Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

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Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

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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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Period of payment deferral of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

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Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Allowance for Credit Losses - Schedule of Modification of Loans (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 34,426	$ 19,821	$ 72,079	$ 32,117
Percentage of Total Class of Loan	0.10%	0.00%
Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 19,471	$ 18,787
Duration of extension of term	18 months	8 months
Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 38	$ 0
Reduction of Interest Rate (bps)	2.67%	1.31%
Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 32
Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	14,897	0
Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 20	1,002
Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	37 months		37 months
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 20,642	$ 18,948
Percentage of Total Class of Loan	0.30%	0.30%
Commercial \| Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 5,687	$ 18,624
Duration of extension of term	28 months	7 months
Commercial \| Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 38	$ 0
Reduction of Interest Rate (bps)	2.67%	0.25%
Commercial \| Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 32
Commercial \| Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	14,897	0
Commercial \| Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 20	$ 292
Commercial \| Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	37 months		37 months
Commercial real estate \| Construction and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 594		$ 594	701
Percentage of Total Class of Loan	0.00%
Commercial real estate \| Construction and development \| Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 594
Duration of extension of term		11 months
Commercial real estate \| Construction and development \| Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Reduction of Interest Rate (bps)	0.00%
Commercial real estate \| Construction and development \| Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Commercial real estate \| Construction and development \| Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0
Commercial real estate \| Construction and development \| Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0
Commercial real estate \| Non-construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 13,178		24,462	379
Percentage of Total Class of Loan	0.10%
Commercial real estate \| Non-construction \| Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 13,178
Duration of extension of term	3 months
Commercial real estate \| Non-construction \| Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Reduction of Interest Rate (bps)	0.00%
Commercial real estate \| Non-construction \| Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Commercial real estate \| Non-construction \| Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0
Commercial real estate \| Non-construction \| Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances		$ 873	1,156	874
Percentage of Total Class of Loan		0.00%
Residential real estate \| Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances		$ 163
Duration of extension of term		48 months
Residential real estate \| Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances		$ 0
Reduction of Interest Rate (bps)		1.62%
Residential real estate \| Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances		$ 0
Residential real estate \| Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances		0
Residential real estate \| Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances		$ 710
Premium finance receivables—property & casualty \| Premium finance receivables—property & casualty
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 12		$ 12	$ 676
Percentage of Total Class of Loan	0.00%
Premium finance receivables—property & casualty \| Premium finance receivables—property & casualty \| Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 12
Duration of extension of term	1 month
Premium finance receivables—property & casualty \| Premium finance receivables—property & casualty \| Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Reduction of Interest Rate (bps)	0.00%
Premium finance receivables—property & casualty \| Premium finance receivables—property & casualty \| Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Premium finance receivables—property & casualty \| Premium finance receivables—property & casualty \| Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0
Premium finance receivables—property & casualty \| Premium finance receivables—property & casualty \| Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0