Equity-based compensation after Business Combination APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total APIC, Share-based Payment Arrangement, Increase for Cost Recognition Foreign Currency Translation Gain Loss Before Tax Prior To Business Combination Foreign Currency Translation Gain Loss Before Tax After Business Combination Decrease (increase) in operating assets: Increase (Decrease) in Operating Assets [Abstract] Accrued compensation and benefits Limited Partner [Member] Employee-related Liabilities, Total Employee-related Liabilities Amount of increase (decrease) in obligation for operating lease. Incentive compensation awards approved Share Based Compensation Approved For Grant Gross number of awards approved for grant for future issuance. Number of clients over 10% benchmark Product Information [Line Items] Schedule of Product Information [Table] Organization, Consolidation and Presentation of Financial Statements [Abstract] Accumulated Amortization Redemption of partners' interests Accounts payable, accrued expenses and other liabilities Risk-free rate of return Warrants And Rights Outstanding Fair Value Assumptions Risk Free Rate Of Return Warrants and rights outstanding fair value assumptions risk free rate of return. Amount of increase (decrease) in operating lease right of use asset. Write-offs Minimum amount held by redeeming holders Minimum Amount Held By Redeeming Holders Reduction To Cadence Bank Prime Rate Reduction To Cadence Bank Prime Rate [Member] Reduction To Cadence Bank Prime Rate [Member] Debt conversion converted instrument intrinsic value Debt Instrument, Convertible, Beneficial Conversion Feature Drawdown amounts Maximum incremental revolving commitments Maximum Incremental Revolving Commitments Maximum amount of incremental revolving commitments that may be incurred. Maximum amount to be used for letters of credit Maximum Amount Of Revolving Credit Facility For Letters Of Credit Maximum amount under the revolving credit facility that may be used for the issuance of letters of credit. Fixed Rate Fixed Rate [Member] Fixed Rate [Member] Line of Credit Facility, Interest Rate During Period Debt Instrument, Basis Spread on Variable Rate Repaid Outstanding Borrowing Including Accrued and Unpaid Interest Repayments of Long-term Lines of Credit Debt related commitment fee amount Debt Instrument, Fee Amount Former Working Partners Former Working Partners [Member] Former Working Partners. Original issue discount rate Original Issue Discount Rate Original issue discount rate for a portion of the convertible notes. Premium paid to certain redeeming holders Premium Paid To Certain Redeeming Holders Premium paid to redeeming holders of the convertible notes that owned at lease $5.0 million of principal and accrued and unpaid interest. Redemption amount Debt Instrument, Repurchase Amount Members of management and other partners [Member] Members of management and other partners [Member] Restricted Stock Units (RSUs) [Member] Amount of estimated payments pursuant to the tax receivable agreement due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of estimated payments pursuant to the tax receivable agreement to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of estimated payments pursuant to the tax receivable agreement to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of estimated payments pursuant to the tax receivable agreement to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of estimated payments pursuant to the tax receivable agreement to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Dividend payable, date Dividends Payable, Date to be Paid Amount of estimated payments pursuant to the tax receivable agreement to be paid in remainder of current fiscal year. Total Payments Sale of Stock [Domain] Sale of Stock [Axis] Debt instrument carrying amount Affiliates [Member] Affiliates [Member] Entity [Domain] Legal Entity [Axis] Common Stock B-2 [Member] Director [Member] Partner promissory notes recognized as a reduction in equity Related Party Transaction, Partner Promissory Notes Amounts due from partners of the reporting entity as evidenced by a written promise to pay; recognized as a reduction of equity. The percentage charged for late payments. Related party income. Related party expenses Related Party Expenses [Abstract] Related party expenses. TSA Non Compensation Related [Member] Sublease income Revenues from External Customers and Long-Lived Assets [Line Items] Costs incurred for employee benefit plans Thereafter Lessor Sublease Income To Be Received After Year Four Amount of lessor's undiscounted sublease income for operating leases due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessor's undiscounted sublease income for operating leases. Net Minimum Payments Operating Lease Liabilities Net Minimum Payments Due [Abstract] Operating lease liabilities net minimum payments due. Amount of lessee's undiscounted obligation for lease payments, net of sublease income, for operating leases. Amount of lessee's undiscounted sublease income for operating lease to be received in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted sublease income for for operating lease to be received remainder of current fiscal year. Minimum Share Price And Purchase Price Minimum share price and purchase price Minimum share price to be traded at for the consecutive day requirement to trigger the purchase option. Also the price at which the founder shares can be purchased. Minimum amount of consecutive trading days which common stock price must exceed threshold price within threshold period to trigger purchase feature. The maximum number of preferred and common shares permitted to be issued by an entity's charter and bylaws. Redemption of partners' interests Redemption of Convertible Notes Number of clients over 10% benchmark Number Of Client Over Ten Percent Benchmark Number of client over ten percent benchmark. Client Accounting for More than 10% of Aggregate Receivable [Member] Deferred offering costs Specific incremental costs directly attributable to a proposed or actual offering of securities which were previously deferred that were expensed during the period. Accrued revenue included in accounts receivable Warrants Number of securities each warrant or right entitles the registered holder to purchase. Number of securities purchasable for each warrant or right Related Party income Number of non-vested awards Share-based awards granted Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of exchange of PWP OpCo Units. Assumed exercise of warrants Estimate of possible loss Loss Contingencies [Line Items] Loss Contingencies [Table] Diluted Basic Partners' capital Limited Partners' Capital Account, Total Limited Partners' Capital Account The minimum amount redeeming holders of the convertible notes had to own in principal and accrued and unpaid interest in order to be paid a premium for the redemption. Maximum borrowing capacity Effective Interest Rate Effective Interest Rate [Member] Effective Interest Rate [Member] Prior to Business Combination Weighted Average Interest Rate Prior to Business Combination [Member] Prior to Business Combination [Member] Weighted Average Interest Rate Member Weighted Average Interest Rate Member Interest rate during the period Debt Instrument, Interest Rate During Period TSA [Member] TSA [Member] Client Accounting for More than 10% of Aggregate Revenue [Member] Total revenues Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Technology and infrastructure Debt instrument, face amount Debt instrument, repurchased face amount Debt Instrument, Repurchased Face Amount Ending balance DistributionRateForClassBCommonStockComparedToClassA Founder share purchase period Period Founder Shares May Be Purchased Period of time in which founder shares may be purchased after achieving the requirement to trigger the purchase feature. Founder Share Purchase Option Founder Share Purchase Option [Member] Founder share purchase option. Founder shares convertible threshold consecutive trading days Founder Shares Convertible Threshold Consecutive Trading Days Period of specified consecutive trading days within which common stock price must exceed threshold price for specified number of trading days to trigger purchase feature. Total revenues Stockholder's agreement 5% condition Stockholder Agreement Five Percent Condition As long as the Professional Partners or the limited partners continue to hold securities representing at least 5% of the Company's Class A common stock on an exchanged basis, the Board many not approve, without their consent, any amendments that would materially or adversely affect the rights of the Professional Partners or the limited partners. The Stockholders Agreement will terminate once the 5% condition is no longer satisfied. Professional Partners and ILPs Professional Partners and ILPs [Member] Professional Partners and ILPs [Member] Units of Minority Interest Amount Cumulative effect of accounting change Cumulative effect of accounting change Cumulative effect of accounting change. Percentage of tax savings to be paid to certain partners pursuant to a tax receivable agreement should the company realize any tax savings. Electing Former Working Partners Electing Former Working Partners [Member] Electing former working partners. Convertible Debt Increase (decrease) in operating lease liabilities Lease liabilities Foreign currency translation gain (loss) Payment of debt Cash paid for business combination Payments to Acquire Businesses, Gross FTIV FTIV And Other Parties [Member] FTIV And Other Parties [Member] Class B1 Common Stock Class B2 Common Stock Business Acquisition, Transaction Costs Business Combination, Acquisition Related Costs Other Compensation and Benefits Draw down on Revolving Credit Facility Amount of expense for salary, wage, profit sharing; incentive compensation; and other employee benefit. Other employee benefit expense includes, but is not limited to, service component of net periodic benefit cost for defined benefit plan. Excludes equity-based compensation expense. Expected Dividend Rate Measurement Input, Expected Dividend Rate [Member] Measurement Input Type [Domain] Measurement Input Type [Axis] Private Warrants Level 2 Level 1 Recurring Basis Termination cost Severance Costs Defined Contribution Plan, Cost Deferred compensation expense Deferred Compensation Arrangement with Individual, Compensation Expense Exercise price per share Warrants And Rights Outstanding Fair Value Assumptions Exercise Price Agreed-upon price for the exchange of the underlying asset relating to the warrant or right. Effect of Business Combination, Shares Effect of Business Combination, Amount Distributions to partners Expected term (in years) Warrants And Rights Outstanding Fair Value Assumptions Expected Term Expected term of or the warrant or right in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Beginning Balance, Shares Ending Balance, Shares Beginning Balance, Amount Ending Balance, Amount Partners' Capital Ending Balance, Amount Partners' Capital Beginning Balance, Amount Non-Controlling Interests [Member] Class B Common Stock [Member] Expected dividend yield Warrants And Rights Outstanding Fair Value Assumptions Expected Dividend Rate Warrants and rights outstanding fair value assumptions expected dividend rate. Expected volatility Warrants And Rights Outstanding Fair Value Assumptions Expected Volatility Rate Warrants and rights outstanding fair value assumptions expected volatility rate. Increase (decrease) in operating lease right of use asset Dividend yield Warrants And Rights Outstanding Expected Dividend Rate Warrants and rights outstanding expected dividend rate. Amount of lessee's undiscounted sublease income for operating lease to be received in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted sublease income for operating lease to be received in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted sublease income for operating lease to be received in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Offering costs Transaction expenses Preferred stock par or stated value per share Preferred Stock, Par or Stated Value Per Share $15 Price [Member] $15 Price. $12 Price [Member] $12 Price. Exercise Price Range [Domain] Exercise Price Range [Axis] The amount of PWP OpCO units held by noncontrolling shareholders, partners or other equity holders in consolidated entity. Noncontrolling Interest, Units Owned Class B distribution rate compared to Class A Class B common stock distribution rate in comparison to Class A common stock. Preferred and common stock authorized Preferred And Common Stock Shares Authorized Sublease income - operating leases Working Partners Others Existing ILPs Minimum consecutive trading days Founder Shares Convertible Minimum Consecutive Trading Days Provision for credit losses Minimum trading days with minimum stock price for redemption of warrants Class Of Warrant Or Right Trading Days Minimum For Redemption Minimum trading days for the stock price minimum needs to be met within a 30-day period for the redemption of callable warrants or rights. Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Maximum discount rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Discount Rate Maximum The maximum discount rate assumption that is used in valuing an award. Class of warrant or rights stock price minimum for redemption Class Of Warrant Or Rights Stock Price Minimum For Redemption Minimum stock price for the redemption of callable warrants or rights. Minimum discount rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Discount Rate Minimum The minimum discount rate assumption that is used in valuing an award. Award grant date fair value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Grant Date Fair Value Fair value of awards under share-based payment arrangement. Transaction Pool Share Reserve [Member] Transaction Pool Share Reserve [Member] Transaction Pool Share Reserve. Minimum notice period to redeem warrants Minimum notice period for the redemption of callable warrants or rights. Percentage of shares of Class A common stock outstanding used in the calculation to determine the amount of shares to increase the amount of shares reserved for issuance Class of Warrant or Rights Number Of Securities Called by Warrants or Rights General Share Reserve [Member] General Share Reserve [Member] General Share Reserve. Redemption price per share or per unit of callable warrants or rights. Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period PWP Incentive Plan [Member] PWP Incentive Plan [Member] PWP Incentive Plan [Member]. Number of warrants or rights exercisable. Waiting period before warrants become exercisable Class of Warrant or Rights Waiting Period From Which Warrants or Rights Exercisable Waiting period after the business combination before the warrants or rights become exercisable. Others [Member] Others. Existing Investor Limited Partners [Member] Existing investor limited partners. Lock-up period in which there are restrictions for certain persons on the ability to exchange units for shares of common stock. Deferred tax assets due to step up and difference in basis Deferred Tax Assets Due To Step Up and Difference in Basis Amount before allocation of valuation allowances of deferred tax asset attributable to a step up in the tax basis and the basis difference in an investment Deferred tax assets, income taxes Deferred Tax Assets Income Taxes Amount before allocation of valuation allowances of deferred tax asset attributable to local, foreign and corporate income taxes. Effective income tax rate Effective Income Tax Rate Reconciliation, Percent, Total Effective Income Tax Rate Reconciliation, Percent Litigation costs Default loan Convertible Debt [Member] Total debt, net Total Long Term Debt Net Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt before reclasses to account for debit balances for liability accounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Net capital in excess of required net capital Banking Regulation, Total Risk-Based Capital, Excess, Actual Reconciliation of Cash, Cash Equivalents and Restricted Cash Schedule of Cash and Cash Equivalents [Table Text Block] Disclosure of accounting policy for non-controlling interests Tax Receivable Agreement Tax Receivable Agreement [Policy Text Block] Disclosure of accounting policy for amount due pursuant to tax receivable agreement Derivatives, Policy [Policy Text Block] Disclosure of accounting policy for prepaid expenses and other assets. Information includes, but is not limited to, the composition of prepaid expenses, deferred offering costs and its corresponding accounting treatment. Combined net capital Broker-Dealer, Net Capital, Total Broker-Dealer, Net Capital Amortization expense of intangible assets year five Amortization expense of intangible assets year four Amortization expense of intangible assets year three Amortization expense of intangible assets year two Amortization expense of intangible assets year one Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Five Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Four Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Three Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two Finite-Lived Intangible Assets, Amortization Expense, Next Rolling Twelve Months Finite-Lived Intangible Assets, Net, Amortization Expense, Rolling Maturity [Abstract] Finite-Lived intangible asset, useful life Finite-Lived Intangible Asset, Useful Life Total minimum lease payments Total lease liabilities Thereafter Amount of lessee's undiscounted obligation for lease payment for operating leases, net of sublease income, due after the fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted obligation for lease payment for operating leases, net of sublease income, to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted obligation for lease payment for operating leases, net of sublease income, to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted obligation for lease payment for operating leases, net of sublease income, to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted obligation for lease payment for operating leases, net of sublease income, to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Amount of lessee's undiscounted obligation for lease payment for operating leases, net of sublease income, to be paid in remainder of current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Lessor sublease income to be received. Thereafter Lessee Operating Lease Liability Payments Due After Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Increase (Decrease) In Operating Lease Right Of Use Asset Lessee, Lease, Description [Line Items] New York Office [Member] New York Office [Member] New York Office [Member]. Segments [Domain] Segments [Axis] Lessee, Lease, Description [Table] The period of time that the lessee in a sublease has to provide written notice of termination. Foreign currency translation and other adjustments Recoveries Write-offs Provision for credit losses Beginning balance (1) Allowance For Doubtful Accounts Receivable Foreign Currency Translation Amount of foreign currency translation gain (loss) which (increases) decreases allowance for doubtful accounts on accounts receivable. Accounts Receivable, Allowance for Credit Loss, Recovery Accounts Receivable, Allowance for Credit Loss, Writeoff Change in fair value of warrant liabilities Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Total Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Related party income Technology and infrastructure Communications and Information Technology Compensation and benefits Compensation Expense Excluding Equity Based Compensation Debt Instrument, Debt Default, Amount Guarantee of Indebtedness of Others [Member] Guarantee of Indebtedness of Others [Member] Loss contingency, pending claims, number Loss Contingency, Pending Claims, Number, Ending Balance Loss Contingency, Pending Claims, Number, Beginning Balance Loss Contingency, Pending Claims, Number Indemnification Guarantee [Member] Indemnification Agreement [Member] Loss Contingency, Nature [Domain] Loss Contingency Nature [Axis] Loss Contingency, Estimate of Possible Loss Sponsor Sponsor [Member] Sponsor. Amount of common stock surrendered and forfeited in connection with the business combination. Face amount or stated value per share of common stock surrendered and forfeited in connection with the business combination. Schedule of Allowance for Credit Losses Accounts Receivable, Allowance for Credit Loss [Table Text Block] Schedule of Components of Related Party Revenues and Expenses Schedule of Related Party Transactions [Table Text Block] Private Warrant Public Warrant Electing ILPs Sponsor Related PIPE Investors PIPE Investors PWP OpCo Minimum Maximum Dilutive effect from assumed exercise of warrants, net of tax Convertible Notes [Member] Revenues Unamortized debt discounts and issuance costs Non-Controlling Interests Leasehold Improvements [Member] Leasehold Improvements [Member] Long-Lived Tangible Asset Property Plant And Equipment By Type [Axis] Accumulated Amortization Finite Lived Intangible Assets Accumulated Amortization Customer Relationships [Member] Customer Relationships [Member] Total lease liabilities Operating Lease Liability Total minimum lease payments Lessee Operating Lease Liability Payments Due 2025 Lessee Operating Lease Liability Payments Due Year Four 2024 Lessee Operating Lease Liability Payments Due Year Three 2024 Lessor Sublease Rentals Payments To Be Received Due Year Three Business Combinations [Abstract] Summary of Components of Gross and Net Intangible Asset Schedule Of Finite Lived Intangible Assets Table [Text Block] Summary of Operating Leases Lease Cost Table [Text Block] Entity Address State Or Province Entity Address State Or Province Entity Address City Or Town Entity Address City Or Town Entity Address Address Line1 Entity Address Address Line1 Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Small Business Entity Small Business Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Period Focus Document Fiscal Period Focus Cumulative Effect of Accounting Change Retained Earnings Accumulated Deficit Partners Capital [Member] General Partner [Member] Equity Components Statement Equity Components [Axis] Comprehensive income (loss) Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest Income tax benefit (expense) Income Tax Expense Benefit Lessee Operating Lease Liability Minimum Payments Due Year Five 2024 Lessee Operating Lease Liability Minimum Payments Due Year Three 2023 Lessee Operating Lease Liability Minimum Payments Due Year Two Cash paid for lease obligation Operating Lease Payments Total net lease cost Lease Cost Operating lease cost Operating Lease Cost Contract With Customer Liability Revenue Recognized Accounting Standards Update 2016-13 [Member] Accounting Standards Update201613 [Member] Maturity date Debt Instrument Maturity Date Revolving Credit Facility Revolving Credit Facility [Member] Corporate Note Corporate Note Securities [Member] Transaction Type Transaction Type [Axis] Liability Financial Liabilities Fair Value Disclosure [Abstract] Investments in mutual funds and other Investments Fair Value Disclosure Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Award Type Award Type [Axis] Eurodollar Rate Eurodollar [Member] Statement [Table] Convertible Notes, due 2026 Convertible Notes Due Two Thousand And Twenty Six [Member] Convertible notes due two thousand and twenty six. Cash component of the consideration Business Combination Consideration Transferred1 Implied equity value Business Combination Step Acquisition Equity Interest In Acquiree Fair Value1 Statistical Measurement Range [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Equity Method Investments Equity Method Investments Policy Allowance for Credit Losses Financing Receivable Allowance For Credit Losses Policy Or Methodology Change Policy [Text Block] Accounts Receivable Trade And Other Accounts Receivable Policy Accounts Receivable, Credit Loss Expense (Reversal) Accounts Receivable, Allowance for Credit Loss [Roll Forward] Contract with customer, performance obligation satisfied in previous period Contract with Customer, Performance Obligation Satisfied in Previous Period Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Aggregate amount of transaction price allocated to performance obligations yet to be satisfied Reimbursable expenses recorded as revenue Reimbursable Expenses Recorded As Revenue Certain reimbursed professional fees and other expenses incurred that are necessary to provide services to the client that are recorded as revenue and billed back to the client. Business Combination, Description [Abstract] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Deferred Offering Costs Previous deferred offering costs expensed Previous Deferred Offering Costs Expensed Number of clients over 10% benchmark Number of clients over 10% benchmark. Accounts receivable in aggregate amount Accrued Fees and Other Revenue Receivable Schedule of Changes in Level 3 Liabilities measured at Fair Value Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Significant Unobservable Inputs into the Valuation Model for Private Warrants Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Amount of increase in net assets from de-consolidation of an affiliate. Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Distributions to partners Payments of Capital Distribution The cash outflow from the redemption of the partners interest in connection with the business combination. Principal payment on Revolving Credit Facility Proceeds from Lines of Credit, Total Proceeds from Lines of Credit Payment of Business Combination costs Payments of Merger Related Costs, Financing Activities The net cash inflow from the transactions resulting from the business combination. Purchases of fixed assets Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Accounts receivable, net of allowance Accounts payable, accrued expenses and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued compensation and benefits Increase (Decrease) in Employee Related Liabilities, Total Increase (Decrease) in Employee Related Liabilities Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets, Total Increase (Decrease) in Prepaid Expense and Other Assets Accounts receivable, net of allowance Increase (Decrease) in Accounts Receivable Non-cash operating lease expense Operating Lease, Right-of-Use Asset, Amortization Expense Equity-based compensation Share-based Payment Arrangement, Noncash Expense, Total Share-based Payment Arrangement, Noncash Expense Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Business Information Segment Reporting Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Investment in holdings Investments In Affiliates Subsidiaries Associates And Joint Ventures Fair Value Disclosure Summary of Debt Schedule Of Debt Table [Text Block] Debt Disclosure [Abstract] Fixed Assets Property Plant And Equipment Disclosure [Text Block] Supplemental disclosures of cash flow information Minority Interest Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income Loss Net Of Tax Total assets Assets Assets Deferred Income Tax Assets Net Prepaid expenses and other assets Prepaid Expense And Other Assets Accounts receivable, net of allowance Accounts Receivable Net Restricted cash Restricted Cash Statement [Line Items] Statement [Line Items] Partner Type Partner Type Of Partners Capital Account [Axis] Statement [Table] Supplemental Cash Flow Information [Abstract] Supplemental disclosure of non-cash investing activity Noncash Investing And Financing Items [Abstract] Concentration risk, percentage Concentration Risk Percentage1 Number of reportable segments Number Of Reportable Segments Number of operating segments Number Of Operating Segments PFAC Holdings [Member] P F A C Holdings [Member] PFAC Holdings T S A Non Compensation Related [Member] TSA Non compensation related. Deferred revenue recognized Debt issuance costs Payments Of Debt Issuance Costs Cash flows from financing activities Net Cash Provided By Used In Financing Activities [Abstract] Other Payments For Proceeds From Other Investing Activities General and Administrative Expense, Total Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Stockholders' Equity Attributable to Noncontrolling Interest, Total Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Cash, Beginning Balance Cash, Ending Balance Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Business Combination, Consideration Transferred, Total Accounts Receivable, after Allowance for Credit Loss, Total General, administrative and other expenses General And Administrative Expense Document Information [Line Items] Document Information [Line Items] Class of Warrant or Right [Axis] Public warrants member. Public Warrants [Member] Gain (Loss) on Extinguishment of Debt Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Weighted average period of unrecognized compensation cost to RSUs Earnings Per Share, Basic Earnings Per Share, Basic, Total Basic Common Stock, Value, Issued Accounts Receivable, Allowance for Credit Loss Long-term Debt, Type Longterm Debt Type [Axis] Credit Facility Credit Facility [Domain] Credit Facility Credit Facility [Axis] Depreciation Expense Depreciation Accounting Standards Update Adjustments For New Accounting Pronouncements [Axis] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Timing of Transfer of Good or Service Timing Of Transfer Of Good Or Service [Axis] Cash Cash Ownership Percentage Equity Method Investment Ownership Percentage Common Stock, Value, Issued, Total Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Ending Balance Common stock value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease), Total Balance at Business Combination Balance at end of period Change in fair value Equipment [Member] Equipment [Member] Less: Imputed Interest Lessee Operating Lease Liability Undiscounted Excess Amount Accounting Standards Update Debt instrument, discount Debt Instrument Unamortized Discount Senior Term Loan Senior Loans [Member] Type Of Adoption [Member] Cash, Cash Equivalents and Restricted Cash Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Total financial assets Assets Fair Value Disclosure Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Base Rate Base Rate [Member] Borrowings outstanding under revolving line of credit facility Line Of Credit Deferred compensation programs Increase Decrease In Deferred Compensation Net Carrying Amount Intangible assets, net of accumulated amortization Finite Lived Intangible Assets Net Equity Component Equity Component [Domain] Long-term Line of Credit, Total Debt Instrument, Unamortized Discount, Total Finite-Lived Intangible Assets, Net, Beginning Balance Finite-Lived Intangible Assets, Net, Ending Balance Business Combination Disclosure [Text Block] Business Combination Share-based Payment Arrangement [Text Block] Equity-Based Compensation Short-term Debt, Type [Axis] Geographical [Domain] Consolidated Entities [Domain] Measurement Frequency [Domain] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Professional Partners Award [Member] Professional Partners Award [Member] Deferred tax asset, net Proceeds from Business Combination, including PIPE Investment Class of Stock [Line Items] Common Stock, Shares, Outstanding Common stock shares outstanding Fair Value Adjustment of Warrants Change in fair value of warrant liabilities PWP OpCo, Professional partners and certain other persons. PWP OpCo, Professional Partners and Certain Other Persons [Member] Retained earnings (accumulated deficit) Non-controlling interests Amortization expense Amortization Of Intangible Assets Gross Amount Finite Lived Intangible Assets Gross Trademarks and Trade Names [Member] Trademarks And Trade Names [Member] Finite-Lived Intangible Assets, Major Class Name Gain (Loss) on Extinguishment of Debt, Total Loss on debt extinguishment Warrants intrinsic price per unit. Warrants Intrinsic Price Per unit Warrants intrinsic price per unit Depreciation, Total Restricted Cash, Total Deferred Income Tax Assets, Net, Total Income Tax Expense (Benefit), Total Investments, Fair Value Disclosure, Total Numerator: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Sublease Income Lessor Sublease Rentals Payments To Be Received Due [Abstract] 2023 Lessee Operating Lease Liability Payments Due Year Two 2022 Lessee Operating Lease Liability Payments Due Next Twelve Months Remainder of 2021 Lessee Operating Lease Liability Payments Remainder Of Fiscal Year Operating Leases Operating Lease Liabilities Payments Due [Abstract] 2025 Lessor Sublease Rentals Payments To Be Received Due Year Four 2023 Lessor Sublease Rentals Payments To Be Received Due Year Two 2022 Lessor Sublease Rentals Payments To Be Received Due Year One Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Revenues From External Customers And Long Lived Assets By Geographical Areas Table [Text Block] Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Schedule of Applicable Interest Rate Schedule Of Applicable Interest Rate Table [Text Block] Schedule of applicable interest rate. Summary Of Property, Plant and Equipment Property Plant And Equipment [Text Block] Schedule of Operating Lease Maturities Lessee Operating Lease Liability Maturity Table [Text Block] Schedule of Allowance for Credit Losses Allowance For Credit Losses [Text Block] Entity Incorporation State Country Code Entity Tax Identification Number Entity Tax Identification Number Entity File Number Entity File Number Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Filer Category Entity Filer Category Entity Interactive Data Current Entity Interactive Data Current Entity Current Reporting Status Entity Current Reporting Status Entity Registrant Name Entity Registrant Name Security Exchange Name Security Exchange Name Trading Symbol Trading Symbol Security12b Title Security12b Title Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Amendment Flag Amendment Flag Other Partners Capital Other Partners Capital Account Distributions Equity-based compensation Partners Capital Account Unit Based Compensation Net income (loss) Profit Loss Accumulated Other Comprehensive Income [Member] Statement Of Partners Capital [Abstract] Net Income Loss Income (loss) before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Total non-operating income (expenses) Nonoperating Income Expense Interest expense Interest Expense Foreign Currency Transaction Gain Loss Before Tax Other income (expense) Other Nonoperating Income Expense Non-operating income (expenses) Nonoperating Income Expense [Abstract] Operating income (loss) Operating Income Loss Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Remainder of 2021 Lessor Sublease Rentals Payments To Be Received Remainder Of Fiscal Year Lessor Sublease Rentals Payments To Be Received Due 2025 Lessee Operating Lease Liability Minimum Payments Due Year Four 2022 Lessee Operating Lease Liability Minimum Payments Due Year One Remainder of 2021 Lessee Operating Lease Liability Minimum Payments Remainder Of Fiscal Year Total minimum lease payments Lessee Operating Lease Liability Minimum Payments Due Sublease Income Variable lease cost Variable Lease Cost Weighted-average remaining lease term - operating leases Operating Lease Weighted Average Remaining Lease Term1 Weighted-average discount rate - operating leases Operating Lease Weighted Average Discount Rate Percent Earnings Per Share [Text Block] Net Income (Loss) Per Share Attributable to Class A Common Shareholders Additional Paid-in Capital [Member] Beginning balance, Share Ending balance, Share Beginning balance, Share Numerator abstract. Numerator Abstract Public Warrants Proceeds from Business Combination Foreign Currency Transaction Gain Loss Before Tax After Business Combination Payments for Repurchase of Equity Payments for Repurchase of Equity, Total Lessee, Operating Lease, Renewal Term Extended Lease Term Loss on debt extinguishment Number of founder shares. Number of Founder Shares Founder shares Class Of Warrant Or Right Exercisable Number of class of warrants exercisable Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of warrants. Amount Of Dilutive Securities Warrants Dilutive effect from assumed exercise of warrants, net of tax Foreign currency translation gain (loss) after Business Combination Lease liabilities Total equity Income Tax Expense Benefit Change in fair value of warrant liabilities Common Stock, Forfeited Per Share Value Legacy Awards. Legacy Awards [Member] Electing ILPs [Member] Electing ILPs [Member] Property, plant and equipment, gross Property Plant And Equipment Gross Property Plant And Equipment [Line Items] Property Plant And Equipment [Line Items] Software [Member] Software [Member] Software Furniture and Fixtures [Member] Furniture And Fixtures [Member] Long-Lived Tangible Asset Property Plant And Equipment Type [Domain] Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Interest rate Debt Instrument Interest Rate Stated Percentage Credit Agreement Credit Agreement [Member] Credit Agreement. Research and Development Arrangement, Contract to Perform for Others, Type Research And Development Arrangement Contract To Perform For Others Type [Domain] Research and Development Arrangement, Contract to Perform for Others, Type Research And Development Arrangement Contract To Perform For Others By Type [Axis] NPA First Amendment Note Purchase Agreement First Amendment [Member] Note purchase agreement first amendment. Investments Investment Type Categorization [Member] Investment Type Investment Type [Axis] Subsequent Event Subsequent Event [Member] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event Type Subsequent Event Type [Axis] 2020 Letter Agreements Two Thousand And Twenty Letter Agreements [Member] Two thousand and twenty letter agreements. Letter Agreements Letter Agreements [Member] Letter agreements. Transaction Transaction [Domain] Subordinated Unsecured Convertible Notes Subordinated Unsecured Convertible Notes [Member] Subordinated unsecured convertible notes. Unamortized debt discounts and issuance costs Financial Liabilities Fair Value Disclosure Cash surrender value of company-owned life insurance Cash Surrender Value Fair Value Disclosure 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] Fair Value, Inputs, Level 3 [Member] Fair Value Inputs Level3 [Member] Fair Value Inputs Level2 [Member] Fair Value Inputs Level1 [Member] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Financial assets Financial Assets Fair Value Disclosure [Abstract] Financial assets fair value disclosure[Abstract]. Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Payments of debt restructuring costs Payments Of Debt Restructuring Costs Debt issuance costs Deferred Finance Costs Gross Variable Rate Variable Rate [Domain] Variable Rate Variable Rate [Axis] Principal payments on revolving credit facility Repayments Of Lines Of Credit Senior term loan amount Debt Instrument Face Amount Interest expense Interest Expense Debt Allowance for credit losses, increase Financing Receivable Allowance For Credit Losses Period Increase Decrease Statement Of Financial Position [Abstract] Document Transition Report Document Transition Report Document Quarterly Report Document Quarterly Report Local Phone Number Local Phone Number City Area Code City Area Code Entity Incorporation State Country Code Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net Debt Instrument Carrying Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Long-term Debt, Type Longterm Debt Type [Domain] Revolving Credit Facility, due April 1, 2022, modified Senior Term Loan Revolving Credit Facility Due April One Two Thousand And Twenty Two [Member] Revolving credit facility due April one two thousand and twenty two. Debt Instrument [Table] Debt Instrument [Table] Long Term Debt [Abstract] Unrecognized Tax Benefits Income Taxes Income Tax Disclosure [Text Block] Income Tax Disclosure [Abstract] Property Plant And Equipment [Abstract] Regulatory Requirements [Abstract] Regulatory requirements abstract Intangible Assets Intangible Assets Disclosure [Text Block] Intangible Assets Net Excluding Goodwill [Abstract] Leases Lessee Operating Leases [Text Block] Leases [Abstract] Revenue and Receivables from Contracts with Customers Revenue From Contract With Customer [Text Block] Operating Sublease termination notice, period Lessee Operating Sublease Option To Terminate Notice Deferred revenue Contract With Customer Liability Revenue Remaining Performance Obligation Financing Receivable Allowance For Credit Losses [Line Items] Financing Receivable Allowance For Credit Losses [Line Items] Commitment fee, percentage Debt Instrument Commitment Fee Percentage Debt instrument commitment fee percentage. Revenue From Contract With Customer [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Organization and Nature of Business Nature Of Operations Accounting Policies [Abstract] Cash paid for income taxes Income Taxes Paid Liabilities And Stockholders Equity Partners Capital Commitments And Contingencies Total liabilities Liabilities Total debt, net Debt, net of unamortized debt discounts and issuance costs Long Term Debt Accounts payable, accrued expenses and other liabilities Accounts Payable And Accrued Liabilities Current And Noncurrent Liabilities And Stockholders Equity [Abstract] Right-of-use lease assets Operating Lease Right Of Use Asset Goodwill Goodwill Fixed assets, net Fixed assets, net of accumulated depreciation and amortization Property Plant And Equipment Net Due from related parties Due From Related Parties Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Assets Assets [Abstract] Partner Type of Partners' Capital Account, Name Partner Type Of Partners Capital Account Name [Domain] Compensation And Employee Benefit Plans [Text Block] Lease liabilities arising from obtaining right-of-use lease assets Right Of Use Asset Obtained In Exchange For Operating Lease Liability Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Customer Concentration Risk [Member] Concentration Risk Type Concentration Risk Type [Domain] Concentration Risk Type Concentration Risk By Type [Axis] Aggregate Revenue [Member] Sales Revenue Net [Member] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Potential future awards Other Commitment Litigation Settlement Expense Relief and damages sought value Loss Contingency Damages Sought Value Indemnification provision liability Indemnification Provision Liability Indemnification provision liability. Administrative services fee recieved Payment For Administrative Fees Convertible Notes [Member] Convertible Notes [Member] Convertible Notes. Partner Promissory Notes [Member] Partner Promissory Notes [Member] Partner promissory notes. P W P Capital Holdings L P P W P Capital Holdings L P [Member] PWP Capital Holdings LP Late payments bear interest rate Late Payments Bear Interest Rate Total related party expenses Related Party Transaction Expenses From Transactions With Related Party Related Party Transaction Other Revenues From Transactions With Related Party Related Party Transaction [Line Items] Related Party Transaction [Line Items] TSA Compensation Related [Member] T S A Compensation Related [Member] TSA compensation related. Related Party Related Party [Domain] Related Party Related Party Transactions By Related Party [Axis] Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Net increase (decrease) in cash, cash equivalents and restricted cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities Net cash provided by (used in) investing activities Net Cash Provided By Used In Investing Activities Cash flows from investing activities Increase (Decrease) in Due from Related Parties, Current, Total Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Ending Balance Unrecognized Tax Benefits Software Development [Member] Software Development [Member] Less: Accumulated depreciation and amortization Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Schedule Of Financing Receivable Allowance For Credit Losses [Table] Schedule Of Financing Receivable Allowance For Credit Losses [Table] Revenue From Contract With Customer Excluding Assessed Tax Point in Time [Member] Transferred At Point In Time [Member] Over Time [Member] Transferred Over Time [Member] Timing of Transfer of Good or Service Timing Of Transfer Of Good Or Service [Domain] Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Number Of Clients Number of clients. Accounts Receivable Subsequently Received Accounts receivable subsequently received Cash Equivalents At Carrying Value Net proceeds from the transaction Business Combination Assets And Liabilities Arising From Contingencies Amount Recognized Net proceeds used to redeem ownership interest Net Proceeds Used To Redeem Ownership Interest Net proceeds used to redeem ownership interest. Public equity per share Business Acquisition Share Price Private placement value in public equity Proceeds From Issuance Of Private Placement Business Acquisition [Line Items] Business Acquisition [Line Items] Minimum [Member] Maximum [Member] Statistical Measurement Range [Member] FinTech Acquisition Corp IV [Member] Fin Tech Acquisition Corp I V [Member] FinTech acquisition corp IV member Business Acquisition Business Acquisition [Axis] Schedule Of Business Acquisitions By Acquisition [Table] Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Prepaid Expenses and Other Assets Prepaid Expenses And Other Assets Policy [Text Block] Consolidation Consolidation Policy [Text Block] Use of Estimates Use Of Estimates Basis Of Accounting Policy Policy [Text Block] Subsequent Events Subsequent Events [Text Block] Subsequent Events [Abstract] Segment Reporting [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions [Abstract] Compensation Related Costs [Abstract] Debt Debt Disclosure [Text Block] Cash Equivalents, at Carrying Value, Total Unrecognized Tax Benefits, Beginning Balance Unrecognized Tax Benefits, Ending Balance Accounts Payable and Accrued Liabilities, Total Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total Net Cash Provided By Used In Investing Activities [Abstract] Net cash provided by (used in) operating activities Net Cash Provided By Used In Operating Activities Deferred revenue Increase Decrease In Deferred Revenue Increase (decrease) in operating liabilities: Increase Decrease In Operating Liabilities [Abstract] Deferred tax asset Increase Decrease In Deferred Income Taxes Due from related parties Increase Decrease In Due From Related Parties Current Other Other Noncash Income Expense Amortization of debt discounts and deferred financing costs Amortization Of Financing Costs And Discounts Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities Net Cash Provided By Used In Operating Activities [Abstract] Statement Of Cash Flows [Abstract] Net assets of deconsolidated affiliate Net Assets Of Deconsolidated Affiliate Expenses Operating Expenses [Abstract] Revenues Revenues Income Statement [Abstract] Related Party Revenues [Abstract] Total expenses Operating Expenses Depreciation and amortization Depreciation And Amortization Travel and related expenses Travel And Entertainment Expense Rent and occupancy Occupancy Net Professional fees Professional Fees Total compensation and benefits Labor And Related Expense Equity-based compensation Allocated Share Based Compensation Expense Document Type Document Type Common Class A [Member] Class of Stock Class Of Stock [Domain] Class of Stock Statement Class Of Stock [Axis] Document Information [Table] Document Information [Table] Cover [Abstract] Schedule of Equity-Based Compensation Expense PWP OpCo [Member] Common Class B-1 [Member] Common Class B-1 [Member] Common Stock, Voting Rights PIPE Investors. PIPE Investors [Member] Common Stock, Shares Subscribed but Unissued Common Stock, Value, Subscriptions Class A Common Stock [Member] Class B1 Common Stock [Member] Schedule of Estimated Payments Under Tax Receivable Agreement Estimated Payments Under Tax Receivable Agreement Remainder of Fiscal Year Estimated Payments Under Tax Receivable Agreement Year One Estimated Payments Under Tax Receivable Agreement Year Two Estimated Payments Under Tax Receivable Agreement Year Three Amortization of Debt Issuance Costs and Discounts, Total Contract with Customer, Liability, Total Goodwill, Total Goodwill, Beginning Balance Goodwill, Ending Balance Finite-Lived Intangible Assets, Gross, Total Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Depreciation, Depletion and Amortization, Nonproduction, Total Financial Liabilities Fair Value Disclosure, Total Partners' Capital Account, Distributions, Total Foreign Currency Transaction Gain (Loss), before Tax, Total Amortization of Intangible Assets, Total Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net, Total Estimated Payments Under Tax Receivable Agreement Year Four Estimated Payments Under Tax Receivable Agreement After Year Four Stockholders' Equity Note Disclosure [Text Block] Stockholder's Equity Schedule of Common Stock Outstanding Roll Forward [Table Text Block] Schedule of Common Stock Outstanding Common Class B [Member] Schedule of Stock by Class [Table] Percentage of Shares Outstanding Stock Issued During Period, Shares, New Issues Issuance of common stock Plan Name [Axis] Plan Name [Domain] PWP Omnibus Incentive Plan Awards. PWP Omnibus Incentive Plan Awards [Member] Common Stock, Par or Stated Value Per Share Common stock par value Share Price Professional Partners Awards [Member] Class B1 common stock. Class B1 Common Stock Member Class B2 common stock. Class B2 Common Stock Member Derivative Liability Derivative Liability, Total Warrant liabilities Tax Receivable Agreement Tax Savings Percentage Tax savings agreement, percent Amount due pursuant to tax receivable agreement. Amount Due Pursuant To Tax Receivable Agreement Amount due pursuant to tax receivable agreement Earnings Per Share [Abstract] Warrants Abstract Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Retained Earnings [Member] Noncontrolling Interest [Member] Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Earnings Per Share, Basic and Diluted [Abstract] Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Net income (loss) attributable to Perella Weinberg Partners Class A common stock Basis of Presentation Foreign Currency Transaction Gain Loss Before Tax Prior To Business Combination Foreign currency translation gain (loss) prior to Business Combination Effect of Business Combination Effect of Business Combination Number Of share Repurchase Number Of share Repurchase Total Number Of Share Repurchase Effect of Business Combination On Share Effect of Business Combination On Share Purchase Price Per Share Profit Loss After Business Combination Profit Loss After Business Combination Net income (loss) after Business Combination Partners Capital Account Unit Based Compensation After Business Combination Partners Capital Account Unit Based Compensation After Business Combination Equity-based compensation after Business Combination Preferred Stock, Shares Authorized Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Line of Credit Facility, Maximum Borrowing Capacity London Interbank Offered Rate (LIBOR) [Member] LIBOR Plus Lock-up Period Lock-up period Working partners member. Working Partners [Member] Private Warrants The entire disclosure of the entity's warrants. Warrants Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the exchange of PWP OpCo Units. Other Noncash Income (Expense), Total Other Commitment, Total Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Due from Related Parties, Total Interest Expense, Total Revenues, Total Other Nonoperating Income (Expense), Total Interest Expense, Debt, Total Shares, Outstanding Award vesting period (in years) Net Income (Loss) Available to Common Stockholders, Diluted Retained Earnings (Accumulated Deficit) [Member] Accumulated Other Comprehensive Income (Loss) [Member] Denominator abstract. Denominator Abstract Denominator: Weighted Average Number of Shares Outstanding, Diluted Earnings Per Share, Diluted Earnings Per Share, Diluted, Total Diluted Foreign currency translation gain (loss) Anti-dilutive securities Warrants and Rights Outstanding, Term Warrants, term Class of Warrant or Right, Exercise Price of Warrants or Rights Warrant exercise price Class Of Warrant Or Right Redemption Price Of Warrants Or Rights Warrant redemption price Class Of Warrant Or Right Notice Of Redemption Minimum Period Class of Warrant or Right, Outstanding Warrants outstanding (in shares) Private placement warrants. Private Placement Warrants Member Additional Paid in Capital, Common Stock Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Additional paid-in-capital Stockholders' Equity Attributable to Parent Stockholders' Equity Attributable to Parent, Beginning Balance Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Entity Address, Postal Zip Code Total debt facilities Non Controlling, Interest [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Net Income (Loss) Per Share Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Short-term Debt, Type [Domain] Entity Ex Transition Period Equity [Abstract] Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid for interest Increase (Decrease) In Operating Lease Liabilities Geographical [Axis] UNITED STATES Non-US [Member] United States [Member] International [Member] Cash equivalents Schedule of Variable Interest Entities [Table] Variable Interest Entity [Line Items] Consolidated Entities [Axis] P W P OP CO [Member] Income Tax, Policy [Policy Text Block] Income Taxes Share-based Payment Arrangement [Policy Text Block] Equity-Based Compensation Accounts receivable, subsequently received Number of clients Disaggregation of Revenue [Table Text Block] Schedule of Disaggregation of Revenue Fair Value Measurements And Investments [Abstract] Fair Value Measurements And Investments [Abstract] The entire disclosure for fair value measurements and investments. Fair Value Measurements And Investments Disclosure [Text Block] Fair Value Measurements and Investments Measurement Frequency [Axis] Fair Value, Recurring [Member] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Asset price per share Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Total equity-based compensation Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Total shares remained reserved for issuance Total Perella Weinberg Partners equity / Partners' capital Votes per share Schedule of geographical distribution of revenues and assets based on the location of the office Cadence Bank [Member] Cadence Bank [Member] Dividends Payable, Amount Per Share Cash dividend per share Sponsor Related PIPE Investors [Member] Sponsor Related PIPE Investors [Member] Total financial liabilities Deferred Compensation Liability, Current and Noncurrent Deferred Compensation Liability, Current and Noncurrent, Total Deferred compensation liabilities Class of Warrant or Right [Table] Class of Warrant or Right [Line Items] Class of Warrant or Right [Domain] Private warrants member. Private Warrants [Member] Level 3 Stockholders' Equity Attributable to Parent, Ending Balance Partners' capital Partners' capital Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Issued, Total Repayments of Convertible Debt Common stock, shares issued Redemption of Convertible notes Common stock, shares authorized Statement of Comprehensive Income [Abstract] Net income (loss) attributable to Perella Weinberg Partners Comprehensive Income (Loss), Net of Tax, Attributable to Parent Redemption of Partners Interest Comprehensive income (loss) attributable to Perella Weinberg Partners Entity Central Index Key Entity Central Index Key Amount Of Dilutive Securities Exchange Of P W P OP CO Units Dilutive effect from assumed exchange of PWP OpCo Units, net of tax Net income (loss) attributable to Perella Weinberg Partners - diluted Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Incremental Common Shares Attributable To Exchnage Of P W P OP CO Units Assumed exchange of PWP OpCo Units Weighted average shares of Class A common stock outstanding - diluted Net Income (loss) attributable to Perella Weinberg Partners - diluted The entire disclosure for the regulatory requirements of the reporting entity. Regulatory Requirements [Text Block] Regulatory Requirements Expected Dividend yield Schedule of Estimated Payments Under Tax Receivable Agreement Remainder of 2021 2022 2023 2024 2025 Thereafter Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Warrants Text Block Warrants Weighted-average shares of Class A common stock outstanding Net income (loss) per share attributable to Class A common shareholders Net income (loss) Income (loss) before income taxes Federal funds rate member Federal Funds Rate Member Federal Funds Rate Debt Instrument, Convertible, Conversion Ratio Debt instrument, convertible, conversion ratio 0.50 : 1.00 Combined Leverage Ratio1 Combined leverage ratio1. ≥ 0.50 : 1.00, but 1.50 : 1.00 Combined Leverage Ratio2 Combined leverage ratio 2. ≥ 1.50 : 1.00 Combined Leverage Ratio3 Combined leverage ratio 3. Deferred compensation programs Liabilities and Equity Commitments and Contingencies (Note 18) Total liabilities and equity Less: Net income (loss) attributable to non-controlling interests Net income (loss) Common Stock, Shares Forfeited Net Income (Loss) Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest, Total Less: Net income (loss) attributable to non-controlling interests Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Less: Comprehensive income (loss) attributable to non-controlling interests Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Less: Comprehensive income (loss) attributable to non-controlling interests Common Stock, New Shares Issued, Shares Votes rights Total expenses Partners' Capital Account, Redemptions Public Warrant [Member] Public Warrant [Member] Private Warrant [Member] Private Warrant [Member] Legacy Awards and Professional Partners Awards. Legacy Awards and Professional Partners Awards [Member] Profit Loss Prior To Business Combination Profit Loss Prior To Business Combination Net income (loss) prior to Business Combination Subsequent Event [Table] Partners Capital Account Unit Based Compensation Prior To Business Combination Partners Capital Account Unit Based Compensation Prior To Business Combination Subsequent Event [Line Items] Equity-based compensation prior to Business Combination Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share Attributable to Class A Common Shareholders Organization and Nature of Business Abstract Organization and Nature of Business Abstract Warrant [Member] Warrants to purchase shares of Class A common stock Ownership [Axis] Ownership [Domain]