Loans and Allowance for Credit Losses - Amortized Cost of Loans to Borrowers, Modified (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 19,547	$ 4,003
% of Portfolio Segment	0.25%	0.05%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 5,794	$ 265
Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	13,753	3,738
Commercial loans \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 19,384	$ 2,092
% of Portfolio Segment	1.47%	0.16%
Commercial loans \| Commercial and industrial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 5,631	$ 0
Commercial loans \| Commercial and industrial \| Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	13,753	2,092
Commercial loans \| Commercial construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 1,006
% of Portfolio Segment		0.27%
Commercial loans \| Commercial construction \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 0
Commercial loans \| Commercial construction \| Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		1,006
Business banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 25
% of Portfolio Segment	0.00%
Business banking \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 25
Consumer loans \| Consumer real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 138	$ 905
% of Portfolio Segment	0.01%	0.05%
Consumer loans \| Consumer real estate \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 138	$ 265
Consumer loans \| Consumer real estate \| Term Extension and Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 640

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

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