Beneficial Interests - Beneficial Interest Liabilities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Schedule Of Beneficial Interest [Line Items]
Unpaid Principal Balance	$ 742,988,000		$ 742,988,000
Fair Value	28,664,000		28,664,000		$ 0
Beneficial Interests
Schedule Of Beneficial Interest [Line Items]
Fair value losses on beneficial interests	$ (1,956,000)	$ 0	$ (1,956,000)	$ 0