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Loan and Lease Financings (Details 2) | 12 Months Ended |
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Dec. 31, 2021 USD ($) class method | Dec. 31, 2020 USD ($)
Receivables [Abstract] |  |
Number of methods to assess credit risk | method | 2 |
Loan and Lease Financings |  |
Amortized cost of loans and leases | $ 5,346,214,000 | $ 5,489,301,000
Number of domestic aircraft loan pools | class | 2 |
Commercial and agricultural |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | $ 238,194,000 | 532,604,000
Financing receivable originated one year prior to current fiscal year | 124,141,000 | 104,819,000
Financing receivable originated two years prior to current fiscal year | 64,411,000 | 118,977,000
Financing receivable originated three years prior to current fiscal year | 57,604,000 | 59,514,000
Financing receivable originated four years prior to current fiscal year | 34,549,000 | 23,223,000
Financing receivable originated five years or more prior to current fiscal year | 20,668,000 | 21,924,000
Revolving Loans | 379,145,000 | 325,057,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | $ 918,712,000 | 1,186,118,000
Commercial and agricultural | Minimum |  |
Loan and Lease Financings |  |
Expected life of underlying collateral | 3 years |
Commercial and agricultural | Maximum |  |
Loan and Lease Financings |  |
Expected life of underlying collateral | 7 years |
Solar |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | $ 159,244,000 | 141,089,000
Financing receivable originated one year prior to current fiscal year | 43,211,000 | 90,435,000
Financing receivable originated two years prior to current fiscal year | 87,475,000 | 20,160,000
Financing receivable originated three years prior to current fiscal year | 19,703,000 | 36,909,000
Financing receivable originated four years prior to current fiscal year | 34,889,000 | 4,011,000
Financing receivable originated five years or more prior to current fiscal year | 3,780,000 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 348,302,000 | 292,604,000
Auto and light truck |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 341,933,000 | 268,045,000
Financing receivable originated one year prior to current fiscal year | 134,461,000 | 168,977,000
Financing receivable originated two years prior to current fiscal year | 80,047,000 | 65,545,000
Financing receivable originated three years prior to current fiscal year | 28,824,000 | 32,713,000
Financing receivable originated four years prior to current fiscal year | 16,690,000 | 6,460,000
Financing receivable originated five years or more prior to current fiscal year | 1,820,000 | 629,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | $ 603,775,000 | 542,369,000
Auto and light truck | Minimum |  |
Loan and Lease Financings |  |
Loan amortization period | 18 months |
Direct finance lease term | 3 years |
Auto and light truck | Maximum |  |
Loan and Lease Financings |  |
Loan amortization period | 4 years |
Direct finance lease term | 7 years |
Medium and heavy duty truck |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | $ 92,252,000 | 92,698,000
Financing receivable originated one year prior to current fiscal year | 68,354,000 | 89,292,000
Financing receivable originated two years prior to current fiscal year | 57,967,000 | 44,205,000
Financing receivable originated three years prior to current fiscal year | 23,210,000 | 31,773,000
Financing receivable originated four years prior to current fiscal year | 12,419,000 | 16,276,000
Financing receivable originated five years or more prior to current fiscal year | 5,538,000 | 4,928,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | $ 259,740,000 | 279,172,000
Medium and heavy duty truck | Minimum |  |
Loan and Lease Financings |  |
Period of amortization to reach equity position in collateral | 3 years |
Medium and heavy duty truck | Maximum |  |
Loan and Lease Financings |  |
Period of amortization to reach equity position in collateral | 4 years |
Aircraft |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | $ 386,036,000 | 440,802,000
Financing receivable originated one year prior to current fiscal year | 291,546,000 | 155,919,000
Financing receivable originated two years prior to current fiscal year | 85,916,000 | 93,521,000
Financing receivable originated three years prior to current fiscal year | 50,518,000 | 96,053,000
Financing receivable originated four years prior to current fiscal year | 47,479,000 | 46,159,000
Financing receivable originated five years or more prior to current fiscal year | 32,062,000 | 22,636,000
Revolving Loans | 4,844,000 | 6,370,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | $ 898,401,000 | 861,460,000
Aircraft | Minimum |  |
Loan and Lease Financings |  |
Loan amortization period | 10 years |
Aircraft | Maximum |  |
Loan and Lease Financings |  |
Loan amortization period | 15 years |
Construction equipment |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | $ 340,694,000 | 328,692,000
Financing receivable originated one year prior to current fiscal year | 209,741,000 | 194,293,000
Financing receivable originated two years prior to current fiscal year | 111,012,000 | 106,962,000
Financing receivable originated three years prior to current fiscal year | 48,490,000 | 43,111,000
Financing receivable originated four years prior to current fiscal year | 13,581,000 | 12,861,000
Financing receivable originated five years or more prior to current fiscal year | 5,031,000 | 5,807,000
Revolving Loans | 18,937,000 | 20,490,000
Revolving Loans Converted to Term | 6,787,000 | 2,672,000
Amortized cost of loans and leases | 754,273,000 | 714,888,000
Commercial real estate |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 230,919,000 | 200,243,000
Financing receivable originated one year prior to current fiscal year | 156,065,000 | 212,467,000
Financing receivable originated two years prior to current fiscal year | 153,533,000 | 179,020,000
Financing receivable originated three years prior to current fiscal year | 142,329,000 | 181,693,000
Financing receivable originated four years prior to current fiscal year | 132,850,000 | 70,784,000
Financing receivable originated five years or more prior to current fiscal year | 113,254,000 | 125,284,000
Revolving Loans | 391,000 | 373,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 929,341,000 | 969,864,000
Residential real estate and home equity |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 105,345,000 | 133,829,000
Financing receivable originated one year prior to current fiscal year | 114,682,000 | 65,690,000
Financing receivable originated two years prior to current fiscal year | 41,185,000 | 18,215,000
Financing receivable originated three years prior to current fiscal year | 9,719,000 | 22,943,000
Financing receivable originated four years prior to current fiscal year | 12,141,000 | 41,847,000
Financing receivable originated five years or more prior to current fiscal year | 90,301,000 | 87,541,000
Revolving Loans | 122,574,000 | 135,502,000
Revolving Loans Converted to Term | 4,643,000 | 5,812,000
Amortized cost of loans and leases | 500,590,000 | 511,379,000
Consumer |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 58,903,000 | 43,826,000
Financing receivable originated one year prior to current fiscal year | 24,414,000 | 34,508,000
Financing receivable originated two years prior to current fiscal year | 17,074,000 | 18,982,000
Financing receivable originated three years prior to current fiscal year | 8,314,000 | 7,041,000
Financing receivable originated four years prior to current fiscal year | 2,296,000 | 2,267,000
Financing receivable originated five years or more prior to current fiscal year | 701,000 | 795,000
Revolving Loans | 21,378,000 | 24,028,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | $ 133,080,000 | 131,447,000
Specialty vehicle | Minimum |  |
Loan and Lease Financings |  |
Loan amortization period | 6 years |
Specialty vehicle | Maximum |  |
Loan and Lease Financings |  |
Loan amortization period | 104 months |
Credit Quality Grades 1-6 | Commercial and agricultural |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | $ 233,512,000 | 525,816,000
Financing receivable originated one year prior to current fiscal year | 123,947,000 | 103,120,000
Financing receivable originated two years prior to current fiscal year | 60,744,000 | 114,251,000
Financing receivable originated three years prior to current fiscal year | 55,231,000 | 56,007,000
Financing receivable originated four years prior to current fiscal year | 32,545,000 | 22,023,000
Financing receivable originated five years or more prior to current fiscal year | 20,184,000 | 19,790,000
Revolving Loans | 364,460,000 | 291,990,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 890,623,000 | 1,132,997,000
Credit Quality Grades 1-6 | Solar |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 159,244,000 | 141,089,000
Financing receivable originated one year prior to current fiscal year | 42,073,000 | 90,435,000
Financing receivable originated two years prior to current fiscal year | 81,593,000 | 20,160,000
Financing receivable originated three years prior to current fiscal year | 18,979,000 | 36,909,000
Financing receivable originated four years prior to current fiscal year | 34,889,000 | 4,011,000
Financing receivable originated five years or more prior to current fiscal year | 3,780,000 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 340,558,000 | 292,604,000
Credit Quality Grades 1-6 | Auto and light truck |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 331,105,000 | 248,932,000
Financing receivable originated one year prior to current fiscal year | 122,709,000 | 141,841,000
Financing receivable originated two years prior to current fiscal year | 72,580,000 | 52,749,000
Financing receivable originated three years prior to current fiscal year | 24,965,000 | 24,101,000
Financing receivable originated four years prior to current fiscal year | 11,814,000 | 4,210,000
Financing receivable originated five years or more prior to current fiscal year | 901,000 | 608,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 564,074,000 | 472,441,000
Credit Quality Grades 1-6 | Medium and heavy duty truck |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 92,252,000 | 92,698,000
Financing receivable originated one year prior to current fiscal year | 68,354,000 | 88,314,000
Financing receivable originated two years prior to current fiscal year | 57,967,000 | 44,205,000
Financing receivable originated three years prior to current fiscal year | 23,210,000 | 31,773,000
Financing receivable originated four years prior to current fiscal year | 12,419,000 | 15,644,000
Financing receivable originated five years or more prior to current fiscal year | 5,265,000 | 4,840,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 259,467,000 | 277,474,000
Credit Quality Grades 1-6 | Aircraft |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 384,895,000 | 429,283,000
Financing receivable originated one year prior to current fiscal year | 290,897,000 | 153,358,000
Financing receivable originated two years prior to current fiscal year | 85,916,000 | 93,042,000
Financing receivable originated three years prior to current fiscal year | 45,848,000 | 95,457,000
Financing receivable originated four years prior to current fiscal year | 47,025,000 | 43,972,000
Financing receivable originated five years or more prior to current fiscal year | 29,435,000 | 20,966,000
Revolving Loans | 4,844,000 | 6,370,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 888,860,000 | 842,448,000
Credit Quality Grades 1-6 | Construction equipment |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 314,044,000 | 311,174,000
Financing receivable originated one year prior to current fiscal year | 201,032,000 | 180,550,000
Financing receivable originated two years prior to current fiscal year | 109,029,000 | 96,320,000
Financing receivable originated three years prior to current fiscal year | 47,693,000 | 42,713,000
Financing receivable originated four years prior to current fiscal year | 13,501,000 | 12,624,000
Financing receivable originated five years or more prior to current fiscal year | 5,031,000 | 5,722,000
Revolving Loans | 18,937,000 | 17,502,000
Revolving Loans Converted to Term | 4,594,000 | 737,000
Amortized cost of loans and leases | 713,861,000 | 667,342,000
Credit Quality Grades 1-6 | Commercial real estate |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 230,701,000 | 190,725,000
Financing receivable originated one year prior to current fiscal year | 150,144,000 | 204,477,000
Financing receivable originated two years prior to current fiscal year | 146,374,000 | 173,847,000
Financing receivable originated three years prior to current fiscal year | 141,838,000 | 175,009,000
Financing receivable originated four years prior to current fiscal year | 126,642,000 | 69,022,000
Financing receivable originated five years or more prior to current fiscal year | 112,243,000 | 122,762,000
Revolving Loans | 391,000 | 373,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 908,333,000 | 936,215,000
Credit Quality Grades 7-12 |  |
Loan and Lease Financings |  |
Threshold value of loan or lease for evaluation of the appropriateness of the impairment reserve | 250,000 |
Credit Quality Grades 7-12 | Commercial and agricultural |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 4,682,000 | 6,788,000
Financing receivable originated one year prior to current fiscal year | 194,000 | 1,699,000
Financing receivable originated two years prior to current fiscal year | 3,667,000 | 4,726,000
Financing receivable originated three years prior to current fiscal year | 2,373,000 | 3,507,000
Financing receivable originated four years prior to current fiscal year | 2,004,000 | 1,200,000
Financing receivable originated five years or more prior to current fiscal year | 484,000 | 2,134,000
Revolving Loans | 14,685,000 | 33,067,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 28,089,000 | 53,121,000
Credit Quality Grades 7-12 | Solar |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 0 | 0
Financing receivable originated one year prior to current fiscal year | 1,138,000 | 0
Financing receivable originated two years prior to current fiscal year | 5,882,000 | 0
Financing receivable originated three years prior to current fiscal year | 724,000 | 0
Financing receivable originated four years prior to current fiscal year | 0 | 0
Financing receivable originated five years or more prior to current fiscal year | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 7,744,000 | 0
Credit Quality Grades 7-12 | Auto and light truck |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 10,828,000 | 19,113,000
Financing receivable originated one year prior to current fiscal year | 11,752,000 | 27,136,000
Financing receivable originated two years prior to current fiscal year | 7,467,000 | 12,796,000
Financing receivable originated three years prior to current fiscal year | 3,859,000 | 8,612,000
Financing receivable originated four years prior to current fiscal year | 4,876,000 | 2,250,000
Financing receivable originated five years or more prior to current fiscal year | 919,000 | 21,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 39,701,000 | 69,928,000
Credit Quality Grades 7-12 | Medium and heavy duty truck |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 0 | 0
Financing receivable originated one year prior to current fiscal year | 0 | 978,000
Financing receivable originated two years prior to current fiscal year | 0 | 0
Financing receivable originated three years prior to current fiscal year | 0 | 0
Financing receivable originated four years prior to current fiscal year | 0 | 632,000
Financing receivable originated five years or more prior to current fiscal year | 273,000 | 88,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 273,000 | 1,698,000
Credit Quality Grades 7-12 | Aircraft |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 1,141,000 | 11,519,000
Financing receivable originated one year prior to current fiscal year | 649,000 | 2,561,000
Financing receivable originated two years prior to current fiscal year | 0 | 479,000
Financing receivable originated three years prior to current fiscal year | 4,670,000 | 596,000
Financing receivable originated four years prior to current fiscal year | 454,000 | 2,187,000
Financing receivable originated five years or more prior to current fiscal year | 2,627,000 | 1,670,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 9,541,000 | 19,012,000
Credit Quality Grades 7-12 | Construction equipment |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 26,650,000 | 17,518,000
Financing receivable originated one year prior to current fiscal year | 8,709,000 | 13,743,000
Financing receivable originated two years prior to current fiscal year | 1,983,000 | 10,642,000
Financing receivable originated three years prior to current fiscal year | 797,000 | 398,000
Financing receivable originated four years prior to current fiscal year | 80,000 | 237,000
Financing receivable originated five years or more prior to current fiscal year | 0 | 85,000
Revolving Loans | 0 | 2,988,000
Revolving Loans Converted to Term | 2,193,000 | 1,935,000
Amortized cost of loans and leases | 40,412,000 | 47,546,000
Credit Quality Grades 7-12 | Commercial real estate |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 218,000 | 9,518,000
Financing receivable originated one year prior to current fiscal year | 5,921,000 | 7,990,000
Financing receivable originated two years prior to current fiscal year | 7,159,000 | 5,173,000
Financing receivable originated three years prior to current fiscal year | 491,000 | 6,684,000
Financing receivable originated four years prior to current fiscal year | 6,208,000 | 1,762,000
Financing receivable originated five years or more prior to current fiscal year | 1,011,000 | 2,522,000
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 21,008,000 | 33,649,000
Performing | Residential real estate and home equity |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 105,345,000 | 133,829,000
Financing receivable originated one year prior to current fiscal year | 114,682,000 | 65,690,000
Financing receivable originated two years prior to current fiscal year | 41,185,000 | 18,194,000
Financing receivable originated three years prior to current fiscal year | 9,706,000 | 22,929,000
Financing receivable originated four years prior to current fiscal year | 11,720,000 | 41,847,000
Financing receivable originated five years or more prior to current fiscal year | 89,646,000 | 86,106,000
Revolving Loans | 122,281,000 | 135,255,000
Revolving Loans Converted to Term | 4,555,000 | 5,703,000
Amortized cost of loans and leases | 499,120,000 | 509,553,000
Performing | Consumer |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 58,866,000 | 43,824,000
Financing receivable originated one year prior to current fiscal year | 24,307,000 | 34,409,000
Financing receivable originated two years prior to current fiscal year | 17,031,000 | 18,904,000
Financing receivable originated three years prior to current fiscal year | 8,284,000 | 7,005,000
Financing receivable originated four years prior to current fiscal year | 2,263,000 | 2,259,000
Financing receivable originated five years or more prior to current fiscal year | 697,000 | 793,000
Revolving Loans | 21,378,000 | 23,869,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | 132,826,000 | 131,063,000
Nonperforming | Residential real estate and home equity |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 0 | 0
Financing receivable originated one year prior to current fiscal year | 0 | 0
Financing receivable originated two years prior to current fiscal year | 0 | 21,000
Financing receivable originated three years prior to current fiscal year | 13,000 | 14,000
Financing receivable originated four years prior to current fiscal year | 421,000 | 0
Financing receivable originated five years or more prior to current fiscal year | 655,000 | 1,435,000
Revolving Loans | 293,000 | 247,000
Revolving Loans Converted to Term | 88,000 | 109,000
Amortized cost of loans and leases | 1,470,000 | 1,826,000
Nonperforming | Consumer |  |
Loan and Lease Financings |  |
Financing receivable originated during current fiscal year | 37,000 | 2,000
Financing receivable originated one year prior to current fiscal year | 107,000 | 99,000
Financing receivable originated two years prior to current fiscal year | 43,000 | 78,000
Financing receivable originated three years prior to current fiscal year | 30,000 | 36,000
Financing receivable originated four years prior to current fiscal year | 33,000 | 8,000
Financing receivable originated five years or more prior to current fiscal year | 4,000 | 2,000
Revolving Loans | 0 | 159,000
Revolving Loans Converted to Term | 0 | 0
Amortized cost of loans and leases | $ 254,000 | $ 384,000

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