REAL ESTATE AND OTHER SECURITIES (AS RESTATED) - Summary of Real Estate Securities in an Unrealized Loss Position (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Outstanding Face Amount	$ 18,562,039	$ 18,112,783
Weighted Average Life (Years)	4 years
Less than 12 Months
Debt Securities, Available-for-sale [Line Items]
Outstanding Face Amount	$ 54,140
Before Credit Impairment - Amortized Cost Basis	52,341
Credit Impairment - Amortized Cost Basis	0
After Credit Impairment - Amortized Cost Basis	52,341
Gross Unrealized Losses - Less than 12 Months	(3,272)
Carrying Value - Less than 12 Months	$ 49,069
Number of Securities - Less than 12 Months | security	53
Weighted Average Coupon	3.00%
Weighted Average Yield	3.80%
Weighted Average Life (Years)	3 years 8 months 12 days
12 or More Months
Debt Securities, Available-for-sale [Line Items]
Outstanding Face Amount	$ 285,222
Before Credit Impairment - Amortized Cost Basis	262,677
Credit Impairment - Amortized Cost Basis	(10,152)
After Credit Impairment - Amortized Cost Basis	252,525
Gross Unrealized Losses - 12 or More Months	(21,216)
Carrying Value - 12 or More Months	$ 231,309
Number of Securities - 12 or More Months | security	114
Weighted Average Coupon	3.60%
Weighted Average Yield	3.70%
Weighted Average Life (Years)	7 years
Total / Weighted Average
Debt Securities, Available-for-sale [Line Items]
Outstanding Face Amount	$ 339,362
Before Credit Impairment - Amortized Cost Basis	315,018
Credit Impairment - Amortized Cost Basis	(10,152)
After Credit Impairment - Amortized Cost Basis	304,866
Gross Unrealized Losses - Total	(24,488)
Carrying Value - Total	$ 280,378
Number of Securities - Total | security	167
Weighted Average Coupon	3.50%
Weighted Average Yield	3.70%
Weighted Average Life (Years)	6 years 4 months 24 days