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MORTGAGE BANKING OPERATIONS - Key Economic Assumptions (Details) - Discount rate	Sep. 30, 2025
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Fair Value Measurement Inputs and Valuation Techniques
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Fair Value Measurement Inputs and Valuation Techniques
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Fair Value Measurement Inputs and Valuation Techniques
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Fair Value Measurement Inputs and Valuation Techniques
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Maximum | Multifamily
Fair Value Measurement Inputs and Valuation Techniques
Measurement input (as a percent)	0.1500

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