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Loan and Lease Financings (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
90 Days or More Past Due and Accruing	$ 249	$ 115
Total Accruing Loans	5,307,508	5,428,913
Nonaccrual	38,706	60,388
Total loans and leases	5,346,214	5,489,301
Increase in interest income	2,620	3,490	$ 690
Commercial and agricultural
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	916,659	1,180,185
Nonaccrual	2,053	5,933
Total loans and leases	918,712	1,186,118
Solar
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	348,302	292,604
Nonaccrual	0	0
Total loans and leases	348,302	292,604
Auto and light truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	579,605	505,424
Nonaccrual	24,170	36,945
Total loans and leases	603,775	542,369
Medium and heavy duty truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	259,467	278,452
Nonaccrual	273	720
Total loans and leases	259,740	279,172
Aircraft
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	897,752	860,632
Nonaccrual	649	828
Total loans and leases	898,401	861,460
Construction equipment
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	747,183	702,515
Nonaccrual	7,090	12,373
Total loans and leases	754,273	714,888
Commercial real estate
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total Accruing Loans	926,345	968,370
Nonaccrual	2,996	1,494
Total loans and leases	929,341	969,864
Residential real estate and home equity
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
90 Days or More Past Due and Accruing	245	108
Total Accruing Loans	499,365	509,661
Nonaccrual	1,225	1,718
Total loans and leases	500,590	511,379
Consumer
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
90 Days or More Past Due and Accruing	4	7
Total Accruing Loans	132,830	131,070
Nonaccrual	250	377
Total loans and leases	133,080	131,447
Current
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	5,301,658	5,424,982
Current | Commercial and agricultural
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	916,659	1,180,151
Current | Solar
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	348,302	292,604
Current | Auto and light truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	579,605	504,659
Current | Medium and heavy duty truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	259,467	278,452
Current | Aircraft
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	894,092	860,632
Current | Construction equipment
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	745,870	701,124
Current | Commercial real estate
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	926,345	968,370
Current | Residential real estate and home equity
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	498,854	508,532
Current | Consumer
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	132,464	130,458
30 to 59 Days Past Due
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	2,987	2,973
30 to 59 Days Past Due | Commercial and agricultural
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	34
30 to 59 Days Past Due | Solar
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
30 to 59 Days Past Due | Auto and light truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	560
30 to 59 Days Past Due | Medium and heavy duty truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
30 to 59 Days Past Due | Aircraft
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	1,130	0
30 to 59 Days Past Due | Construction equipment
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	1,313	1,093
30 to 59 Days Past Due | Commercial real estate
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
30 to 59 Days Past Due | Residential real estate and home equity
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	212	782
30 to 59 Days Past Due | Consumer
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	332	504
60 to 89 Days Past Due
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	2,614	843
60 to 89 Days Past Due | Commercial and agricultural
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
60 to 89 Days Past Due | Solar
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
60 to 89 Days Past Due | Auto and light truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	205
60 to 89 Days Past Due | Medium and heavy duty truck
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
60 to 89 Days Past Due | Aircraft
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	2,530	0
60 to 89 Days Past Due | Construction equipment
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	298
60 to 89 Days Past Due | Commercial real estate
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	0	0
60 to 89 Days Past Due | Residential real estate and home equity
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	54	239
60 to 89 Days Past Due | Consumer
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status
Total loans and leases	$ 30	$ 101

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Amount of financing receivable 90 days or more past due and still accruing.

+ References

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Amount of financing receivable on nonaccrual status.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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