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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, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 19,821	$ 3,122	$ 32,117	$ 25,976
Percentage of Total Class of Loan	0.00%	0.00%
Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 18,787	$ 1,929
Duration of Extension of Term (months)	8 months	16 months
Reduction of  Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 183
Reduction of  Interest Rate (bps)	1.31%	2.15%
Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 32
Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 883
Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 1,002	$ 127
Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)		16 months		16 months
Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months		0 months
Commercial | Commercial, industrial and other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 18,948	$ 1,629	$ 29,487	$ 16,011
Percentage of Total Class of Loan	0.30%	0.00%
Commercial | Commercial, industrial and other | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 18,624	$ 1,502
Duration of Extension of Term (months)	7 months	10 months
Commercial | Commercial, industrial and other | Reduction of  Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0
Reduction of  Interest Rate (bps)	0.25%	2.19%
Commercial | Commercial, industrial and other | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 32
Commercial | Commercial, industrial and other | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0
Commercial | Commercial, industrial and other | Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 292	$ 127
Commercial | Commercial, industrial and other | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Percentage of Total Class of Loan	0.00%
Commercial real estate | Construction and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0		$ 701	$ 2,495
Commercial real estate | Construction and development | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Duration of Extension of Term (months)	0 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 | Construction and development | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months		0 months
Commercial real estate | Non-construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 1,176	$ 379	$ 6,161
Percentage of Total Class of Loan	0.00%	0.00%
Commercial real estate | Non-construction | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 293
Duration of Extension of Term (months)	0 months	47 months
Commercial real estate | Non-construction | Reduction of  Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0
Reduction of  Interest Rate (bps)	0.00%	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	$ 883
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	$ 0
Commercial real estate | Non-construction | Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)		16 months		16 months
Commercial real estate | Non-construction | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months		0 months
Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 98	$ 0	$ 616
Percentage of Total Class of Loan	0.00%	0.00%
Home equity | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 98
Duration of Extension of Term (months)	0 months	12 months
Home equity | Reduction of  Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0
Reduction of  Interest Rate (bps)	0.00%	0.00%
Home equity | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Home equity | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0
Home equity | Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0
Home equity | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 873	$ 218	$ 874	$ 612
Percentage of Total Class of Loan	0.00%	0.00%
Residential real estate | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 163	$ 35
Duration of Extension of Term (months)	48 months	37 months
Residential real estate | Reduction of  Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 183
Reduction of  Interest Rate (bps)	1.62%	2.01%
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	$ 0
Residential real estate | Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 710	$ 0
Residential real estate | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months
Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 1	$ 676	$ 81
Percentage of Total Class of Loan	0.00%	0.00%
Premium finance receivables | Property and casualty insurance loans | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 1
Duration of Extension of Term (months)	0 months	0 years
Premium finance receivables | Property and casualty insurance loans | Reduction of  Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0
Reduction of  Interest Rate (bps)	0.00%	0.00%
Premium finance receivables | Property and casualty insurance loans | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0
Premium finance receivables | Property and casualty insurance loans | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0
Premium finance receivables | Property and casualty insurance loans | Extension of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0
Premium finance receivables | Property and casualty insurance loans | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months

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