (loss), net of tax Foreign currency translation (loss) gain, net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Unrealized (loss) gain on cash flow hedging instruments, net of tax Unrealized (loss) gain on cash flow hedging instruments, net of tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Segment Reporting Segment Reporting, Policy [Policy Text Block] Summarized operating results of discontinued operations Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Income (loss) from discontinued operations before income tax expense Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Summarized operating results of discontinued operations Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Revenues Disposal Group, Including Discontinued Operation, Revenue Changes in the carrying amount of goodwill Schedule of Goodwill [Table Text Block] Intangible assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Goodwill recorded in connection with business combinations Goodwill, Acquired During Period Goodwill impairment charges Non-cash goodwill impairment charges related to our Financial Consulting segment Goodwill, Impairment Loss Foreign currency translation Goodwill, Translation Adjustments Health and Education Consulting [Member] Health and Education Consulting [Member] Health and education consulting. Financial Consulting [Member] Financial Consulting [Member] Financial consulting. Customer relationships [Member] Customer Relationships [Member] Technology and Software [Member] Technology and software [Member] Technology and software. Non-competition agreements [Member] Non-competition Agreements [Member] Trade names [Member] Trade Names [Member] Intangible assets Finite-Lived Intangible Assets, Net [Abstract] Gross Carrying Amount Finite-Lived Intangible Assets, Gross