Investments in Real Estate Debt - Schedule of Company's Affiliate Investments In Real Estate Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt and Equity Securities, FV-NI [Line Items]
Fair Value	$ 8,995,939	$ 4,566,306
CMBS
Debt and Equity Securities, FV-NI [Line Items]
Fair Value	3,099,694	1,749,877
Income (Loss)	105,421	(14,950)	$ 77,117
Commercial real estate loans
Debt and Equity Securities, FV-NI [Line Items]
Fair Value	556,571	545,539
Income (Loss)	(11,611)	79,689	0
Total
Debt and Equity Securities, FV-NI [Line Items]
Fair Value	3,656,265	2,295,416
Income (Loss)	$ 93,810	$ 64,739	$ 77,117