OFFSETTING ASSETS AND LIABILITIES - Offsetting of Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	$ 262,318	$ 50,786
Gross Amount Of Assets Offset In The Balance Sheet	0	0
Net Amount Of Assets Presented In The Balance Sheet	262,318	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	(27,454)	(6,350)
Net Amount Of Assets	234,864	44,436
Payer Swaption [Member]
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	91,195	21,493
Gross Amount Of Assets Offset In The Balance Sheet	0	0
Net Amount Of Assets Presented In The Balance Sheet	91,195	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	(27,149)	(6,350)
Net Amount Of Assets	64,046	15,143
TBA Contracts [Member]
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	1,188
Gross Amount Of Assets Offset In The Balance Sheet	0
Net Amount Of Assets Presented In The Balance Sheet	1,188
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	1,188
Swap [Member]
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	169,630	29,293
Gross Amount Of Assets Offset In The Balance Sheet	0	0
Net Amount Of Assets Presented In The Balance Sheet	169,630	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	169,630	$ 29,293
Interest Rate Cap
Offsetting Assets [Line Items]
Gross Amount Of Recognized Assets	1,188
Gross Amount Of Assets Offset In The Balance Sheet	0
Net Amount Of Assets Presented In The Balance Sheet	1,188
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	$ 1,188