Fair Value Measurement - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Change in fair value of warrant liabilities		$ (1,813)	$ 1,838	$ (5,492)
Investment Interest Rate		10.20%
Debt, Weighted Average Interest Rate		0.04%
Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment Interest Rate		0.14%
Maximum [Member] | Real Property [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Range of inputs	[1]	10
Maximum [Member] | Collateral Dependent Loans [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Range of inputs	[1]	10
Minimum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment Interest Rate		0.01%
Minimum [Member] | Real Property [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Range of inputs	[1]	0
Minimum [Member] | Collateral Dependent Loans [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Range of inputs	[1]	0
Warrant [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Share price		$ 0.005	$ 0.35
Private Placement Warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Warrants outstanding (in shares)		5.2	5.2
Warrants outstanding		$ 20	$ 1,800
Share price		$ 0.001	$ 0.09
Fair Value Measurement Transfer from Level 3 To Level 2 Description		The fair value of the 5.2 million private placement warrants, estimated using the quoted share price of the public warrants, was approximately $0.001 and $0.09 per warrant or $0.005 and $0.35 per share to arrive at $0.02 and $1.8 million, respectively, as of December 31, 2022 and 2021. Refer to Note 9 for additional details on the private placement warrants.

[1] Previously reported amounts included all real properties and collateral dependent loans regardless of whether an adjustment was required to mark to fair value in the reporting period. The current disclosure represents only those loans and properties for which an adjustment was required to report at fair value on a nonrecurring basis during the reporting periods.