Financial Guarantee Liability - Narrative (Details) $ in Thousands	12 Months Ended
Dec. 31, 2025 USD ($) loan	Dec. 31, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Guarantor Obligations
Outstanding loan balances	$ 36,200,000	$ 32,100,000
Maximum loss potential	11,400,000	10,000,000
Provision (reversal) for expected credit losses	$ 4,295	(1,891)	$ 2,600
Delinquency threshold period	60 days
Financial guarantee liability, settlement loss			$ 300
Delinquent
Guarantor Obligations
Outstanding loan balances	$ 5,100	5,100
Maximum loss potential	$ 1,700	1,700
Number of loans \| loan	1
Advances for principal and interest	$ 1,000	2,100
Liquidation value of loans outstanding	$ 6,300	6,100
Potential loss on liquidation of loan		$ 200
Foreclosure
Guarantor Obligations
Number of loans \| loan		1
Maximum \| Fannie Mae DUS or Freddie TAH Loans
Guarantor Obligations
Percentage of contingent liability of actual losses incurred on outstanding loans	33.00%