Loans, Allowance for Credit Losses and Credit Quality - Amortized Cost of Loan Modifications (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 32,925	$ 32,206
Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	8,856	23,744
Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount		51
Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	13,067	251
Other-Than Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	11,002	8,160
Commercial And Industrial [Member] \| Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 5,204	$ 9,725
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.17%	0.33%
Added weighted-average contractual term to the life of the loan	11 months	3 months
Commercial And Industrial [Member] \| Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount		$ 179
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage		0.01%
Added weighted-average contractual term to the life of the loan		1 year 6 months
Commercial And Industrial [Member] \| Extended Maturity and Interest Rate Reduction [Member] \| Maximum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate		10.10%
Commercial And Industrial [Member] \| Extended Maturity and Interest Rate Reduction [Member] \| Minimum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate		7.20%
Commercial And Industrial [Member] \| Other-Than Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 11,002	$ 8,160
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage		0.28%
Commercial Real Estate [Member] \| Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 3,375	$ 3,375
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.05%	0.05%
Added weighted-average contractual term to the life of the loan	4 years 6 months	6 months
Commercial Real Estate [Member] \| Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 12,109
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.18%
Commercial Real Estate [Member] \| Extended Maturity and Interest Rate Reduction [Member] \| Maximum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate	8.01%
Commercial Real Estate [Member] \| Extended Maturity and Interest Rate Reduction [Member] \| Minimum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate	7.45%
Construction Loans [Member] \| Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount		$ 10,644
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage		1.28%
Added weighted-average contractual term to the life of the loan	6 months	5 months
Residential Real Estate [Member] \| Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 277
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.01%
Added weighted-average contractual term to the life of the loan	17 years 9 months 18 days
Home Equity Loan [Member] \| Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Added weighted-average contractual term to the life of the loan	25 years
Home Equity Loan [Member] \| Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 958	$ 72
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.08%	0.01%
Added weighted-average contractual term to the life of the loan		8 years 1 month 6 days
Home Equity Loan [Member] \| Extended Maturity and Interest Rate Reduction [Member] \| Maximum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate	7.25%	10.00%
Home Equity Loan [Member] \| Extended Maturity and Interest Rate Reduction [Member] \| Minimum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate	6.88%	6.80%
Small Business [Member] \| Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount		$ 51
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage		0.02%
Small Business [Member] \| Contractual Interest Rate Reduction [Member] \| Maximum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate		11.00%
Small Business [Member] \| Contractual Interest Rate Reduction [Member] \| Minimum [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Reduced weighted-average contractual interest rate		8.20%

Percentage of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

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