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MORTGAGE BANKING OPERATIONS - Key Economic Assumptions (Details) - Multifamily - Discount rate	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Weighted Average
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.1300	0.1300	0.1300
High
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.1500	0.1500
Low
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.1300	0.1300

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