Commercial Loans - Narrative (Details) $ in Thousands		1 Months Ended		6 Months Ended
	Sep. 15, 2021 USD ($)	Feb. 28, 2022 USD ($)	Mar. 31, 2019 USD ($)	Jun. 30, 2022 USD ($) loan entity trust	Dec. 31, 2021 USD ($)
Variable Interest Entity [Line Items]
Variable interest entity, number of entity | entity				1
Number of trusts | trust				2
No of Loans | loan				2
Proceeds from sale of foreclosed assets		$ 55,900
Real estate held for development ang sale, net		42,000
Gain on sale		$ 12,200
CSMC Trust
Variable Interest Entity [Line Items]
Variable interest entity, amount acquired, interest rate				8.80%
Debt instrument, basis spread on variable rate				4.38%
Securitized commercial loans
Variable Interest Entity [Line Items]
Coupon  Rate				59.70%
Commercial Loans
Variable Interest Entity [Line Items]
Principal				$ 192,155
No of Loans | loan				7
RETL Trust | Securitized commercial loans
Variable Interest Entity [Line Items]
Amount acquired, eliminated in consolidation			$ 65,300
Variable interest entity, amount acquired, eligible risk retention	$ 45,300		$ 45,300
Eligible risk retention percentage			5.00%
CSMC Trust
Variable Interest Entity [Line Items]
Principal				$ 1,385,591	$ 1,385,591
CSMC Trust | Class F | Secured Debt
Variable Interest Entity [Line Items]
Debt instrument, debt default, amount				14,900
CSMC Trust | Securitized commercial loans
Variable Interest Entity [Line Items]
Principal				1,400,000
CRE 3 | Commercial Loans | Retail
Variable Interest Entity [Line Items]
Principal				90,000
Loss on investment				$ 26,900