Condensed Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Assets
Cash and cash equivalents	$ 115,847	$ 255,906
Restricted cash	1,123	1,144
Accounts receivable, net of allowance	36,234	62,689
Fixed assets, net of accumulated depreciation and amortization	72,566	77,206
Intangible assets, net of accumulated amortization	8,017	12,523
Goodwill	72,691	72,691
Prepaid expenses and other assets	50,450	46,776
Right-of-use lease assets	133,198	138,495
Deferred tax assets, net	154,421	129,581
Total assets	644,965	797,637
Liabilities, Redeemable Non-Controlling Interests, and Equity
Accrued compensation and benefits	54,934	210,268
Accounts payable, accrued expenses and other liabilities	40,775	47,102
Lease liabilities	179,279	186,066
Amount due pursuant to tax receivable agreement	105,625	93,461
Total liabilities	380,613	536,897
Commitments and Contingencies (Note 16)
Redeemable non-controlling interests (20,018,315 units at redemption value of $15.49 per unit as of June 30, 2026; 22,139,506 units at redemption value of $17.53 per unit as of December 31, 2025)	310,142	388,099
Equity
Preferred stock, par value $0.0001 per share (100,000,000 shares authorized, no shares issued and outstanding at June 30, 2026 and December 31, 2025)	0	0
Additional paid-in-capital	229,449	144,197
Retained earnings (accumulated deficit)	(136,635)	(130,596)
Accumulated other comprehensive income (loss)	(3,958)	(2,521)
Treasury stock, at cost (14,073,407 and 14,569,154 shares of Class A common stock at June 30, 2026 and December 31, 2025, respectively)	(134,657)	(138,449)
Total equity	(45,790)	(127,359)
Total liabilities, redeemable non-controlling interests, and equity	644,965	797,637
Class A Common Stock
Equity
Common stock value	9	8
Class B Common Stock
Equity
Common stock value	2	2
Related Party
Assets
Due from related parties	$ 418	$ 626

Amount due pursuant to tax receivable agreement.

No definition available.

Name:	pwp_AmountDuePursuantToTaxReceivableAgreement
Namespace Prefix:	pwp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.