Financial Guarantee Liability - Summary of Changes on Estimated Liability Under Guarantee Liability (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Guaranty LIability:
Beginning balance			$ 25,989	$ 29,581	$ 29,581
Provision (reversal) for expected credit losses	$ 700	$ 1,100	588	$ (5,200)	(3,592)
Ending balance	$ 26,577		$ 26,577		$ 25,989