Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Income Tax [Line Items]
Excise tax percentage	100.00%		100.00%
Reserve for uncertain income tax positions	$ 0		$ 0		$ 0
Interest for underpayment of income taxes	0		0	$ 0
Penalties for underpayment of income taxes		$ 0
Current portion of income tax expense (benefit)	0	$ 100,000	$ 200,000	$ 200,000
Effective income tax rate (in percent)			0.50%	0.30%
Remaining capital loss carryforwards	174,300,000		$ 174,300,000
Capital loss carryforward					13,300,000
CRE Debt Securities
Income Tax [Line Items]
Remaining capital loss carryforwards						$ 187,600,000
TRSs
Income Tax [Line Items]
Deferred tax assets	0		0		0
Deferred tax liabilities, net	$ 100,000		$ 100,000		$ 100,000
REIT Subsidiaries
Income Tax [Line Items]
Equity interest percentage by parent	100.00%		100.00%
Sub-REIT
Income Tax [Line Items]
Equity interest percentage by parent	100.00%		100.00%
U.S. federal corporate tax rate (in percent)			21.00%