SECURED FINANCING - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||
---|---|---|---|---|---|
Mar. 31, 2021 |
Dec. 31, 2020 |
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Debt Disclosure [Abstract] | |||||
Netted amounts | $ 61,202,477 | $ 64,825,239 | [1] | ||
Repurchase agreements - weighted average effective borrowing rates | 0.72% | 0.82% | |||
Repurchase agreements - weighted average remaining maturities | 88 days | 64 days | |||
Repurchase agreement amount | $ 1,600,000 | ||||
Remaining capacity of repurchase agreement | 1,400,000 | ||||
Secured financings and interest rate swaps - collateral held, estimated fair value | 66,900,000 | $ 70,600,000 | |||
Secured financings and interest rate swaps - collateral held, accrued interest | 183,900 | 196,900 | |||
Fair value of collateral received for reverse repurchase agreements | $ 300,000 | $ 250,000 | |||
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