Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Taxes
VIE assets	$ 69,504,196,000	$ 79,043,129,000
Pre-tax income from foreign operations	0	0	$ 0
Valuation allowance changes	0	0	$ 0
Domestic Tax Authority
Income Taxes
Net operating loss carryforward	252,800,000
State and Local Jurisdiction
Income Taxes
Additional operating loss carryforwards	6,200,000
Investing and Servicing Segment | TRS entities
Income Taxes
VIE assets	$ 3,100,000,000	$ 3,200,000,000