Real Estate Securities - Summary of Changes in Fair Value of CMBS Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 0	$ 179,392
Fair Value	$ 0	171,136
CMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		179,392
Credit Loss Allowance		0
Unrealized Gain		0
Unrealized Loss		(8,256)
Fair Value		171,136
CLO
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		123,444
Credit Loss Allowance		0
Unrealized Gain		0
Unrealized Loss		(4,888)
Fair Value		118,556
SASB
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		55,948
Credit Loss Allowance		0
Unrealized Gain		0
Unrealized Loss		(3,368)
Fair Value		$ 52,580

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Publisher FASB
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