Other Debt - Summary of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Debt Instrument [Line Items]
Interest expense — portfolio related	$ 59,188	$ 45,451	$ 114,863	$ 87,480
Interest expense — corporate debt	6,155	4,139	11,535	8,278
Total interest expense	65,343	49,590	126,398	95,758
Warehouse and Repurchase Facilities
Debt Instrument [Line Items]
Interest expense — portfolio related	6,116	5,910	12,508	10,743
Securitized Debt
Debt Instrument [Line Items]
Interest expense — portfolio related	$ 53,072	$ 39,541	$ 102,355	$ 76,737