Revenue - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Trailing fee liabilities	$ 6,000	$ 5,800
Receivables	$ 46,068	46,647
Loans on non-accrual status	120 days
Accrued interest income	$ 10,700	10,200
Dividend income	4,800
Convertible senior notes
Disaggregation of Revenue [Line Items]
Interest expense	$ 5,100
HELOCs
Disaggregation of Revenue [Line Items]
Loans on non-accrual status	180 days
Minimum
Disaggregation of Revenue [Line Items]
Subscription agreements term	1 month
Maximum
Disaggregation of Revenue [Line Items]
Subscription agreements term	6 months
Platform and referral fees, net
Disaggregation of Revenue [Line Items]
Receivables	$ 25,600	$ 25,800
Capitalized cost amortization term	3 years

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