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MORTGAGE BANKING OPERATIONS - Key Economic Assumptions (Details) - Single family	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques
Servicing asset, measurement input	13.06%	9.84%	10.72%	8.75%
Discount rate
Fair Value Measurement Inputs and Valuation Techniques
Servicing asset, measurement input	10.36%	7.77%	9.19%	8.25%

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