OFFSETTING ASSETS AND LIABILITIES - Offsetting of Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	$ 198,034	$ 50,786
Gross Amount Of Assets Offset In The Balance Sheet	0	0
Net Amount Of Assets Presented In The Balance Sheet	198,034	50,786
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	(45,021)	(6,350)
Net Amount Of Assets	153,013	44,436
Payer Swaption [Member]
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	88,852	21,493
Gross Amount Of Assets Offset In The Balance Sheet	0	0
Net Amount Of Assets Presented In The Balance Sheet	88,852	21,493
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	(43,249)	(6,350)
Net Amount Of Assets	45,603	15,143
TBA Contracts [Member]
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	3,387
Gross Amount Of Assets Offset In The Balance Sheet	0
Net Amount Of Assets Presented In The Balance Sheet	3,387
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	0
Net Amount Of Assets	3,387
Swap [Member]
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	104,138	29,293
Gross Amount Of Assets Offset In The Balance Sheet	0	0
Net Amount Of Assets Presented In The Balance Sheet	104,138	29,293
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	0	0
Net Amount Of Assets	104,138	$ 29,293
Interest Rate Cap
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	3,387
Gross Amount Of Assets Offset In The Balance Sheet	0
Net Amount Of Assets Presented In The Balance Sheet	3,387
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	0
Net Amount Of Assets	$ 3,387