Fair Values of Assets and Liabilities - Valuation Assumption Ranges for Derivative Commitments (Details)	Jun. 30, 2026
Minimum \| Expected loan close rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative commitments measurement inputs	0.01
Minimum \| Inherent MSR value (basis points per loan)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative commitments measurement inputs	0.0058
Maximum \| Expected loan close rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative commitments measurement inputs	1
Maximum \| Inherent MSR value (basis points per loan)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative commitments measurement inputs	0.0212
Weighted Average \| Expected loan close rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative commitments measurement inputs	0.86
Weighted Average \| Inherent MSR value (basis points per loan)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative commitments measurement inputs	0.0122

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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