Secured Financing Agreements - Narrative (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Line of Credit Facility [Line Items]
Minimum unrestricted cash amount	$ 30,000
Debt covenant, recourse (as a percent)	0.050
Cash and cash equivalents	$ 188,370	$ 133,132	$ 191,931
Debt instrument, amount	15,600
Debt covenant, net cash proceeds of additional equity issuances, amount	$ 816,900
Debt covenant, tangible net worth (as a percent)	0.750
Debt covenant, tangible net worth, amount	$ 1,000,000
Debt covenant, target asset leverage ratio (as a percent)	0.718
Debt covenant, total leverage ratio (as a percent)	0.666
Debt covenant, interest coverage ratio, actual	1.5
Through June 30, 2024
Line of Credit Facility [Line Items]
Debt covenant, minimum interest coverage ratio	1.3
Subsequent to June 30, 2024
Line of Credit Facility [Line Items]
Debt covenant, minimum interest coverage ratio	1.4
Maximum
Line of Credit Facility [Line Items]
Debt covenant, target asset leverage ratio (as a percent)	0.775
Debt covenant, total leverage ratio (as a percent)	0.800