DERIVATIVE FINANCIAL INTSTRUMENTS - Summary of Outstanding Swaptions (Details) - Payer Swaption [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Long [Member]
Derivatives, Fair Value [Line Items]
Swaption Cost	$ 42,497	$ 36,690
Net Estimated Fair Value	$ 91,195	$ 21,493
Derivative Instruments Average Months To Expiration	23 months 24 days	14 months 21 days
Notional Amount	$ 1,383,600	$ 400,000
Derivative Average Fixed Interest Rate	2.90%	2.27%
Term (Years)	10 years	11 years 10 months 24 days
Less Than Or Equal To One Year [Member] | Short [Member]
Derivatives, Fair Value [Line Items]
Swaption Cost	$ 17,500	$ 16,185
Net Estimated Fair Value	$ (52,315)	$ 4,423
Derivative Instruments Average Months To Expiration	4 months 21 days	5 months 9 days
Notional Amount	$ 958,300	$ 1,331,500
Derivative Average Fixed Interest Rate	2.95%	2.29%
Term (Years)	10 years	11 years 4 months 24 days
Less Than Or Equal To One Year [Member] | Long [Member]
Derivatives, Fair Value [Line Items]
Swaption Cost	$ 35,230	$ 4,000
Net Estimated Fair Value	$ 83,470	$ 1,575
Derivative Instruments Average Months To Expiration	10 months 18 days	3 months 6 days
Notional Amount	$ 1,303,600	$ 1,258,500
Derivative Average Fixed Interest Rate	2.95%	1.66%
Term (Years)	10 years	5 years
One Year To Two Years [Member] | Long [Member]
Derivatives, Fair Value [Line Items]
Swaption Cost	$ 7,267	$ 32,690
Net Estimated Fair Value	$ 7,725	$ 19,918
Derivative Instruments Average Months To Expiration	238 months 27 days	18 months 12 days
Notional Amount	$ 80,000	$ 1,658,500
Derivative Average Fixed Interest Rate	2.07%	2.46%
Term (Years)	10 years	14 years 1 month 6 days