Loan and Lease Financings (Details 2) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
90 Days or More Past Due and Accruing	$ 50	$ 249
Total Accruing Loans	5,517,726	5,307,508
Nonaccrual	33,490	38,706
Total loans and leases	5,551,216	5,346,214
Accrued interest receivable on loans and leases	13,080	12,940
Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	5,513,480	5,301,658
30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	1,912	2,987
60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	2,284	2,614
Commercial and agricultural
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	841,717	916,659
Nonaccrual	901	2,053
Total loans and leases	842,618	918,712
Commercial and agricultural | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	840,915	916,659
Commercial and agricultural | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	802	0
Commercial and agricultural | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Solar
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	350,472	348,302
Nonaccrual	0	0
Total loans and leases	350,472	348,302
Solar | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	350,472	348,302
Solar | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Solar | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Auto and light truck
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	687,287	579,605
Nonaccrual	21,433	24,170
Total loans and leases	708,720	603,775
Auto and light truck | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	687,206	579,605
Auto and light truck | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	81	0
Auto and light truck | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Medium and heavy duty truck
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	278,211	259,467
Nonaccrual	123	273
Total loans and leases	278,334	259,740
Medium and heavy duty truck | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	278,211	259,467
Medium and heavy duty truck | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Medium and heavy duty truck | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Aircraft
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	959,267	897,752
Nonaccrual	609	649
Total loans and leases	959,876	898,401
Aircraft | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	957,333	894,092
Aircraft | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	1,130
Aircraft | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	1,934	2,530
Construction equipment
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	797,228	747,183
Nonaccrual	6,506	7,090
Total loans and leases	803,734	754,273
Construction equipment | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	797,117	745,870
Construction equipment | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	111	1,313
Construction equipment | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Commercial real estate
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total Accruing Loans	928,246	926,345
Nonaccrual	2,812	2,996
Total loans and leases	931,058	929,341
Commercial real estate | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	928,246	926,345
Commercial real estate | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Commercial real estate | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	0	0
Residential real estate and home equity
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
90 Days or More Past Due and Accruing	46	245
Total Accruing Loans	534,634	499,365
Nonaccrual	955	1,225
Total loans and leases	535,589	500,590
Residential real estate and home equity | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	533,813	498,854
Residential real estate and home equity | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	494	212
Residential real estate and home equity | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	281	54
Consumer
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
90 Days or More Past Due and Accruing	4	4
Total Accruing Loans	140,664	132,830
Nonaccrual	151	250
Total loans and leases	140,815	133,080
Consumer | Current
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	140,167	132,464
Consumer | 30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	424	332
Consumer | 60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by portfolio segment, with delinquency aging and nonaccrual status
Total loans and leases	$ 69	$ 30