Loans and Allowance for Credit Losses for Loans - Financing Receivable, 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, Modified [Line Items]
Total	$ 176,687	$ 156,484	$ 218,053	$ 253,784
% of Total Loan Class	0.36%	0.32%	0.44%	0.51%
Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 0	$ 924	$ 0	$ 924
Term extension
Financing Receivable, Modified [Line Items]
Total	57,912	44,356	72,751	125,302
Financing receivable, modified, increase (decrease) from modification				2,153
Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	10,375	0	11,366	16,354
Term extension and principal forgiveness
Financing Receivable, Modified [Line Items]
Total	0	0	20,573	0
Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	108,400	111,204	113,363	111,204
Commercial and industrial
Financing Receivable, Modified [Line Items]
Total	$ 37,663	$ 8,480	$ 52,375	$ 88,484
% of Total Loan Class	0.35%	0.09%	0.49%	0.90%
Commercial and industrial | Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 0	$ 924	$ 0	$ 924
Commercial and industrial | Term extension
Financing Receivable, Modified [Line Items]
Total	26,992	7,556	37,134	87,427
Commercial and industrial | Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	10,375	0	10,375	133
Commercial and industrial | Term extension and principal forgiveness
Financing Receivable, Modified [Line Items]
Total	0	0	0	0
Commercial and industrial | Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	296	0	4,866	0
Commercial Real Estate | Commercial real estate
Financing Receivable, Modified [Line Items]
Total	$ 138,356	$ 148,004	$ 165,010	$ 164,431
% of Total Loan Class	0.53%	0.55%	0.63%	0.61%
Commercial Real Estate | Interest rate reduction | Commercial real estate
Financing Receivable, Modified [Line Items]
Total	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate | Term extension
Financing Receivable, Modified [Line Items]
Financing receivable, modified, increase (decrease) from modification				2,153
Commercial Real Estate | Term extension | Commercial real estate
Financing Receivable, Modified [Line Items]
Total	30,252	36,800	34,949	37,006
Commercial Real Estate | Term extension and interest rate reduction | Commercial real estate
Financing Receivable, Modified [Line Items]
Total	0	0	991	16,221
Commercial Real Estate | Term extension and principal forgiveness | Commercial real estate
Financing Receivable, Modified [Line Items]
Total	0	0	20,573	0
Commercial Real Estate | Other than Insignificant Payment Delay | Commercial real estate
Financing Receivable, Modified [Line Items]
Total	108,104	$ 111,204	108,497	111,204
Residential mortgage
Financing Receivable, Modified [Line Items]
Total	$ 668		$ 668	$ 869
% of Total Loan Class	0.01%		0.01%	0.02%
Residential mortgage | Interest rate reduction
Financing Receivable, Modified [Line Items]
Total	$ 0		$ 0	$ 0
Residential mortgage | Term extension
Financing Receivable, Modified [Line Items]
Total	668		668	869
Residential mortgage | Term extension and interest rate reduction
Financing Receivable, Modified [Line Items]
Total	0		0	0
Residential mortgage | Term extension and principal forgiveness
Financing Receivable, Modified [Line Items]
Total				0
Residential mortgage | Other than Insignificant Payment Delay
Financing Receivable, Modified [Line Items]
Total	$ 0		$ 0	$ 0