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		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 28,894	$ 12,705	$ 38,936	$ 34,651
% of Portfolio Segment	0.36%	0.17%	0.49%	0.45%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 28,894	$ 12,705	$ 36,944	$ 22,311
Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	12,340
Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			1,992	0
Commercial loans \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 14,574	$ 12,482	$ 14,574	$ 12,482
% of Portfolio Segment	0.49%	0.47%	0.49%	0.47%
Commercial loans \| Commercial real estate \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 14,574	$ 12,482	$ 14,574	$ 12,482
Commercial loans \| Commercial real estate \| Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	0
Commercial loans \| Commercial real estate \| Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	0
Commercial loans \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 14,320		$ 24,089	$ 21,839
% of Portfolio Segment	1.12%		1.89%	1.60%
Commercial loans \| Commercial and industrial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 14,320		$ 22,097	$ 9,499
Commercial loans \| Commercial and industrial \| Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	12,340
Commercial loans \| Commercial and industrial \| Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			1,992	0
Consumer loans \| Consumer real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 223	$ 273	$ 330
% of Portfolio Segment		0.01%	0.01%	0.02%
Consumer loans \| Consumer real estate \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 223	$ 273	$ 330
Consumer loans \| Consumer real estate \| Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	0
Consumer loans \| Consumer real estate \| Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			$ 0	$ 0