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

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Loans and Allowance for Credit Losses - Amortized Cost of Loans to Borrowers, Modified (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 5,634	$ 10,193	$ 21,977	$ 12,497
% of Portfolio Segment	0.07%	0.13%	0.27%	0.16%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 231	$ 9,563	$ 4,425	$ 9,825
Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	5,403	630	17,552	2,672
Commercial loans \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 3,520		$ 3,520
% of Portfolio Segment	0.13%		0.13%
Commercial loans \| Commercial real estate \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 0		$ 0
Commercial loans \| Commercial real estate \| Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	3,520
Commercial loans \| Commercial real estate \| Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			3,520
Commercial loans \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 1,883	$ 9,549	$ 18,070	$ 11,591
% of Portfolio Segment	0.13%	0.72%	1.28%	0.88%
Commercial loans \| Commercial and industrial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 0	$ 9,549	$ 4,038	$ 9,549
Commercial loans \| Commercial and industrial \| Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	1,883	0	14,032	2,042
Consumer loans \| Consumer real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 231	$ 644	$ 369	$ 906
% of Portfolio Segment	0.01%	0.03%	0.02%	0.05%
Consumer loans \| Consumer real estate \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 231	$ 14	$ 369	$ 276
Consumer loans \| Consumer real estate \| Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 0	$ 630		$ 630
Business banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			$ 18
% of Portfolio Segment			0.00%
Business banking \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			$ 18