Loans and Allowance for Credit Losses - Schedule of Loan Modifications to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($) payment	Jun. 30, 2023 USD ($) payment	Jun. 30, 2024 USD ($) payment	Jun. 30, 2023 USD ($) payment	Jun. 30, 2024 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 22,780	$ 2,377	$ 23,699	$ 4,639	$ 27,830
% of Total Portfolio	0.16%	0.02%	0.17%	0.03%
Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 278	1,502
30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				93	808
60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				27	694
90 or More Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				158	0
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				4,361	26,328
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 487	$ 740	$ 1,029	$ 1,600
% of Total Portfolio	0.00%	0.01%	0.01%	0.01%
Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 14,358	$ 965	$ 14,358	$ 1,313
% of Total Portfolio	0.10%	0.01%	0.10%	0.01%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 7,884	$ 340	$ 8,135	$ 340
% of Total Portfolio	0.06%	0.00%	0.06%	0.00%
Combination - Interest Rate Reduction & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 0	$ 33	$ 126	$ 269
% of Total Portfolio	0.00%	0.00%	0.00%	0.00%
Combination - Interest Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 4	$ 71	$ 4	$ 742
% of Total Portfolio	0.00%	0.00%	0.00%	0.01%
Combination - Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 143		$ 171
% of Total Portfolio		0.00%		0.00%
Combination - Interest Rate Reduction, Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 47	$ 85	$ 47	$ 204
% of Total Portfolio	0.00%	0.00%	0.00%	0.00%
Commercial Portfolio Segment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 447		$ 1,155
% of Total Portfolio		0.04%		0.11%
Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 21,340		$ 21,340		21,340
% of Total Portfolio	0.39%		0.39%
Other-than-Insignificant Delay in Repayment | payment	6		6
Term Extension	4 years		4 years
Commercial Portfolio Segment | Commercial real estate | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance					0
Commercial Portfolio Segment | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance					0
Commercial Portfolio Segment | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance					0
Commercial Portfolio Segment | Commercial real estate | 90 or More Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance					0
Commercial Portfolio Segment | Commercial real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance					21,340
Commercial Portfolio Segment | Commercial real estate | Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 13,462		$ 13,462
% of Total Portfolio	0.25%		0.25%
Commercial Portfolio Segment | Commercial real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 7,878		$ 7,878
% of Total Portfolio	0.14%		0.14%
Commercial Portfolio Segment | Business banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 122		$ 154	$ 1,155	379
% of Total Portfolio	0.01%		0.01%
Other-than-Insignificant Delay in Repayment | payment	3	1	3	10
Term Extension	1 year 1 month 6 days	4 years 3 months 18 days	2 years 4 months 24 days	4 years 3 months 18 days
Commercial Portfolio Segment | Business banking | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 278	16
Commercial Portfolio Segment | Business banking | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				93	16
Commercial Portfolio Segment | Business banking | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				27	0
Commercial Portfolio Segment | Business banking | 90 or More Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				158	0
Commercial Portfolio Segment | Business banking | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 877	363
Commercial Portfolio Segment | Business banking | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	14.00%	11.30%	14.00%	9.70%
Commercial Portfolio Segment | Business banking | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	7.50%	8.70%	7.50%	7.20%
Commercial Portfolio Segment | Business banking | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 38	$ 3	$ 38	$ 50
% of Total Portfolio	0.00%	0.00%	0.00%	0.00%
Commercial Portfolio Segment | Business banking | Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 45		$ 45
% of Total Portfolio	0.00%		0.00%
Commercial Portfolio Segment | Business banking | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 0	$ 340	$ 32	$ 340
% of Total Portfolio	0.00%	0.03%	0.00%	0.03%
Commercial Portfolio Segment | Business banking | Combination - Interest Rate Reduction & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 33		$ 94
% of Total Portfolio		0.00%		0.01%
Commercial Portfolio Segment | Business banking | Combination - Interest Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 4	$ 71	$ 4	$ 524
% of Total Portfolio	0.00%	0.01%	0.00%	0.05%
Commercial Portfolio Segment | Business banking | Combination - Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 0		$ 28
% of Total Portfolio		0.00%		0.00%
Commercial Portfolio Segment | Business banking | Combination - Interest Rate Reduction, Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 35	$ 0	$ 35	$ 119
% of Total Portfolio	0.00%	0.00%	0.00%	0.01%
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 926		$ 1,252
% of Total Portfolio		0.04%		0.05%
Residential Real Estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 117		$ 336	$ 1,252	2,793
% of Total Portfolio	0.00%		0.01%
Other-than-Insignificant Delay in Repayment | payment	12	11	12	10
Term Extension		23 years 8 months 12 days	2 years	23 years 8 months 12 days
Residential Real Estate | Residential real estate | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 0	674
Residential Real Estate | Residential real estate | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				0	272
Residential Real Estate | Residential real estate | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				0	402
Residential Real Estate | Residential real estate | 90 or More Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				0	0
Residential Real Estate | Residential real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 1,252	2,119
Residential Real Estate | Residential real estate | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		5.40%		5.40%
Residential Real Estate | Residential real estate | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		3.60%		3.60%
Residential Real Estate | Residential real estate | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 311		$ 311
% of Total Portfolio		0.01%		0.01%
Residential Real Estate | Residential real estate | Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 117	$ 387	$ 117	$ 713
% of Total Portfolio	0.00%	0.02%	0.00%	0.03%
Residential Real Estate | Residential real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 0		$ 219
% of Total Portfolio	0.00%		0.01%
Residential Real Estate | Residential real estate | Combination - Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 143		$ 143
% of Total Portfolio		0.01%		0.01%
Residential Real Estate | Residential real estate | Combination - Interest Rate Reduction, Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 85		$ 85
% of Total Portfolio		0.00%		0.00%
Consumer Portfolio Segment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 1,004		$ 2,232
% of Total Portfolio		0.08%		0.19%
Consumer Portfolio Segment | Consumer home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 1,201		$ 1,869	$ 2,232	3,318
% of Total Portfolio	0.10%		0.15%
Other-than-Insignificant Delay in Repayment | payment	6	11	6	10
Term Extension	7 years 2 months 12 days		7 years 2 months 12 days	17 years 2 months 12 days
Consumer Portfolio Segment | Consumer home equity | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 0	812
Consumer Portfolio Segment | Consumer home equity | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				0	520
Consumer Portfolio Segment | Consumer home equity | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				0	292
Consumer Portfolio Segment | Consumer home equity | 90 or More Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				0	0
Consumer Portfolio Segment | Consumer home equity | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance				$ 2,232	$ 2,506
Consumer Portfolio Segment | Consumer home equity | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	8.00%	7.50%	8.00%	7.10%
Consumer Portfolio Segment | Consumer home equity | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	5.00%	4.00%	4.60%	4.30%
Consumer Portfolio Segment | Consumer home equity | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 449	$ 426	$ 991	$ 1,239
% of Total Portfolio	0.04%	0.04%	0.08%	0.10%
Consumer Portfolio Segment | Consumer home equity | Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 734	$ 578	$ 734	$ 600
% of Total Portfolio	0.06%	0.05%	0.06%	0.05%
Consumer Portfolio Segment | Consumer home equity | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 6		$ 6
% of Total Portfolio	0.00%		0.00%
Consumer Portfolio Segment | Consumer home equity | Combination - Interest Rate Reduction & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 0	$ 0	$ 126	$ 175
% of Total Portfolio	0.00%	0.00%	0.01%	0.01%
Consumer Portfolio Segment | Consumer home equity | Combination - Interest Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance		$ 0		$ 218
% of Total Portfolio		0.00%		0.02%
Consumer Portfolio Segment | Consumer home equity | Combination - Interest Rate Reduction, Term Extension & Other-than-Insignificant Delay in Repayment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Balance	$ 12		$ 12
% of Total Portfolio	0.00%		0.00%