Capitalized Software and Other Intangibles - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 08, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 22, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
System development costs				$ 25,300	$ 39,200
Amortization of intangible assets		$ 1,900	$ 2,000	5,500	6,000
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangibles written off	$ 800
System development costs
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of system development costs		10,800	9,000	31,600	$ 24,700
System development costs		7,000	$ 13,800
Capitalized computer software, gross		160,630		160,630		$ 135,303
Acquired developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Capitalized computer software, gross		$ 48,500		$ 48,500		$ 48,500
Acquired developed technology | Oportun Savings (Formerly Digit)
Acquired Finite-Lived Intangible Assets [Line Items]
Capitalized computer software, gross							$ 48,500