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Loans and Allowance for Credit Losses - Past due aging analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Past due aging analysis of loans
Loans	$ 2,799,475	$ 2,759,583
Nonaccrual	7,345	8,596
30-59 Days Past Due
Past due aging analysis of loans
Loans	6,118	2,789
60-89 Days Past Due
Past due aging analysis of loans
Loans	101	601
90 Days or More Past Due
Past due aging analysis of loans
Loans		139
Current
Past due aging analysis of loans
Loans	2,785,911	2,747,458
Commercial
Past due aging analysis of loans
Loans	1,890,609	1,849,267
Nonaccrual	6,288	7,710
Commercial | 30-59 Days Past Due
Past due aging analysis of loans
Loans	1,067	1,052
Commercial | 60-89 Days Past Due
Past due aging analysis of loans
Loans	43
Commercial | 90 Days or More Past Due
Past due aging analysis of loans
Loans		139
Commercial | Current
Past due aging analysis of loans
Loans	1,883,211	1,840,366
Commercial | Commercial and industrial
Past due aging analysis of loans
Loans	611,695	598,321
Nonaccrual	5,486	6,595
Commercial | Commercial and industrial | 30-59 Days Past Due
Past due aging analysis of loans
Loans	593	924
Commercial | Commercial and industrial | 60-89 Days Past Due
Past due aging analysis of loans
Loans	43
Commercial | Commercial and industrial | 90 Days or More Past Due
Past due aging analysis of loans
Loans		139
Commercial | Commercial and industrial | Current
Past due aging analysis of loans
Loans	605,573	590,663
Commercial | Real estate construction
Past due aging analysis of loans
Loans	125,966	124,034
Commercial | Real estate construction | Current
Past due aging analysis of loans
Loans	125,966	124,034
Commercial | Commercial real estate
Past due aging analysis of loans
Loans	1,152,948	1,126,912
Nonaccrual	802	1,115
Commercial | Commercial real estate | 30-59 Days Past Due
Past due aging analysis of loans
Loans	474	128
Commercial | Commercial real estate | Current
Past due aging analysis of loans
Loans	1,151,672	1,125,669
Consumer
Past due aging analysis of loans
Loans	908,866	910,316
Nonaccrual	1,057	886
Consumer | 30-59 Days Past Due
Past due aging analysis of loans
Loans	5,051	1,737
Consumer | 60-89 Days Past Due
Past due aging analysis of loans
Loans	58	601
Consumer | Current
Past due aging analysis of loans
Loans	902,700	907,092
Consumer | Residential | Real estate first mortgage
Past due aging analysis of loans
Loans	722,151	726,879
Nonaccrual	627	638
Consumer | Residential | Real estate first mortgage | 30-59 Days Past Due
Past due aging analysis of loans
Loans	4,478	901
Consumer | Residential | Real estate first mortgage | 60-89 Days Past Due
Past due aging analysis of loans
Loans		554
Consumer | Residential | Real estate first mortgage | Current
Past due aging analysis of loans
Loans	717,046	724,786
Consumer | Residential | Real estate junior lien
Past due aging analysis of loans
Loans	156,882	154,134
Nonaccrual	429	248
Consumer | Residential | Real estate junior lien | 30-59 Days Past Due
Past due aging analysis of loans
Loans	509	666
Consumer | Residential | Real estate junior lien | 60-89 Days Past Due
Past due aging analysis of loans
Loans	25
Consumer | Residential | Real estate junior lien | Current
Past due aging analysis of loans
Loans	155,919	153,220
Consumer | Other revolving and installment
Past due aging analysis of loans
Loans	29,833	29,303
Nonaccrual	1
Consumer | Other revolving and installment | 30-59 Days Past Due
Past due aging analysis of loans
Loans	64	170
Consumer | Other revolving and installment | 60-89 Days Past Due
Past due aging analysis of loans
Loans	33	47
Consumer | Other revolving and installment | Current
Past due aging analysis of loans
Loans	$ 29,735	$ 29,086

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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