Description of Business and Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) classOfReceivable $ / shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares	Feb. 06, 2025 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Material classes of receivables | classOfReceivable	2
Fair value of loans held for sale	$ 2,204,000	$ 3,712,000
Goodwill	461,349,000	$ 461,349,000
Accumulated impairments to goodwill	$ 0
Net loss per share attributable to common stock—basic (in dollars per share) | $ / shares	$ (1.36)	$ (1.16)	$ (2.99)
Earnings Per Share, Diluted | $ / shares	$ (1.36)	$ (1.16)	$ (2.99)
Technology and development	$ 163,927,000	$ 183,294,000	$ 178,924,000
Net loss	$ (164,801,000)	$ (130,026,000)	$ (321,143,000)
Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Partnership agreement, upfront payment				$ 100,000,000
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Intangible assets, useful life	3 years
Operating lease term	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Intangible assets, useful life	10 years
Operating lease term	11 years