Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss) Attributable to Parent Adjustments to reconcile net income to net cash provided by operating activities, net of acquisitions: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Non-cash interest expense and other Other Noncash Expense Loss on debt extinguishment Gains (Losses) on Extinguishment of Debt Change in fair value of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Increase in allowances for doubtful accounts and sales credits Provision for Doubtful Accounts Provision for deferred income taxes Deferred Income Tax Expense (Benefit) Share-based compensation Share-based Compensation Excess tax benefits from share-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Loss on disposal or sale of fixed assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Changes in assets and liabilities, net of effects from acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Accounts receivable, subcontractor Increase Decrease in Accounts Receivables, subcontractor Increase Decrease in Accounts Receivables, subcontractor Income taxes receivable Increase (Decrease) in Income Taxes Receivable Prepaid expenses Increase (Decrease) in Prepaid Expense Other current assets Increase (Decrease) in Other Current Assets Other assets Increase (Decrease) in Other Operating Assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued compensation and benefits Increase (Decrease) in Employee Related Liabilities Other liabilities Increase (Decrease) in Other Operating Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Restricted cash, cash equivalents and investments balance Increase (Decrease) in Restricted Cash for Operating Activities 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] Purchase and development of fixed assets Payments to Acquire Property, Plant, and Equipment Equity method investment in Pipeline Health Holdings LLC Payments to Acquire Equity Method Investments Payments to fund deferred compensation plan Payments to Acquire Life Insurance Policies Cash paid for acquisitions, net of cash received Payments to Acquire Businesses, Net of Cash Acquired Cash paid for working capital adjustments for prior year acquisition Payments for Previous Acquisition Change in restricted cash, cash equivalents and investments balance Increase (Decrease) in Restricted Cash 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] Capital lease repayments Repayments of Long-term Capital Lease Obligations Payments on term loan Repayments of Secured Debt Proceeds from term loan Proceeds from Issuance of Secured Debt Payments on revolving credit facility Repayments of Lines of Credit Proceeds from revolving credit facility Proceeds from Lines of Credit Payment of financing costs Payments of Financing Costs Proceeds from exercise of equity awards Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Cash paid for shares withheld for taxes Payments Related to Tax Withholding for Share-based Compensation Excess tax benefits from share-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Net cash provided by (used in) 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) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for interest (net of $173 and $83 capitalized for the nine months ended September 30, 2015 and 2014, respectively) Interest Paid, Net Cash paid for income taxes Income Taxes Paid, Net Acquisitions: Noncash Investing and Financing Items [Abstract] Fair value of tangible assets acquired in acquisitions, net of cash received Fair Value of Assets Acquired Goodwill Supplemental Disclosures of Non Cash Investing and Financing Activities Goodwill Supplemental disclosures of non-cash investing and financing activities Goodwill. Intangible assets Supplemental Disclosures of Non Cash Investing and Financing Activities Intangible Assets Supplemental disclosures of non cash investing and financing activities intangible assets. Liabilities assumed Liabilities Assumed Holdback provision Noncash Or Part Noncash Acquisition, Holdback Provision Noncash Or Part Noncash Acquisition, Holdback Provision Earn-out liabilities Noncash Or Part Noncash Acquisition, Earn-Out Liability Noncash Or Part Noncash Acquisition, Earn-Out Liability Net cash paid for acquisitions Supplemental disclosures of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Purchase of fixed assets recorded in accounts payable and accrued expenses Purchase of fixed assets recorded in accounts payable and accrued expenses Purchase of fixed assets recorded in accounts payable and accrued expenses Convertible loan converted to equity method investment in Pipeline Health Holdings LLC Debt Conversion, Converted Instrument, Amount Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Fair Value Disclosures [Abstract] Schedule of financial assets and liabilities measured at fair value on recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Reconciliations of changes in the fair value of contingent consideration liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Statement of Financial Position [Abstract] Accounts receivable, allowance Allowance for Doubtful Accounts Receivable, Current Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Preferred stock, par value (in dollars per share) 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 (in dollars per share) 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 Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap [Member] Interest Rate Swap [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Securities (Assets) [Member] Securities (Assets) [Member] Derivative Financial Instruments, Assets [Member] Derivative Financial Instruments, Assets [Member] Contingent Consideration [Member] Contingent Consideration [Member] Contingent Consideration [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) [Member] Fair Value, Inputs, Level 3 [Member] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] US Treasury securities [Member] US Treasury Securities [Member] Money Market Funds [Member] Money Market Funds [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Schedule of financial assets and liabilities measured at fair value on recurring basis Assets, Fair Value Disclosure [Abstract] Financial assets and liabilities measured at fair value Fair Value, Net Asset (Liability) Organization, Consolidation and Presentation of Financial Statements [Abstract] Use of Estimates Use of Estimates, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Net Income per Common Share Earnings Per Share, Policy [Policy Text Block] Segment Information Segment Reporting, Policy [Policy Text Block] Derivative Instruments Derivatives, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value Measurement, Policy [Policy Text Block] Balance Sheet Related Disclosures [Abstract] BALANCE SHEET DETAILS Supplemental Balance Sheet Disclosures [Text Block] Business Combinations [Abstract] Summary of Fair Value and Useful Life of Each Intangible Asset Acquired Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Business Acquisition, Pro Forma Information Business Acquisition, Pro Forma Information [Table Text Block] BUSINESS COMBINATIONS Business Combination Disclosure [Text Block] Earnings Per Share [Abstract] Computation of basic and diluted net income per common share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Subsequent Events [Abstract] SUBSEQUENT EVENTS Subsequent Events [Text Block] Operating lease agreement term Lessee Leasing Arrangements, Operating Leases, Term of Contract Total minimum lease payments Operating Leases, Future Minimum Payments Due Income Tax Disclosure [Abstract] Income Tax Examination [Table] Income Tax Examination [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast [Member] Scenario, Forecast [Member] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Tax Authority [Member] Domestic Tax Authority [Member] State Jurisdiction [Member] State and Local Jurisdiction [Member] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Internal Revenue Service (IRS) [Member] Internal Revenue Service (IRS) [Member] Income Tax Examination [Line Items] Income Tax Examination [Line Items] Tax settlement amount Tax Adjustments, Settlements, and Unusual Provisions Income tax benefits to be recorded in connection with settlement Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Assets [Member] Other Noncurrent Assets [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Derivative [Line Items] Derivative [Line Items] Interest rate swap, face amount Derivative Asset, Notional Amount Fixed rate on interest rate swap, percent Derivative, Fixed Interest Rate Fair value of interest rate swap Derivative Asset Other current assets: Other Assets [Abstract] Restricted cash Restricted Cash and Cash Equivalents Income taxes receivable Income Taxes Receivable, Current Other Other Assets, Miscellaneous, Current Other current assets Other Assets, Current Fixed assets: Property, Plant and Equipment, Net [Abstract] Furniture and equipment Furniture and Fixtures, Gross Software Capitalized Computer Software, Gross Leasehold improvements Leasehold Improvements, Gross Fixed assets, gross Property, Plant and Equipment, Gross Accumulated depreciation and amortization Fixed assets, net Property, Plant and Equipment, Net Accounts payable and accrued expenses: Accounts Payable and Accrued Liabilities, Current [Abstract] Trade accounts payable Accounts Payable, Trade, Current Subcontractor payable Accounts Payable to Subcontractor Accounts payable to subcontractor. Professional liability reserve Self Insurance Reserve, Current Overdraft Bank Overdrafts Other Other Accounts Payable and Accrued Liabilities Accounts payable and accrued expenses Accounts Payable And Accrued Expenses, Excluding Accrued Compensation And Benefits, Current Accounts Payable And Accrued Expenses, Excluding Accrued Compensation And Benefits, Current Accrued compensation and benefits: Employee-related Liabilities [Abstract] Accrued payroll Accrued Salaries, Current Accrued bonuses Accrued Bonuses Accrued travel expense Accrued Travel Expense Accrued Travel Expense Accrued health insurance reserve Accrued Insurance, Current Accrued workers compensation reserve Workers' Compensation Liability, Current Deferred compensation Deferred Compensation Liability, Current Other Other Employee Related Liabilities, Current Accrued compensation and benefits Employee-related Liabilities, Current BASIS OF PRESENTATION Basis of Accounting [Text Block] Schedule of Supplemental Balance Sheet Disclosures Schedule of Supplemental Balance Sheet Disclosures [Table Text Block] Schedule of Supplemental Balance Sheet Disclosures [Table Text Block] Earn-out Tier 1 [Member] Earn-out Tier 1 [Member] Earn-out Tier 1 [Member] Earn-out Tier 2 [Member] Earn-out Tier 2 [Member] Earn-out Tier 2 [Member] Earn-out Tier 3 [Member] Earn-out Tier 3 [Member] Earn-out Tier 3 [Member] Earn-out Tier 4 [Member] Earn-out Tier 4 [Member] Earn-out Tier 4 [Member] Earn-out Tier 5 [Member] Earn-out Tier 5 [Member] Earn-out Tier 5 [Member] Earn-out Tier 6 [Member] Earn-out Tier 6 [Member] Earn-out Tier 6 [Member] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Financial Performance Of Calendar Year 2015 [Member] Financial Performance Of Calendar Year 2015 [Member] Financial Performance of Calendar Year 2015 [Member] Financial Performance Of Calendar Year 2016 [Member] Financial Performance Of Calendar Year 2016 [Member] Financial Performance Of Calendar Year 2016 [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Avantas Acquisition [Member] Avantas Acquisition [Member] Avantas Acquisition [Member] The First String Healthcare Acquisition [Member] The First String Healthcare Acquisition [Member] The First String Healthcare Acquisition [Member] Fair Value, Inputs, Level 3 [Member] Contingent earn-out based on future operating performance Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Number of earn-out tiers Business Combination, Contingent Consideration Arrangements, Number Of Earn-out Tiers Business Combination, Contingent Consideration Arrangements, Number Of Earn-out Tiers Contingent earn-out Business Combination, Contingent Consideration, Liability Decrease in operating expenses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Change in fair value of contingent consideration earn-out liability from Avantas acquisition Additional contingent consideration earn-out liability from TFS acquisition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) Ending balance Common stock excluded from calculation of EPS Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Computation of basic and diluted net income per common share Computation of Basic and Diluted Net Income Per Common Share [Abstract] Computation of basic and diluted net income per common share. Net income per common share - basic (in dollars per share) Earnings Per Share, Basic Net income per common share - diluted (in dollars per share) Earnings Per Share, Diluted Weighted average common shares outstanding - basic Weighted Average Number of Shares Outstanding, Basic Plus dilutive effect of potential common shares Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average common shares outstanding - diluted Weighted Average Number of Shares Outstanding, Diluted ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable, net of allowances of $7,460 and $4,515 at September 30, 2015 and December 31, 2014, respectively Accounts Receivable, Net, Current Accounts receivable, subcontractor Accounts receivable, subcontractor Accounts receivable, subcontractor Deferred income taxes, net Deferred Tax Assets, Net of Valuation Allowance, Current Prepaid expenses Prepaid Expense, Current Other current assets Total current assets Assets, Current Restricted cash, cash equivalents and investments Restricted Cash and Cash Equivalents, Noncurrent Fixed assets, net of accumulated depreciation of $74,460 and $68,814 at September 30, 2015 and December 31, 2014, respectively Other assets Other Assets, Noncurrent Goodwill Goodwill Intangible assets, net of accumulated amortization of $50,725 and $41,963 at September 30, 2015 and December 31, 2014, respectively Intangible Assets, Net (Excluding Goodwill) Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable and accrued expenses Accounts Payable, Current Accrued compensation and benefits Current portion of revolving credit facility Line of Credit, Current Current portion of notes payable Notes Payable, Current Deferred revenue Deferred Revenue, Current Other current liabilities Other Liabilities, Current Total current liabilities Liabilities, Current Revolving credit facility Long-term Line of Credit, Noncurrent Notes payable Notes Payable, Noncurrent Deferred income taxes, net Deferred Tax Liabilities, Net, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value; 10,000 shares authorized; none issued and outstanding at September 30, 2015 and December 31, 2014 Preferred Stock, Value, Issued Common stock, $0.01 par value; 200,000 shares authorized; 47,694 and 46,639 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Onward Healthcare Acquisition [Member] Onward Healthcare Acquisition [Member] Onward Healthcare Acquisition [Member] Earn-Out Payment, Payable in 2016 Based on TFS Results in 2015 [Member] Earn-Out Payment, Performance Condition One [Member] Earn-Out Payment, Performance Condition One [Member] Earn-Out Payment, Payable in 2017 Based on TFS Results in 2016 [Member] Earn-Out Payment, Performance Condition Two [Member] Earn-Out Payment, Performance Condition Two [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Tradenames and trademarks [Member] Trademarks and Trade Names [Member] Customer relationships [Member] Customer Relationships [Member] Staffing database [Member] Database Rights [Member] Technologies [Member] Technology-Based Intangible Assets [Member] Noncompete agreements [Member] Noncompete Agreements [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Nurse and allied healthcare staffing [Member] Nurse and Allied Healthcare Staffing [Member] Nurse and allied healthcare staffing. Locum tenens staffing [Member] Locum Tenens Staffing [Member] Locum tenens staffing. Business Acquisition [Line Items] Business Acquisition [Line Items] Business Combination, Description Business Combination, Description [Abstract] Total purchase price of the acquisition Business Combination, Consideration Transferred Cash consideration Payments to Acquire Businesses, Gross Fair value of contingent earn-out Contingent earn-out future payments Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized Number of subsidiaries acquired with parent Business Combination, Number Of Subsidiaries Acquired With Entity Business Combination, Number Of Subsidiaries Acquired With Entity Cash holdback for potential claims Business Combination, Indemnification Assets, Amount as of Acquisition Date Contingent earn-out Business Combination, Contingent Consideration, Asset Additional cash paid for working capital adjustment settlement Allocation of Purchase Price Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] Fair value of assets acquired Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Tangible Assets Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Tangible Assets Liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Identified intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Goodwill Accounts receivable acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Accounts payable assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Weighted average useful life of intangible assets Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Useful life Finite-Lived Intangible Asset, Useful Life Business Acquisition, Pro Forma Information [Abstract] Business Acquisition, Pro Forma Information [Abstract] Actual acquiree revenue since date of acquisition Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Actual acquiree income before income taxes since date of acquisition Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Pro forma revenue Business Acquisition, Pro Forma Revenue Pro forma net income Business Acquisition, Pro Forma Net Income (Loss) Net income per common share, basic (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Net income per common share, diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Revenue Recognition [Abstract] Payables to subcontractor Statement of Comprehensive Income [Abstract] Revenue Revenues Cost of revenue Cost of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Selling, general and administrative Selling, General and Administrative Expense Depreciation and amortization Total operating expenses Operating Expenses Income from operations Operating Income (Loss) Interest expense, net (including loss on debt extinguishment of $3,113 for the nine months ended September 30, 2014), and other Interest Expense Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Unrealized loss on cash flow hedge, net of income taxes Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net income per common share: Basic (in dollars per share) Diluted (in dollars per share) Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (shares) Diluted (shares) Segment Reporting [Abstract] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Reportable business segments Number of Operating Segments Reconciliation Of Revenue From Segments To Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating segments [Member] Operating Segments [Member] Corporate, non-segment [Member] Corporate, Non-Segment [Member] Physician permanent placement services [Member] Physician Permanent Placement Services [Member] Physician permanent placement services. Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Schedule of reconciliation of revenue and segment operating income by reportable segment to consolidated results Segment Reconciliation [Abstract] Operating Income Unallocated corporate overhead Unallocated Corporate Overhead Unallocated corporate overhead. Interest expense, net (including loss on debt extinguishment of $3,113 for the nine months ended September 30, 2014), and other Income before income taxes INCOME TAXES Income Tax Disclosure [Text Block] FAIR VALUE MEASUREMENT Fair Value Disclosures [Text Block] NET INCOME PER COMMON SHARE Earnings Per Share [Text Block] Interest capitalized Interest Paid, Capitalized Document and Entity Information [Abstract] Document and entity information. Entity Registrant Name Entity Registrant Name Entity Central Index Key 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 Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Schedule of reconciliation of revenue and segment operating income by reportable segment to consolidated results Schedule of Segment Reporting Information, by Segment [Table Text Block] Subsequent Event [Table] Subsequent Event [Table] Millican Solutions, Inc. [Member] Millican Solutions, Inc. [Member] Millican Solutions, Inc. [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] REVENUE RECOGNITION Significant Accounting Policies [Text Block] DERIVATIVE INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block]