Proceeds from sales of divested operations Proceeds from Divestiture of Businesses SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Restricted stock units and awards (in shares) Incremental Common Shares Attributable To Restricted Stock Units And Awards Incremental common shares attributable to restricted stock awards. Cash equivalents included in funds held for clients Cash Equivalents Included In Funds Held For Clients Cash equivalents included in funds held for clients. Statistical Measurement [Domain] Statistical Measurement [Domain] Other current asset Other Current Assets [Member] Summary of Activities Related to Investments Debt Securities, Available-for-Sale [Table Text Block] Stock options (in shares) Incremental Common Shares Attributable To Stock Options Incremental common shares attributable to stock options. Percentage of initial grant, tranche two Share Based Compensation Arrangements By Share Based Payment Award, Performance Stock, Percentage Of Initial Grant, Tranche Two Share Based Compensation Arrangements By Share Based Payment Award, Performance Stock, Percentage Of Initial Grant, Tranche Two Restricted cash Restricted Cash, Current Award Timing Predetermined Award Timing Predetermined [Flag] Unrealized gain (loss) on available-for-sale securities, income tax expense (benefit) OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Entity File Number Entity File Number Additional Paid In Capital Additional Paid-in Capital [Member] Interest rate swaps Interest Rate Swap [Member] Other non-current asset Other Noncurrent Assets [Member] Fair market value adjustment Available For Sale Securities Debt Securities Fair Market Value Adjustment Available-for-sale securities, debt securities, fair market value adjustment. Tabular List, Table Tabular List [Table Text Block] Basic Earnings Per Share, Basic [Abstract] Common stock issued (in shares) Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Restricted stock units and awards Restricted Stock or Unit Expense Client fund obligations Client Fund Obligations Client fund obligations. Accounts payable Increase (Decrease) in Accounts Payable Annual amortization rate, year five Debt Instrument, Annual Principal Amortization Payments Rate, Year Five Debt Instrument, Annual Principal Amortization Payments Rate, Year Five Percentage of initial grant, tranche one Share Based Compensation Arrangements By Share Based Payment Award, Performance Stock, Percentage Of Initial Grant, Tranche One Share Based Compensation Arrangements By Share Based Payment Award, Performance Stock, Percentage Of Initial Grant, Tranche One Goodwill [Line Items] Goodwill [Line Items] Share-based Payment Arrangement Share-Based Payment Arrangement [Member] Indirect repurchase of shares for minimum tax withholding Indirect repurchase of shares for minimum tax withholding Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Annual amortization rate third and fourth years Debt Instrument, Annual Principal Amortization Payments Rate, Years Three And Four Debt Instrument, Annual Principal Amortization Payments Rate, Years Three And Four Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Schedule Of Common Stock [Table] Schedule Of Common Stock [Table] Schedule Of Common Stock [Table] Summary of Unsecured Credit Facility Schedule of Line of Credit Facilities [Table Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Debt Securities, Available for Sale [Roll Forward] Debt Securities, Available for Sale [Roll Forward] Debt Securities, Available for Sale Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Unbilled revenue, at net realizable value Unbilled Receivables, Current Summary of Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Outstanding line of credit Short-Term Debt Summary of Changes to the Allowance for Doubtful Accounts on Accounts Receivable Schedule Of Changes In Allowance For Doubtful Accounts [Table Text Block] Schedule of changes in allowance for doubtful accounts. Adjustment to Compensation, Amount Adjustment to Compensation Amount Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments and contingencies. Other assets Increase (Decrease) in Other Operating Assets Basis of Consolidation Consolidation, Policy [Policy Text Block] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Notional amount, asset Derivative Asset, Notional Amount Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Certified Deposits and Other Depository Assets Certified Deposits And Other Depository Assets [Member] Certified deposits and other depository assets. Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-Sale [Table] Insider Trading Policies and Procedures [Line Items] Total stock-based compensation expense Share-Based Payment Arrangement, Expense Gain from working capital adjustments Business Combination, Gain (Loss) From Working Capital Adjustments Business Combination, Gain (Loss) From Working Capital Adjustments Goodwill and Intangible Assets Disclosure [Abstract] Current assets: Assets, Current [Abstract] Total liabilities and stockholders’ equity Liabilities and Equity Business acquisitions (in shares) Stock Issued During Period, Shares, Acquisitions Number of reporting units impacted by organizational changes Number Of Reporting Units Impacted By Organizational Changes Number Of Reporting Units Impacted By Organizational Changes Cover [Abstract] Cover [Abstract] Maximum Maximum [Member] National Practice National Practices [Member] National practices. Accounting Policies [Abstract] Accounting Policies [Abstract] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Treasury Stock Treasury Stock, Common [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount LIABILITIES Liabilities [Abstract] BUSINESS COMBINATIONS Business Combination [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Share Repurchase Program Share Repurchase Program [Member] Share Repurchase Program Income before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Other non-current liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Goodwill impairment loss Goodwill, Impairment Loss Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Short-term debt Total short-term debt Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Short-term debt Short-Term Debt [Abstract] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Name Measure Name Net income Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income taxes payable Accrued Income Taxes, Noncurrent Summary of Compensation Expense for Stock-Based Awards Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Secured Debt Secured Debt [Member] Lease liabilities Operating Lease, Liability, Current Maturities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Summary of Change in Level 3 Fair Values of Contingent Purchase Price Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Deferred income taxes, net Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Goodwill and other intangible assets, net Intangible Assets, Net (Including Goodwill) Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Award Timing Method Award Timing Method [Text Block] Basic earnings per share (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Litigation Case [Domain] Litigation Case [Domain] Award Type [Axis] Award Type [Axis] Summary of Other Comprehensive (Loss) Income and Tax Impact Comprehensive Income (Loss) [Table Text Block] Total assets Assets Interest Rate Swap, July 14, 2030 Expiration Interest Rate Swap, July 14, 2030 Expiration [Member] Interest Rate Swap, July 14, 2030 Expiration Trading Symbol Trading Symbol Facility costs Facility Expense Facility Expense Exercised or released (in dollars per share) Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Restricted stock units and awards and performance share units (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Interest Rate Swap, July 2027 Expiration Interest Rate Swap, July 2027 Expiration [Member] Interest Rate Swap, July 2027 Expiration Entity Address, City or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Other costs, gains, and losses, net Segment Reporting, Other Segment Item, Amount Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] License bonds outstanding amount License Bonds Outstanding Amount License bonds outstanding. Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Number of monthly installments for remaining shares issuable Business Acquisition, Equity Interest, Number Of Monthly Installments For Remaining Shares Issuable Business Acquisition, Equity Interest, Number Of Monthly Installments For Remaining Shares Issuable Stock options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Trade accounts receivable Billed Contracts Receivable Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Additions from business acquisitions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Interest Rate Swap, July 15, 2030 Expiration Interest Rate Swap, July 15, 2030 Expiration [Member] Interest Rate Swap, July 15, 2030 Expiration Business Combination [Domain] Business Combination [Domain] Contingent shares (in shares) Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares Provision Accounts Receivable, Credit Loss Expense (Reversal) 2019 Plan Two Thousand Nineteen Stock Omnibus Incentive Plan [Member] Two thousand nineteen stock omnibus incentive plan. Plan Name [Axis] Plan Name [Axis] Other depository assets Other Assets, Fair Value Disclosure PEO PEO [Member] ACCOUNTS RECEIVABLE, NET Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Proceeds from the sales and maturities of client fund investments Proceeds from Sale, Maturity and Collection of Investments Changes in client funds obligations Net Increase (Decrease) In Client Funds Obligations, Financing Net Increase (Decrease) In Client Funds Obligations, Financing Contingent purchase price liabilities Contingent Purchase Price Liabilities At Fair Value Contingent purchase price liabilities. Income taxes payable Accrued Income Taxes, Current Changes in assets and liabilities, net of acquisitions and divestitures: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Retained Earnings Retained Earnings [Member] Range of effective rates Debt Instrument, Interest Rate, Effective Percentage Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash, cash equivalents and restricted cash at beginning of year Cash, cash equivalents and restricted cash at end of period Total cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income tax expense Income Tax Expense (Benefit) Unrealized gain (loss) on interest rate swaps, income tax expense (benefit) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Property and Casualty Property And Casualty Reporting Unit [Member] Property And Casualty Reporting Unit Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Changes in Contingent Purchase Price Consideration Business Combination, Contingent Consideration [Table Text Block] Gain from other acquisition related adjustments Business Combination, Gain (Loss) On Acquisition Related Adjustments, Other Business Combination, Gain (Loss) On Acquisition Related Adjustments, Other Diluted earnings per share (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Current portion debt issuance costs, Term Loan Debt Issuance Costs, Current, Net Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Business Combination [Table] Business Combination [Table] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Additions Goodwill, Acquired During Period City Area Code City Area Code Business acquisitions and purchases of client lists, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Gain (loss) from litigation settlement Gain (Loss) from Litigation Settlement Contingent Purchase Price Liabilities Contingent Purchase Price Payable [Member] Contingent purchase price payable. Settlement of contingent purchase price liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Proceeds from bank debt Proceeds from Long-Term Lines of Credit Cash received from working capital adjustments in business combination Proceeds From Working Capital Adjustments In Business Combination Proceeds From Working Capital Adjustments In Business Combination Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Corporate general and administrative expenses General & administrative expenses General and Administrative Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Redemptions Proceeds from Sale of Debt Securities, Available-for-Sale Subsequent Event Subsequent Event [Member] Goodwill Beginning balance, Goodwill Ending balance, Goodwill Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Fair value, liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Equity Components [Axis] Equity Components [Axis] Benefits and Insurance Services Benefits and Insurance Services Benefits And Insurance Services [Member] Benefits and insurance services. Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Number of reportable segments Number of Reportable Segments Interest rate swaps Interest Rate Derivatives, at Fair Value, Net Par value of available-for-sale debt securities Debt Securities, Available-for-Sale, Amortized Cost Accumulated impairment Goodwill, Impaired, Accumulated Impairment Loss Share repurchase program, past years approved by board Share Repurchase Program, Past Years Approved By Board Share Repurchase Program, Past Years Approved By Board Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Total current liabilities Liabilities, Current Other current liability Other Current Liabilities [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Vesting [Axis] Vesting [Axis] Restricted cash Restricted Cash Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Other current assets Other Assets, Current Additional paid in capital Additional Paid in Capital, Common Stock Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Document Fiscal Year Focus Document Fiscal Year Focus Unaudited Interim Financial Statements Basis of Accounting, Policy [Policy Text Block] Right-of-use assets, net Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Right of First Refusal Agreement Right Of First Refusal Agreement [Member] Right Of First Refusal Agreement Assets of deferred compensation plan Assets of deferred compensation plan Deferred Compensation Plan Assets Entity Interactive Data Current Entity Interactive Data Current Plan Name [Domain] Plan Name [Domain] Stock options exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity [Abstract] Equity [Abstract] SEGMENT DISCLOSURES Segment Reporting Disclosure [Text Block] Goodwill [Table] Goodwill [Table] Business acquisitions Stock Issued During Period, Value, Acquisitions, Net Stock Issued During Period, Value, Acquisitions, Net 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] Interest Rate Swap, March 2030 Expiration Interest Rate Swap, March 2030 Expiration [Member] Interest Rate Swap, March 2030 Expiration Description of Business Description Of Business Policy [Policy Text Block] Description Of Business Policy Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Gain (Loss) Recognized in AOCI, net of tax Net unrealized gain (loss) on interest rate swaps, net of taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] OTHER COMPREHENSIVE INCOME Comprehensive Income (Loss) Note [Text Block] Share repurchase program, authorized, number of shares (in shares) Share Repurchase Program, Authorized, Number of Shares Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Proceeds from notes receivable acquired as part of business combination Proceeds From Notes Receivable Acquired As Part Of Business Combination Proceeds From Notes Receivable Acquired As Part Of Business Combination Depreciation and amortization expense Depreciation, Depletion and Amortization Interest Rate Swap, August 2027 Expiration Interest Rate Swap, August 2027 Expiration [Member] Interest Rate Swap, August 2027 Expiration Other non-current assets Other Assets, Noncurrent Entity Central Index Key Entity Central Index Key PEO Name PEO Name Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Revolving Credit Facility Revolving Credit Facility [Member] Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Contingent purchase price liabilities Business Combination, Contingent Consideration, Liability, Noncurrent Arrangement Duration Trading Arrangement Duration Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Provisional information, initial accounting incomplete, adjustment, receivable Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Receivable Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Receivable Share-Based Payment Arrangement, Tranche One Share-Based Payment Arrangement, Tranche One [Member] FINANCIAL INSTRUMENTS Financial Instruments Disclosure [Text Block] Segments [Axis] Segments [Axis] Exercise Price Award Exercise Price Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Total accounts receivable Accounts Receivable, before Allowance for Credit Loss, Current Other, net Payment for (Proceeds from) Other Investing Activity Other, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Subsequent Event Type [Axis] Subsequent Event Type [Axis] EMPLOYEE STOCK PLANS Share-Based Payment Arrangement [Text Block] Contingent purchase price liabilities Business Combination, Contingent Consideration, Liability, Current ASSETS Assets [Abstract] Long-term debt Total long-term debt Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Vesting [Domain] Vesting [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Restricted stock units and awards Restricted Stock Units and Awards Restricted Stock Units And Awards [Member] Restricted stock units and awards. Expired or canceled (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Business Combination [Line Items] Business Combination [Line Items] Credit Facility [Domain] Credit Facility [Domain] STOCKHOLDERS' EQUITY Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Transfer - Accumulated impairment Goodwill, Impaired, Transfers Goodwill, Impaired, Transfers Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Share repurchases Share repurchases, value Treasury Stock, Value, Acquired, Cost Method Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Allowance for doubtful accounts Balance at beginning of period Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Investments [Domain] Investments [Domain] Indirect repurchase of shares for minimum tax withholding (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Lease liabilities Operating Lease, Liability, Noncurrent Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Performance share units (in shares) Incremental Common Shares Attributable to Performance Share Incremental common shares attributable to Performance Share Fair value, asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Deferred compensation plan obligations Deferred compensation plan obligations Deferred Compensation Liability, Classified, Noncurrent Personnel costs Labor and Related Expense Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Purchases of client fund investments Payments to Acquire Investments Total segment expense Costs and Expenses Expired or canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Proceeds from business combination Proceeds From Adjustments Post Business Combination Proceeds From Adjustments Post Business Combination Interest Rate Swap, April 2030 Expiration Interest Rate Swap, April 2030 Expiration [Member] Interest Rate Swap, April 2030 Expiration Document Quarterly Report Document Quarterly Report Schedule Of Common Stock [Line Items] Schedule Of Common Stock [Line Items] Schedule Of Common Stock [Line Items] Deferred income taxes Deferred Income Taxes and Tax Credits Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Number of operating segments Number of Operating Segments Investments, All Other Investments [Abstract] Investments, All Other Investments [Abstract] Dilutive Securities Included And Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Dilutive Securities Included And Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Dilutive securities included and antidilutive securities excluded from computation of earnings per share. Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Summary of Classification Between Short-Term and Long-Term Debt Schedule of Debt [Table Text Block] Investment Type [Axis] Investment Type [Axis] Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Other non-current liability Other Noncurrent Liabilities [Member] Payment of bank debt Repayments of Long-Term Lines of Credit Restatement Determination Date: Restatement Determination Date [Axis] Restricted stock units and awards and performance share units Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding Letters of Credit Outstanding, Amount Number of reporting units Number of Reporting Units Reporting Unit [Axis] Reporting Unit [Axis] Summary of Outstanding Interest Rate Swaps Schedule of Interest Rate Derivatives [Table Text Block] Interest expense Interest Expense, Debt Notional amount, liability Derivative Liability, Notional Amount Name Trading Arrangement, Individual Name Award Type [Domain] Award Type [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Compensation Amount Outstanding Recovery Compensation Amount Summary of Restricted Stock Units and Awards Activity and Performance Share Units Activity Share-Based Payment Arrangement, Activity [Table Text Block] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Accrued personnel costs Increase (Decrease) in Employee Related Liabilities Marcum LLP Marcum LLP Acquisition [Member] Marcum LLP Acquisition Share Repurchase Program [Axis] Share Repurchase Program [Axis] Summary of Effects of Interest Rate Swap Summary Of Effects Of Interest Rate Swaps [Table Text Block] Summary Of Effects Of Interest Rate Swaps Reporting Unit [Domain] Reporting Unit [Domain] Current assets before funds held for clients Current Assets Before Funds Held For Clients Current assets before funds held for clients. MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Outstanding at beginning of period (in dollars per share) Outstanding at end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Adjustment to contingent purchase price liabilities Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Gross Goodwill, Gross Cash settlement paid Payments for Previous Acquisition Liability Class [Axis] Liability Class [Axis] Litigation Case [Axis] Litigation Case [Axis] Segments [Domain] Segments [Domain] Total non-current assets Assets, Noncurrent Available funds under credit facility Line of Credit Facility, Remaining Borrowing Capacity Performance share units PSU Performance Shares [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Gain Reclassified from AOCI into Expense Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Current portion, Term Loan Line of Credit, Current Minimum Minimum [Member] Non-current assets: Assets, Noncurrent [Abstract] Company Selected Measure Name Company Selected Measure Name Bad debt expense, net of recoveries Provision For Doubtful Accounts Net Of Recoveries Provision for doubtful accounts net of recoveries. Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments and contingencies. Purchases Payments to Acquire Debt Securities, Available-for-Sale DEBT AND FINANCING ARRANGEMENTS Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Net expense Business Combination Contingent Consideration Liability Other Adjustments Based On Projected Future Results Of Acquisition Business combination contingent consideration liability other adjustments based on projected future results of acquisition. Remaining number of shares issuable (in shares) Business Acquisition, Equity Interest, Remaining Number Of Shares Issuable Business Acquisition, Equity Interest, Remaining Number Of Shares Issuable All Executive Categories All Executive Categories [Member] Common stock Common Stock, Value, Issued Goodwill [Roll Forward] Goodwill [Roll Forward] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Share-Based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Diluted weighted average shares outstanding (in shares) Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Payment of contingent consideration for acquisitions and client lists Payment Of Contingent Consideration Of Acquisitions Payment of contingent consideration for acquisitions. Share-based compensation arrangement by share-based payment award, remaining contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Business Combination [Axis] Business Combination [Axis] Entity Small Business Entity Small Business Document Transition Report Document Transition Report NEW ACCOUNTING PRONOUNCEMENTS Accounting Standards Update and Change in Accounting Principle [Text Block] Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Gain from acquisition related adjustments, net Gain from acquisition related adjustments, net Gain (Loss) From Acquisition Related Adjustments Gain (Loss) From Acquisition Related Adjustments PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Long-term line of credit Bank debt, net Long-Term Line of Credit, Noncurrent Diluted Earnings Per Share, Diluted [Abstract] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Changes in Accounting Policies Changes In Accounting Policy [Policy Text Block] Changes In Accounting Policy Financial Services Financial Services Financial Services [Member] Financial services. Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] EARNINGS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Derivative Contract [Domain] Derivative Contract [Domain] Revenue Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] MOVEit Customer Data Security Breach Litigation MOVEit Customer Data Security Breach Litigation [Member] MOVEit Customer Data Security Breach Litigation Additions to property and equipment Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Shares issued (number) (in shares) Number Of Common Shares Issued Number of common shares issued. Weighted average rates Debt, Weighted Average Interest Rate Charge-offs, net of recoveries Allowance For Doubtful Accounts Receivable Write Offs And Net Of Recoveries Allowance for doubtful accounts receivable write offs and net of recoveries. Interest rate swap, fixed interest rate Derivative, Fixed Interest Rate Number of claims filed Loss Contingency, New Claims Filed, Number Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Indirect repurchase of shares for minimum tax withholding Payment, Tax Withholding, Share-Based Payment Arrangement Financial Accounting Services Financial Accounting Services Reporting Unit [Member] Financial Accounting Services Reporting Unit Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Other comprehensive income (loss), net of tax Other comprehensive income (loss), net of tax Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Current liabilities: Liabilities, Current [Abstract] Unallocated corporate operating expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Level 1 Fair Value, Inputs, Level 1 [Member] Diluted (in dollars per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accounts receivable, net Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Title of 12(b) Security Title of 12(b) Security Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Interest Rate Swap, July 2026 Expiration Interest Rate Swap, July 2026 Expiration [Member] Interest Rate Swap, July 2026 Expiration Dilutive Securities Included And Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Dilutive Securities Included And Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Dilutive securities included and antidilutive securities excluded from computation of earnings per share. Reporting unit, percentage of fair value in excess of carrying amount Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Treasury stock, beginning balance (in shares) Treasury stock, ending balance (in shares) Treasury Stock, Common, Shares Earnings per share: Earnings Per Share [Abstract] Consolidation Items [Domain] Consolidation Items [Domain] Total other income (expense), net Nonoperating Income (Expense) Funds held for clients Funds Held for Clients Gross margin Gross Profit Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Award vesting (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting, Shares Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting, Shares Number of defendants Loss Contingency, Number of Defendants Share repurchases (in shares) Treasury Stock, Shares, Acquired Award Timing Disclosures [Line Items] Accrued personnel costs Employee-related Liabilities, Current COMMON STOCK Equity [Text Block] Current liabilities before client fund obligations Current Liabilities Before Client Fund Obligations Current liabilities before client fund obligations. Net income Net income Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Expiration Date Trading Arrangement Expiration Date Non-current liabilities: Liabilities, Noncurrent [Abstract] Other liabilities Increase (Decrease) in Other Operating Liabilities Interest Rate Swap, October 2028 Expiration Interest Rate Swap, October 2028 Expiration [Member] Interest Rate Swap, October 2028 Expiration Share vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Net unrealized (loss) gain on available-for-sale securities, net of taxes Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Property and equipment, net Property, Plant and Equipment, Net Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Payment for acquisition of treasury stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable, net Increase (Decrease) in Accounts Receivable Entity Current Reporting Status Entity Current Reporting Status Receivables [Abstract] Receivables [Abstract] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Operating income Operating Income (Loss) Line of credit Line of Credit [Member] Retained earnings Retained Earnings (Accumulated Deficit) Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Interest Rate Swap, April 2028 Expiration Interest Rate Swap, April 2028 Expiration [Member] Interest Rate Swap, April 2028 Expiration Class of Stock [Axis] Class of Stock [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Subsequent Event Type [Domain] Subsequent Event Type [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Summary of Accounts Receivable, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Reconciliation of cash, cash equivalents and restricted cash to the Condensed Consolidated Balance Sheets: Reconciliation Of Cash Cash Equivalents And Restricted Cash To Consolidated Balance Sheet [Abstract] Reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets. Transfer - Gross goodwill Goodwill, Transfers Weighted Average Grant-Date Fair Value Weighted Average Grant-Date Fair Value Per Unit Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Maximum stock based compensation awards granted under the plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Statement [Table] Statement [Table] Other expense, net Other income, net Other Nonoperating Income (Expense) Stock-based compensation APIC, Share-Based Payment Arrangement, ESPP, Increase for Cost Recognition Adjustments to reconcile net income to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Proceeds from previous acquisition Proceeds from Previous Acquisition Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Business acquisitions Stock Issued During Period, Value, Acquisitions Change in bond premium Increase Decrease In Bond Premium Increase (Decrease) in bond premium. Share based awards excluded from the calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] 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] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Treasury stock Treasury Stock, Common, Value Termination Date Trading Arrangement Termination Date Net cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Debt issuance costs, noncurrent Debt Issuance Costs, Noncurrent, Net Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Long-term debt Long-Term Debt, Excluding Current Maturities [Abstract] Change in funds held for clients Increase (Decrease) In Funds Held For Clients Classified As Investing Activities Increase (Decrease) In Funds Held For Clients Classified As Investing Activities Share-Based Payment Arrangement, Tranche Three Share-Based Payment Arrangement, Tranche Three [Member] Basic weighted average shares outstanding (in shares) Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Annual amortization rate first two years Debt Instrument, Annual Principal Amortization Payments Rate, Years One And Two Debt Instrument, Annual Principal Amortization Payments Rate, Years One And Two Summary of Computation of Basic and Diluted Earnings Per Share from Continuing Operations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Subsequent Events [Abstract] Segment Reporting [Abstract] Segment Reporting [Abstract] Operating expenses Cost of Revenue Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of deferred financing fees Amortization of Debt Issuance Costs Other (expense) income: Corporate & other: Nonoperating Income (Expense) [Abstract] Entity Tax Identification Number Entity Tax Identification Number Performance share units Performance Share Units Performance share units. Proceeds from indemnity escrow associated with business combination Proceeds From Indemnity Escrow Associated With Business Combination Proceeds From Indemnity Escrow Associated With Business Combination Weighted average exercise price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, beginning balance (in shares) Common stock, ending balance (in shares) Common Stock, Shares, Issued Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Covenant interest coverage ratio, minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum GOODWILL Goodwill and Intangible Assets Disclosure [Text Block] Corporate And Eliminations Corporate And Eliminations [Member] Corporate And Eliminations Use of Estimates Use of Estimates, Policy [Policy Text Block] Summary of Changes in Carrying Amount of Goodwill by Operating Segment Schedule of Goodwill [Table Text Block] Interest expense Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Income taxes payable Increase (Decrease) in Income Taxes Payable Total Shareholder Return Amount Total Shareholder Return Amount 2024 Credit Facilities 2024 Credit Facilities [Member] 2024 Credit Facilities Change in fair value of contingencies Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings SUBSEQUENT EVENTS Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Number of Shares Performance Share Units Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Total non-current liabilities Liabilities, Noncurrent Covenant leverage ratio, maximum, tranche two Debt Instrument, Covenant, Leverage Ratio, Maximum, Tranche Two Debt Instrument, Covenant, Leverage Ratio, Maximum, Tranche Two Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Interest Rate Swap, December 2026 Expiration Interest Rate Swap, December 2026 Expiration [Member] Interest Rate Swap, December 2026 Expiration Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Other current liabilities Other Liabilities, Current Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Change in net present value of contingencies Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Change In Net Present Value Of Contingencies Fair value measurement with unobservable inputs reconciliation recurring basis liability change in net present value of contingencies. Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Subsequent Event [Line Items] Subsequent Event [Line Items] Covenant leverage ratio, maximum, tranche one Debt Instrument, Covenant, Leverage Ratio, Maximum, Tranche One Debt Instrument, Covenant, Leverage Ratio, Maximum, Tranche One Common Stock Common Stock [Member] Exercised or released (in shares) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Fair value at beginning of period Fair value at end of period Available-for-sale debt securities Debt Securities, Available-for-Sale Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation