Fair Value Measurements - Qualitative Valuation (Details) $ in Thousands	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Fair Value
Other real estate owned	$ 5,923	$ 0
Measured on non-recurring basis
Fair Value
Other real estate owned	5,923
Impaired loans		14,799
Mortgage servicing rights	2,297	2,384
Significant Unobservable Inputs (Level 3)
Fair Value
Impaired loans	7,909,933	8,015,243
Significant Unobservable Inputs (Level 3) \| Measured on non-recurring basis
Fair Value
Other real estate owned	5,923
Impaired loans		14,799
Mortgage servicing rights	$ 2,297	$ 2,384
Significant Unobservable Inputs (Level 3) \| Discount for costs to sell \| Appraisal / Other \| Measured on non-recurring basis
Unobservable Inputs
Impaired loans		0.060
Significant Unobservable Inputs (Level 3) \| Discount for costs to sell \| Appraisal \| Measured on non-recurring basis
Unobservable Inputs
Other real estate owned	0.080
Minimum \| Significant Unobservable Inputs (Level 3) \| Prepayment speeds and discount rates \| Discounted cash flow \| Measured on non-recurring basis
Unobservable Inputs
Mortgage servicing rights	0.051	0.053
Maximum \| Significant Unobservable Inputs (Level 3) \| Prepayment speeds and discount rates \| Discounted cash flow \| Measured on non-recurring basis
Unobservable Inputs
Mortgage servicing rights	0.271	0.285
Weighted Average \| Significant Unobservable Inputs (Level 3) \| Prepayment speeds and discount rates \| Discounted cash flow \| Measured on non-recurring basis
Unobservable Inputs
Mortgage servicing rights	0.133	0.130
Weighted Average \| Significant Unobservable Inputs (Level 3) \| Discount rate \| Discounted cash flow \| Measured on non-recurring basis
Unobservable Inputs
Mortgage servicing rights	0.1375	0.1375

Fair Value Measurement Inputs And Valuation Techniques, Fair Value

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Fair Value Measurement Inputs And Valuation Techniques, Unobservable Inputs

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Impaired Financing Receivable, Measurement Input

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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