Allowance for Credit Losses - Schedule of Modifications to Debtors Experiencing Financial Difficulty (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026 USD ($) loan	Jun. 30, 2025 USD ($) loan	Jun. 30, 2026 USD ($) loan	Jun. 30, 2025 USD ($) loan
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	7	5	8	12
Amortized Cost Basis \| $	$ 10,346	$ 10,407	$ 11,167	$ 15,787
Related Reserve \| $	$ 175	$ 0	$ 329	$ 0
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	12	20	28	22
Amortized Cost Basis \| $	$ 11,383	$ 1,756	$ 27,132	$ 5,278
Related Reserve \| $	$ 0	$ 0	$ 232	$ 836
Commercial mortgage
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	3	0	3	1
Amortized Cost Basis \| $	$ 4,228	$ 0	$ 4,228	$ 959
Percentage of total class of financing receivable (as a percent)	0.50%	0.00%	0.50%	0.10%
Related Reserve \| $	$ 0	$ 0	$ 0	$ 0
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	10	0	11
Amortized Cost Basis \| $	$ 10,501	$ 0	$ 13,410	$ 0
Percentage of total class of financing receivable (as a percent)	0.012	0	0.015	0
Related Reserve \| $	$ 0	$ 0	$ 0	$ 0
Commercial mortgage \| Extend maturity date
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	3		3
Commercial mortgage \| Extend maturity date, interest only payments, interest rate adjustment
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	10		11
Commercial mortgage \| Extend maturity date and allow additional lender funding
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number				1
Construction and land development
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	1	2	1	4
Amortized Cost Basis \| $	$ 3,500	$ 9,096	$ 3,500	$ 10,492
Percentage of total class of financing receivable (as a percent)	1.10%	3.20%	1.10%	3.70%
Related Reserve \| $	$ 80	$ 0	$ 80	$ 0
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number			4	1
Amortized Cost Basis \| $			$ 12,116	$ 2,971
Percentage of total class of financing receivable (as a percent)			0.038	0.010
Related Reserve \| $			$ 97	$ 402
Construction and land development \| Extend maturity date
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	1	2	1	4
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number			4	1
Commercial, industrial & other finance receivables
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	1	2	1	3
Amortized Cost Basis \| $	$ 2,303	$ 850	$ 2,303	$ 1,927
Percentage of total class of financing receivable (as a percent)	0.50%	0.20%	0.50%	0.50%
Related Reserve \| $	$ 42	$ 0	$ 42	$ 0
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	2	0	2	0
Amortized Cost Basis \| $	$ 882	$ 0	$ 882	$ 0
Percentage of total class of financing receivable (as a percent)	0.002	0	0.002	0
Related Reserve \| $	$ 0	$ 0	$ 0	$ 0
Commercial, industrial & other finance receivables \| Extend maturity date
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	1	2	1	3
Commercial, industrial & other finance receivables \| Interest rate adjustment
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	2		2
Small business loans
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	2	1	3	4
Amortized Cost Basis \| $	$ 315	$ 461	$ 1,136	$ 2,409
Percentage of total class of financing receivable (as a percent)	0.30%	0.30%	0.90%	1.70%
Related Reserve \| $	$ 53	$ 0	$ 207	$ 0
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number			1	1
Amortized Cost Basis \| $			$ 270	$ 551
Percentage of total class of financing receivable (as a percent)			0.002	0.004
Related Reserve \| $			$ 131	$ 434
Small business loans \| Extend maturity date
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number		1		4
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number				1
Small business loans \| Short-term P&I deferment
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number	2
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number			1
Small business loans \| Extend maturity date and short-term interest only
Accruing Modifications to Borrowers Experiencing Financial Difficulty:
Number			3
Residential mortgage
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	0	2	1	2
Amortized Cost Basis \| $	$ 0	$ 911	$ 224	$ 911
Percentage of total class of financing receivable (as a percent)	0	0.004	0.001	0.004
Related Reserve \| $	$ 0	$ 0	$ 0	$ 0
Residential mortgage \| Extend maturity date
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number		2	1	2
Leases
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number	0	18	9	18
Amortized Cost Basis \| $	$ 0	$ 845	$ 230	$ 845
Percentage of total class of financing receivable (as a percent)	0	0.015	0.007	0.015
Related Reserve \| $	$ 0	$ 0	$ 4	$ 0
Leases \| Extend maturity date
Nonaccrual Modifications to Borrowers Experiencing Financial Difficulty:
Number		18	9	18

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

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