Annual report pursuant to Section 13 and 15(d)

RESIDENTIAL MORTGAGE LOANS - Schedule of Gain on Sale of Originated Mortgage Loans, Net (Details)

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RESIDENTIAL MORTGAGE LOANS - Schedule of Gain on Sale of Originated Mortgage Loans, Net (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Long Lived Assets Held-for-sale [Line Items]      
Gain on loans originated and sold $ 811,288 $ 53,554 $ 47,172
Gain (loss) on settlement of mortgage loan origination derivative instruments (361,755) (53,374) 1,234
MSRs retained on transfer of loans 666,414 374,450 35,311
Other 49,270 27,564 3,977
Realized gain on sale of originated mortgage loans, net 1,165,217 402,194 87,694
Change in fair value 133,967 29,152 (5,324)
Gain on originated mortgage loans, held-for-sale, net 1,399,092 460,107 86,065
Loan origination fees and direct loan origination costs 1,658,600 421,300  
Interest Rate Lock Commitments      
Long Lived Assets Held-for-sale [Line Items]      
Change in fair value 249,183 26,151 23
Derivative Instruments      
Long Lived Assets Held-for-sale [Line Items]      
Change in fair value (115,216) 3,001 (5,347)
Originated Loans, Held For Sale At Fair Value      
Long Lived Assets Held-for-sale [Line Items]      
Change in fair value of loans $ 99,908 $ 28,761 $ 3,695