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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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 24,894	$ 9,133	$ 25,724	$ 23,604
% of Portfolio Segment	0.32%	0.12%	0.33%	0.32%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 12,555	$ 9,133	$ 13,385	$ 23,410
Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	194
Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	12,339	0	12,339	0
Commercial Loans | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 3,358	$ 1,286	$ 4,188	$ 14,932
% of Portfolio Segment	0.13%	0.05%	0.16%	0.58%
Commercial Loans | Commercial real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 3,358	$ 1,286	$ 4,188	$ 14,932
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 real estate | Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	0	0	0	0
Commercial Loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 21,429	$ 5,193	$ 21,429	$ 5,762
% of Portfolio Segment	1.51%	0.36%	1.51%	0.40%
Commercial Loans | Commercial and industrial | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 9,090	$ 5,193	$ 9,090	$ 5,762
Commercial Loans | Commercial and industrial | 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 | Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	12,339	0	12,339	0
Commercial Loans | Consumer real estate | Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period				0
Commercial Loans | Commercial construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 1,621		$ 1,621
% of Portfolio Segment		0.46%		0.46%
Commercial Loans | Commercial construction | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 1,621		$ 1,621
Commercial Loans | Commercial construction | Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period				0
Commercial Loans | Commercial construction | Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		0		0
Commercial Loans | Business banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 1,033
% of Portfolio Segment		0.08%
Commercial Loans | Business banking | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 1,033
Commercial Loans | Business banking | Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period		$ 0		0
Business Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period				$ 1,033
% of Portfolio Segment				0.08%
Business Banking | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period				$ 1,033
Business Banking | Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period				0
Consumer Loans | Consumer real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 107		$ 107	$ 256
% 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	$ 107		$ 107	$ 62
Consumer Loans | Consumer real estate | Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period			0	$ 194
Consumer Loans | Consumer real estate | Payment Delays (Other Than Insignificant)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified in period	$ 0		$ 0

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