Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Earn out payment Business Combination, Contingent Consideration Arrangements Earn Out Payment Business Combination, Contingent Consideration Arrangements Earn Out Payment Trading Arrangement: Trading Arrangement [Axis] Short-term contract assets Contract with Customer, Asset, before Allowance for Credit Loss, Current Return of beneficial interest in a securitization Payments to Acquire Retained Interest in Securitized Receivables Greystone JV Greystone JV [Member] Greystone JV Maximum Maximum [Member] Indirect and overhead employment costs Cost, Overhead Transferor's interests in transferred financial assets, amount drawn on investment limit Transferor's Interests In Transferred Financial Assets, Amount Drawn On Investment Limit Transferor's Interests In Transferred Financial Assets, Amount Drawn On Investment Limit Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Segment Reporting [Abstract] Segment Reporting [Abstract] Term Loan, Maturing January 2030 Tranche-2 Term Loan, Maturing January 2030 Tranche-2 [Member] Term Loan, Maturing January 2030 Tranche-2 Common shares, par value $0.10 per share, 800,000,000 shares authorized; 234,498,592 and 231,699,585 shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively Common Stock, Value, Issued Shares repurchased for payment of employee taxes on stock awards Payment, Tax Withholding, Share-Based Payment Arrangement Term Loan, Maturing January 31, 2030 Tranche Term Loan, Maturing January 31, 2030 Tranche [Member] Term Loan, Maturing January 31, 2030 Tranche Accrued compensation Employee-related Liabilities, Current Employee Benefits Retirement Benefits [Text Block] Contingent liabilities Loss Contingency Accrual Over time Transferred over Time [Member] Maximum potential future payments on guarantees Guarantor Obligations, Maximum Exposure, Undiscounted Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Total contract assets, net Contract with Customer, Asset, after Allowance for Credit Loss Derivative Instrument [Axis] Derivative Instrument [Axis] Term Loans Term Loans [Member] Term Loans Vesting of shares related to equity compensation plans, net of amounts withheld for payment of taxes (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Amendment Flag Amendment Flag Goodwill [Line Items] Goodwill [Line Items] Current liabilities: Liabilities, Current [Abstract] Provision for loss on receivables and other assets Accounts Receivable, Credit Loss Expense (Reversal) Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Payment of finance lease liabilities Finance Lease, Principal Payments Unrealized loss on derivative instruments, pretax Unrealized Loss On Derivative Instruments, Pretax Unrealized Loss On Derivative Instruments, Pretax Royalty income, nonoperating Royalty Income, Nonoperating Americas Americas Segment [Member] Americas Segment [Member] Transferor's interests in transferred financial assets, receivables sold, percent Transferor's Interests In Transferred Financial Assets, Receivables Sold, Percent Transferor's Interests In Transferred Financial Assets, Receivables Sold, Percent Loss Contingencies [Table] Loss Contingencies [Table] Investments [Domain] Investments [Domain] Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Workers' compensation Workers' Compensation [Member] Workers' Compensation [Member] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Change in deferred taxes Increase (Decrease) in Deferred Income Taxes Related Party Transactions and Employee Receivables Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent PEO Total Compensation Amount PEO Total Compensation Amount Common shares, par value per share (in dollars per share) Common Stock, Par or Stated Value Per Share Assets Assets, Fair Value Disclosure [Abstract] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Number of loan commitment letters issued Number Of Loan Commitment Letters Issued Number Of Loan Commitment Letters Issued Intangible assets, net Net Value Intangible Asset, Excluding Goodwill, after Accumulated Amortization Notional Derivative, Notional Amount Weighted average shares outstanding for basic earnings per share (in shares) Weighted Average Number of Shares Outstanding, Basic Short-term contract assets, net Short-term contract assets, net Contract with Customer, Asset, after Allowance for Credit Loss, Current Early State Proptech Companies Early State Proptech Companies [Member] Early State Proptech Companies Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Loss Contingencies [Line Items] Loss Contingencies [Line Items] Capital markets Capital Markets, Service [Member] Capital Markets, Service [Member] Derivative, number of new instruments held Derivative, Number Of New Instruments Held Derivative, Number Of New Instruments Held Number of reportable segments Number of Reportable Segments Earnings before income taxes Income (Loss) Attributable to Parent, before Tax Total current liabilities Liabilities, Current Customer relationships Customer Relationships [Member] Schedule of Fair Value of Derivatives Schedule of Derivative Instruments [Table Text Block] Pre-tax gain (loss) reclassified during the next twelve months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Entity Address, City or Town Entity Address, City or Town Schedule of Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Other receivable, after allowance for credit loss, noncurrent Other Receivable, after Allowance for Credit Loss, Noncurrent Foreign Plan Foreign Plan [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Finite-lived intangible assets, net value Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Debt issuance costs, amount Debt Issuance Costs, Gross Trade and other receivables, net of allowance of $91.7 and $93.2, as of June 30, 2026 and December 31, 2025, respectively Accounts and Other Receivables, Net, Current Level 2 Fair Value, Inputs, Level 2 [Member] Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Less: current portion of long-term debt Long-Term Debt, Current Maturities Location, Statement of Other Comprehensive Income, Balance [Axis] Location, Statement of Other Comprehensive Income, Balance [Axis] EMEA Europe, The Middle East And Africa Segment [Member] Europe, The Middle East And Africa Segment [Member] Designated hedge gain (loss) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Summarized Financial Information by Segment Segment Reporting [Table Text Block] Non-Controlling Interests Noncontrolling Interest [Member] Amortization of debt issuance costs Amortization of Debt Issuance Costs Related Party [Axis] Related and Nonrelated Parties [Axis] Total other comprehensive income, net Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Long-term debt Long-Term Debt Income taxes payable, net of income taxes receivable Increase (Decrease) in Income Taxes Payable Document Period End Date Document Period End Date Changes in assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Debt instrument, face amount Debt Instrument, Face Amount Basic earnings per share: Basic EPS Earnings Per Share, Basic [Abstract] Costs and expenses: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Total Liabilities, Fair Value Disclosure Impairment of equity method investment Equity Method Investment, Other-than-Temporary Impairment Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Net change in fair value and other adjustments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Non-current contract assets Contract with Customer, Asset, before Allowance for Credit Loss, Noncurrent Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Basic and diluted earnings (loss) per share: Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Adjusted EBITDA Income (Loss) From Continuing Operations Before Interest, Taxes, Depreciation And Amortization Income (Loss) From Continuing Operations Before Interest, Taxes, Depreciation And Amortization Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Indefinite-lived intangible assets, gross value Indefinite-lived intangible assets, net value Intangible Asset, Excluding Goodwill, Indefinite-Lived Payment for property and equipment Payments to Acquire Property, Plant, and Equipment 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] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Income taxes payable Accrued Income Taxes, Current Company Selected Measure Name Company Selected Measure Name Schedule of Restrictions on Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Amounts reclassified from Accumulated other comprehensive loss (AOCI) to the statement of operations, net of tax Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Outstanding principal on receivables sold under securitization Accounts Receivable from Securitization Non-cash investing/financing activities: Noncash Investing and Financing Items [Abstract] Diluted earnings per share: Diluted EPS Earnings Per Share, Diluted [Abstract] Defined Benefit Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Gross carrying value of debt Long-Term Debt, Gross Credit Facility [Domain] Credit Facility [Domain] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Other receivables, net, current Other Receivables, Net, Current Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted average shares outstanding for diluted earnings per share (in shares) Weighted average shares outstanding for diluted earnings per share (in shares) Weighted Average Number of Shares Outstanding, Diluted Contract liabilities included in Accounts payable and accrued expenses Contract With Customer, Liability, Accounts Payable And Accrued Liabilities Contract With Customer, Liability, Accounts Payable And Accrued Liabilities Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Derivative Financial Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Other indirect and overhead costs Other Indirect And Overhead Costs Other Indirect And Overhead Costs Contract asset allowances Contract with Customer, Asset, Allowance for Credit Loss, Current Liabilities fair value Derivative Liability, Subject to Master Netting Arrangement, before Offset At a point in time or over time Transferred At Point In Time Or Over Time [Member] Transferred At Point In Time Or Over Time [Member] Other non-current assets Increase (Decrease) in Other Noncurrent Assets Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Gross contract costs Gross Contract Costs Gross Contract Costs Award Timing Predetermined Award Timing Predetermined [Flag] Several Estate Service Companies Several Estate Service Companies [Member] Several Estate Service Companies Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Interest Rate Swap Expiring June 2029 Interest Rate Swap Expiring June 29, 2029 [Member] Interest Rate Swap Expiring June 29, 2029 Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Earn-out liabilities, minimum Business Combination, Contingent Consideration, Range of Outcomes, Minimum, Amount Operating leases Operating Lease, Payments, Use Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Indefinite-lived Intangible Assets, Major Class Name [Domain] Intangible Asset, Indefinite-Lived, Class [Domain] Transfers and Servicing [Abstract] Transfers and Servicing [Abstract] Onewo JV Onewo JV [Member] Onewo JV Dilutive effect of restricted stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Unrealized Hedging (Losses) Gains Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent, Exclusive of Impairment [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent, Exclusive of Impairment Estimated fair value of external debt Long-Term Debt, Fair Value Asset servicing fee Asset Servicing Fee Asset Servicing Fee Non-current operating lease assets Operating Lease, Right-of-Use Asset Term Loan, Maturing June 2033 Tranche Term Loan, Maturing June 2033 Tranche [Member] Term Loan, Maturing June 2033 Tranche Contingent liabilities, non-current Loss Contingency, Accrual, Noncurrent Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Accumulated amortization, debt issuance costs Accumulated Amortization, Debt Issuance Costs Debt Disclosure [Abstract] Debt Disclosure [Abstract] Estimated range of reasonably possible loss Income Tax Examination, Estimate of Possible Loss Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Segment Data Segment Reporting [Text Block] Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Expiration Date Trading Arrangement Expiration Date Change in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Hedging Relationship [Axis] Hedging Relationship [Axis] Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Effects of exchange rate fluctuations on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Cash equivalents - money market funds Cash and Cash Equivalents, Fair Value Disclosure Total equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest 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] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Common shares authorized (in shares) Common Stock, Shares Authorized Useful Life (in years) Intangible Asset, Finite-Lived, Useful Life Trade and other receivables Increase (Decrease) in Accounts and Other Receivables Deferred compensation plan assets Deferred Compensation Plan Assets Exercise Price Award Exercise Price Cash flows from investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Vesting of shares related to equity compensation plans, net of amounts withheld for payment of taxes Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Segment Reporting [Line Items] Segment Reporting [Line Items] Contract asset allowances Contract with Customer, Asset, Allowance for Credit Loss, Noncurrent Document Quarterly Report Document Quarterly Report Pension related adjustments, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Adjustment, Net Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Adjustment, Net Tax Traded Real Estate Companies Traded Real Estate Companies [Member] Traded Real Estate Companies 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] Segments [Domain] Segments [Domain] Interest rate swaps Interest rate swap agreements Interest Rate Swap [Member] Long-Term Debt and Other Borrowings Debt Disclosure [Text Block] Repayment of borrowings Repayments of long-term debt Repayments of Long-Term Debt Non-current contract assets, net included in Other non-current assets Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent Debt issuance costs, net Debt Issuance Costs, Net Unamortized discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity method investments Equity Method Investments Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Total costs and expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Number of loans delivered Number Of Loans Delivered Number Of Loans Delivered Investments in equity securities Payments to Acquire Equity Method Investments Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Total equity attributable to the Company Beginning Accumulated Other Comprehensive (Gain) Loss Ending Accumulated Other Comprehensive (Gain) Loss Equity, Attributable to Parent Non-operating items related to the Greystone JV Nonoperating Income (Expense) Remaining losses Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Equity securities Equity Securities, FV-NI, Current Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Interest Rate Swap Expiring May 2028 Interest Rate Swap Expiring May 2028 [Member] Interest Rate Swap Expiring May 2028 Insider Trading Policies and Procedures [Line Items] Finance lease liabilities Finance Lease, Liability Other financing activities, net Proceeds from (Payment for) Other Financing Activity Trade and other receivables, allowance Accounts Receivable, Allowance for Credit Loss, Current Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] APAC Asia Pacific Segment [Member] Asia Pacific Segment [Member] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current 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] Deferred income tax expense (benefit) Deferred Income Tax Expense (Benefit) Operating, administrative and other Selling, General and Administrative Expense Term Loan, Maturing August 2025 Term Loan, Maturing August 2025 [Member] Term Loan, Maturing August 2025 Senior Secured Note Due May 2028 Senior Secured Note Due May 2028 [Member] Senior Secured Note Due May 2028 Business Combination [Domain] Business Combination [Domain] Restructuring, impairment and related charges Restructuring, Settlement and Impairment Provisions Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Schedule of Goodwill Goodwill [Table Text Block] Accrued payroll taxes Accrued Payroll Taxes Entity Central Index Key Entity Central Index Key All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] 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] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Other activity Stockholders' Equity, Other Income Statement [Abstract] Income Statement [Abstract] Shareholders’ equity: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Short-term contract assets and Prepaid expenses and other current assets Increase (Decrease) In Contract With Customer, Asset Current, Prepaid Expense, And Other Assets Increase (Decrease) In Contract With Customer, Asset Current, Prepaid Expense, And Other Assets Designated: Designated as Hedging Instrument [Member] Deferred tax assets Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Contract liabilities included in Other non-current liabilities Contract With Customer, Liability, Other Liabilities, Noncurrent Contract With Customer, Liability, Other Liabilities, Noncurrent Schedule of Intangible Asset, Finite-Lived Intangible Asset, Finite-Lived [Table Text Block] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Variable Rate [Domain] Variable Rate [Domain] Proceeds from accounts receivable securitization Proceeds from Accounts Receivable Securitization Total Accumulated Other Comprehensive Loss, net of tax AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Subsequent Events Subsequent Events [Text Block] Lease amortization Operating Lease, Right-of-Use Asset, Periodic Reduction Transferor's interests in transferred financial assets, fair value Transferor's Interests in Transferred Financial Assets, Fair Value Other direct costs Costs Direct, Other Costs Direct, Other Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Defined Benefit Plan [Table] Defined Benefit Plan [Table] Fair value of defined benefit plan assets Defined Benefit Plan, Plan Assets, Amount Property and equipment additions through finance leases Lease Obligation Incurred Interest expense, net of interest income Interest expense, net of interest income Interest Expense, Nonoperating Quarterly principal payment, percentage Debt Instrument, Quarterly Principal Payment, Percentage Debt Instrument, Quarterly Principal Payment, Percentage Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Defined benefit plan, benefit obligation Defined Benefit Plan, Benefit Obligation PEO PEO [Member] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Other non-current liabilities Other Liabilities, Noncurrent Goodwill Beginning balance Ending balance Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Interest Rate Swap Expiring August 2027 Interest Rate Swap Expiring August 2027 [Member] Interest Rate Swap Expiring August 2027 Contract liabilities reduced due to revenue recognition criteria being satisfied Contract with Customer, Liability, Revenue Recognized Earn-out Liabilities Earn-Out Liabilities [Member] Earn-Out Liabilities [Member] Interest Rate Swap Expiring June 30, 2029 Interest Rate Swap Expiring June 30, 2029 [Member] Interest Rate Swap Expiring June 30, 2029 Accumulated Deficit Retained Earnings [Member] Non-current operating lease liabilities Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common shares outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Debt issuance costs Payments of Debt Issuance Costs Foreign Currency Translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Senior Secured Note Due September 2031 Senior Secured Note Due September 2031 [Member] Senior Secured Note Due September 2031 Earnings per share attributable to common shareholders, diluted (in dollars per share) Diluted earnings per share attributable to common shareholders (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Liabilities Liabilities, Fair Value Disclosure [Abstract] Cash Flow Hedging Cash Flow Hedging [Member] Country Region Country Region Accrued compensation Increase (Decrease) in Employee Related Liabilities Unrealized loss on investments, net Unrealized loss (gain) on investments, net Unrealized gain (loss) on investments Unrealized Gain (Loss) on Investments Amortization expense Intangible Asset, Finite-Lived, Amortization Expense Reconciliation of net income to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Impairment of investments Impairment On Investment Impairment On Investment Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Amount of net related income tax expense (benefit) Reclassification from AOCI, Current Period, Tax Cash flows from financing activities  Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenue Revenue from Contract with Customer, Excluding Assessed Tax Property and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Schedule of Equity Method Investments Equity Method Investments [Table Text Block] Derivative asset Derivative Asset Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Number of defined benefit plans Number Of Defined Benefit Plans Number Of Defined Benefit Plans Goodwill and Other Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Gross Value Intangible Asset, Excluding Goodwill, before Accumulated Amortization Valuation and other Valuation And Other, Service [Member] Valuation And Other, Service [Member] Revenue Revenue from Contract with Customer [Text Block] Other investing activities, net Payment for (Proceeds from) Other Investing Activity Segment Reporting [Table] Segment Reporting [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Provision for loan losses Provision for Loan, Lease, and Other Losses Number of derivative instruments held Derivative, Number of Instruments Held Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Impairment charges Impairment Of Real Estate And Other Investments Impairment Of Real Estate And Other Investments Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Cash collection Proceeds From Accounts Receivable Securitization Received From Trade Accounts Receivable Sold To Third Party Proceeds From Accounts Receivable Securitization Received From Trade Accounts Receivable Sold To Third Party Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Services Service [Member] Current Fiscal Year End Date Current Fiscal Year End Date Proceeds from debt, net of stated discount and debt issuance costs Proceeds from Issuance of Debt Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] 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] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Unrealized gain on derivative instruments, pretax Unrealized Gain On Derivative Instruments, Pretax Unrealized Gain On Derivative Instruments, Pretax Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Equity Method Investments Equity Method Investments and Joint Ventures Disclosure [Text Block] Leasing Leasing Service [Member] Leasing Service [Member] Earnings (loss) from equity method investments, net of distributions received Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Loss on derivative instruments, pretax Loss on Derivative Instruments, Pretax Cushman & Wakefield Vanke Service Cushman & Wakefield Vanke Service [Member] Cushman & Wakefield Vanke Service Increase in debt principal amount Debt Instrument, Increase (Decrease), Net Costs of services (exclusive of depreciation and amortization) Costs of services Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Equity Components [Axis] Equity Components [Axis] Related Party Related Party [Member] Product and Service [Domain] Product and Service [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Deferred compensation plan liabilities Deferred Compensation Liability, Current and Noncurrent Deferred tax liabilities Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Entity Small Business Entity Small Business Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Number of first mortgage multifamily property loans Number Of First Mortgage Multifamily Property Loans Number Of First Mortgage Multifamily Property Loans Subsequent Events [Abstract] Subsequent Events [Abstract] Payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Other Earnings Before Interest, Taxes, Depreciation And Amortization, Other Adjustments Earnings Before Interest, Taxes, Depreciation And Amortization, Other Adjustments Deferred and contingent payment obligations incurred through acquisitions Liabilities Assumed Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Pension related adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other current liabilities Other Liabilities, Current Other non-current assets Other Assets, Noncurrent Document Type Document Type 2018 Credit Agreement 2018 Credit Agreement [Member] 2018 Credit Agreement [Member] Acquisition of business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired 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] Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Intangible Asset, Indefinite-Lived Intangible Asset, Indefinite-Lived [Table Text Block] Other investments Nonconsolidated Investees, Other [Member] Schedule of Goodwill [Table] Goodwill [Table] Pension buy-out settlement loss Pension Buy-Out Settlement, Loss Pension Buy-Out Settlement, Loss Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Proceeds from borrowings Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (see Note 11) Commitments and Contingencies Finite-lived intangible assets, gross value Intangible Asset, Finite-Lived, before Accumulated Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Earnings (loss) from equity method investments Income (Loss) from Equity Method Investments Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Errors and Omissions (E&O) claims and other claims Errors And Omissions Claims [Member] Errors And Omissions Claims [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Investment limit Transferor's Interests In Transferred Financial Assets, Maximum Investment Limit Transferor's Interests In Transferred Financial Assets, Maximum Investment Limit Goodwill [Roll Forward] Goodwill [Roll Forward] At a point in time Transferred at Point in Time [Member] Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] C&W trade name Trade Names [Member] Schedule of Recurring Fair Value Measurements Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Cash paid for: Supplemental Cash Flow Information [Abstract] Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Statement of Operations Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction And Translation Adjustment Excluding Redemptions Or Purchase Of Interests, Net Of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction And Translation Adjustment Excluding Redemptions Or Purchase Of Interests, Net Of Tax PEO Name PEO Name Total contract liabilities Contract with Customer, Liability Unrealized Hedging Gains (Losses) Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Income taxes Income Tax Paid, before Refund Received Investments in real estate ventures Real Estate Investments, Net Senior Secured Note Due Sept 2031 Senior Secured Note Due Sept 2031 [Member] Senior Secured Note Due Sept 2031 Other segment items Segment Reporting, Other Segment Item, Amount Payment of deferred and contingent consideration Payment for Contingent Consideration Liability, Financing Activities Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Interest expense, debt Interest Expense, Debt Unrealized gain (loss) on hedging instruments, net of tax Amount of (Gain) Loss Recognized in Other Comprehensive Loss on Derivatives Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Liability Class [Axis] Liability Class [Axis] Cash, cash equivalents and restricted cash, beginning of the period Cash, cash equivalents and restricted cash, end of the period Total cash, cash equivalents and restricted cash shown in the statements of cash flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base Rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Purchases/additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Decrease in beneficial interest in a securitization Decrease In Beneficial Interest In Securitization, Non-cash Decrease In Beneficial Interest In Securitization, Non-cash Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Restricted cash recorded in Prepaid expenses and other current assets Restricted Cash and Cash Equivalent, Current 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] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Schedule of Long-Term Debt Schedule of Debt [Table Text Block] Investment, Name [Domain] Investment, Name [Domain] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Earnings per share attributable to common shareholders, basic (in dollars per share) Basic earnings per share attributable to common shareholders (in dollars per share) Earnings Per Share, Basic Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Schedule of Effect of Derivatives As Hedges, Net of Applicable Income Taxes Derivative Instruments, Gain (Loss) [Table Text Block] Long-term debt, net Total Long-term debt, net Long-Term Debt, Excluding Current Maturities Cash flow hedge, gain (loss) before reclassification and tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Award Type [Axis] Award Type [Axis] Debt instrument, basis spread on variable rate, minimum floor Debt Instrument, Basis Spread On Variable Rate, Minimum Floor Debt Instrument, Basis Spread On Variable Rate, Minimum Floor Interest rate cash flow hedges Interest Rate Contract [Member] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accumulated deficit Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Earn-out liabilities Business Combination, Contingent Consideration, Liability Litigation settlement, expense Litigation Settlement, Fee Expense Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Transferor's interests in transferred financial assets,unused portion of the facility limit Transferor's Interests In Transferred Financial Assets, Unused Portion Of The Facility Limit Transferor's Interests In Transferred Financial Assets, Unused Portion Of The Facility Limit Cover [Abstract] Cover [Abstract] United Kingdom UNITED KINGDOM Derivative Contract [Domain] Derivative Contract [Domain] Effect of movements in exchange rates Goodwill, Foreign Currency Translation, Gain (Loss) Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Total liabilities and shareholders’ equity Liabilities and Equity Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Short-term borrowings and current portion of long-term debt Debt, Current Non-controlling interests Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Other current and non-current liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Proceeds from issuance of senior long-term debt Proceeds from Issuance of Senior Long-Term Debt Related Party [Domain] Related and Nonrelated Parties [Domain] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Other income (expense), net Other Nonoperating Income (Expense) Total Equity Attributable to the Company Parent [Member] Income taxes receivable Income Taxes Receivable, Current Name Awards Close in Time to MNPI Disclosures, Individual Name Entity Address, Country Entity Address, Country 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] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Collection on beneficial interest in a securitization Proceeds from Collection of Retained Interest in Securitized Receivables Adjustment to Compensation: Adjustment to Compensation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Foreign currency forward contracts Foreign Exchange Forward [Member] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total Assets, Fair Value Disclosure Total Long-Term Debt and Lease Obligation Direct employment costs Cost, Direct Labor Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other operating activities, net Other Noncash Income (Expense) Real Estate Venture Capital Funds Real Estate Venture Capital Funds [Member] Real Estate Venture Capital Funds Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Closed-ended terms for guarantees Guarantor Obligations, Close-Ended Term Guarantor Obligations, Close-Ended Term Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Elements [Abstract] Indefinite-lived Intangible Assets [Axis] Intangible Asset, Indefinite-Lived, Class [Axis] Impairment of goodwill Goodwill, Impairment Loss Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Company Selected Measure Amount Company Selected Measure Amount Proceeds from equity method investment, distribution Proceeds from Equity Method Investment, Distribution Non-designated: Not Designated as Hedging Instrument [Member] Senior Secured Note Senior Secured Note [Member] Senior Secured Note Equity Method Investments and Joint Ventures [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Entity Address, Address Line Two Entity Address, Address Line Two Current assets: Assets, Current [Abstract] Derivative liability Derivative Liability Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained through operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Impairment of intangible assets Intangible Asset, Finite-Lived, Impairment Loss Provision for income taxes Income Tax Expense (Benefit) Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Consolidation Consolidation, Policy [Policy Text Block] Gain reclassified into earnings Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Earn-out liabilities, maximum Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Contingent liabilities, current Loss Contingency, Accrual, Current Accounts Receivable Securitization Transfers and Servicing of Financial Assets [Text Block] New Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income Net income Net income Net income Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Net leverage ratio Debt Instrument, Covenant, Leverage Ratio Debt Instrument, Covenant, Leverage Ratio Location, Statement of Financial Position, Balance [Axis] Location, Statement of Financial Position, Balance [Axis] Schedule of Net Income to Adjusted EBITDA Schedule Of Adjusted EBITDA [Table Text Block] Schedule Of Adjusted EBITDA [Table Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Servicing liability, fees and amortization Servicing Liability At Amortized Cost, Amortization, Including Fees Servicing Liability At Amortized Cost, Amortization, Including Fees Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Asset fair value Derivative Asset, Subject to Master Netting Arrangement, before Offset Gain on derivative instruments, pretax Gain on Derivative Instruments, Pretax Unrealized foreign exchange loss (gain) Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]