Financial Guarantee Liability - Summary of Changes on Estimated Liability Under Guarantee Liability (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Guaranty LIability:
Beginning balance	$ 28,551	$ 27,729	$ 27,729
Provision for expected credit losses	1,251	$ 2,800	2,634
Credit loss settlement			(1,812)
Ending balance	$ 29,802		$ 28,551