Commitments and Contingencies - Activity of Representation and Warranties Reserve (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Representation And Warranty Reserve [Roll Forward]
Balance, beginning of period	$ 68,222	$ 57,962	$ 62,865	$ 60,495
Additions	10,463	7,527
Losses realized, net	(5,106)	(10,060)
Balance, end of period	$ 68,222	$ 57,962