Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended			9 Months Ended
	Sep. 30, 2023 USD ($) institution shares	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2023 USD ($) segment institution shares	Sep. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 16, 2021 shares
Accounting Policies [Line Items]
Allowance of bad debt	$ 9,162,000	$ 13,874,000		$ 9,162,000	$ 13,874,000	$ 9,222,000	$ 12,232,000	$ 7,971,000	$ 5,169,000
Equity securities without readily determinable fair value	3,500,000			3,500,000			3,500,000
Impairment loss	0	0		0	0
Impairment charges	2,300,000	0		2,300,000	0
Goodwill impairment	0	0		0	0
Impairment of charges intangible assets	6,100,000	0		6,100,000	0
Lease, cost	2,200,000	2,300,000		6,600,000	7,100,000
Contra rent expense	500,000	500,000		1,600,000	1,300,000
Impairment of right-of-use asset and investment securities	$ 0	0		$ 0	600,000
Tax receivable agreement liabilities as percent of expected benefit	85.00%			85.00%
Tax receivable agreement, percent recorded in additional paid-in capital	15.00%			15.00%
Tax receivable agreement, liability	$ 1,200,000			$ 1,200,000			$ 500,000
Change in tax receivable agreement liability	(69,000)	0		(689,000)	0
Advertising expense	3,500,000	2,300,000		$ 8,100,000	12,600,000
Requisite service period				2 years
Defined contribution cost	900,000	700,000		$ 1,900,000	1,900,000
Discharge of holdback obligation related to prior acquisition	3,700,000			3,705,000	0
Benefit from income taxes	$ 0	$ (2,641,000)		$ 0	(5,699,000)
Impact of Tax Receivable Agreement due to exchanges of Units			$ 11,625,000
Number of operating segments | segment				1
Number of reporting units | segment				1
Number of financial institutions with cash balance exceeding FDIC limit | institution	4			4
Deferred Income Tax Assets
Accounting Policies [Line Items]
Impact of Tax Receivable Agreement due to exchanges of Units					28,500,000
Tax Receivable Liability
Accounting Policies [Line Items]
Impact of Tax Receivable Agreement due to exchanges of Units					$ 14,300,000
Maximum
Accounting Policies [Line Items]
Employer matching contribution, percent of match				3.50%
Class A Common Stock, $0.0001 par value per share
Accounting Policies [Line Items]
Number of reportable segments | segment				1
Minimum requirement for cash settlement as percent of stockholders										50.00%
Payment to continuing members as percent of amount of tax benefit	85.00%			85.00%
Public Warrants
Accounting Policies [Line Items]
Origination warrants (in shares) | shares										12,499,993
Warrants outstanding (in shares) | shares	12,499,973			12,499,973
Private Placement Warrants
Accounting Policies [Line Items]
Number of reportable segments | segment				7,000,000
Warrants outstanding (in shares) | shares	7,000,000			7,000,000
Computer equipment
Accounting Policies [Line Items]
Property and equipment, useful life	3 years			3 years
Furniture and fixtures
Accounting Policies [Line Items]
Property and equipment, useful life	7 years			7 years
Software Development [Member]
Accounting Policies [Line Items]
Property and equipment, useful life	3 years			3 years
Enhancements
Accounting Policies [Line Items]
Property and equipment, useful life	3 years			3 years
California | Revenue Benchmark | Geographic Concentration Risk
Accounting Policies [Line Items]
Concentration risk, percentage	52.00%	53.00%		54.00%	56.00%