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MORTGAGE BANKING OPERATIONS - Key Economic Assumptions (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
CPRs | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.0682		0.0682		0.0660
CPRs | Single family | Low
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.0505		0.0505		0.0600
CPRs | Single family | High
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.1213		0.1213		0.1350
CPRs | Single family | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques
Servicing asset, measurement input	19.24%	17.46%	18.67%	18.28%
Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.0913		0.0913		0.1100
Discount rate | Single family | Low
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.0869		0.0869		0.1000
Discount rate | Single family | High
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.1585		0.1585		0.1700
Discount rate | Single family | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques
Servicing asset, measurement input	11.28%	10.45%	10.77%	10.33%

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