Loan and Lease Financings (Details)
|
3 Months Ended |
|
|
Mar. 31, 2016
USD ($)
item
|
Dec. 31, 2015
USD ($)
|
| Receivables [Abstract] |
|
|
| Number of methods to assess credit risk | item |
2
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
$ 4,031,975,000
|
$ 3,994,692,000
|
| Loan and lease financings excluding residential real estate and consumer loans |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
3,418,632,000
|
3,382,084,000
|
| Commercial and agricultural |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
749,024,000
|
744,749,000
|
| Auto and light truck |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
428,455,000
|
425,236,000
|
| Medium and heavy duty truck |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
272,917,000
|
278,254,000
|
| Aircraft financing |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
783,844,000
|
778,012,000
|
| Construction equipment financing |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
467,782,000
|
455,565,000
|
| Commercial real estate |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
716,610,000
|
700,268,000
|
| Credit Quality Grades 1-6 | Loan and lease financings excluding residential real estate and consumer loans |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
3,317,782,000
|
3,278,484,000
|
| Credit Quality Grades 1-6 | Commercial and agricultural |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
719,127,000
|
710,030,000
|
| Credit Quality Grades 1-6 | Auto and light truck |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
414,418,000
|
413,836,000
|
| Credit Quality Grades 1-6 | Medium and heavy duty truck |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
270,829,000
|
275,367,000
|
| Credit Quality Grades 1-6 | Aircraft financing |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
751,761,000
|
750,264,000
|
| Credit Quality Grades 1-6 | Construction equipment financing |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
463,858,000
|
448,683,000
|
| Credit Quality Grades 1-6 | Commercial real estate |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
697,789,000
|
680,304,000
|
| Credit Quality Grades 7-12 |
|
|
| Loan and Lease Financings |
|
|
| Relationships reviewed quarterly as part of management's evaluation of the appropriateness of the reserve for loan and lease losses |
100,000
|
|
| Credit Quality Grades 7-12 | Loan and lease financings excluding residential real estate and consumer loans |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
100,850,000
|
103,600,000
|
| Credit Quality Grades 7-12 | Commercial and agricultural |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
29,897,000
|
34,719,000
|
| Credit Quality Grades 7-12 | Auto and light truck |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
14,037,000
|
11,400,000
|
| Credit Quality Grades 7-12 | Medium and heavy duty truck |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
2,088,000
|
2,887,000
|
| Credit Quality Grades 7-12 | Aircraft financing |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
32,083,000
|
27,748,000
|
| Credit Quality Grades 7-12 | Construction equipment financing |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
3,924,000
|
6,882,000
|
| Credit Quality Grades 7-12 | Commercial real estate |
|
|
| Loan and Lease Financings |
|
|
| Recorded investment in loans and leases |
$ 18,821,000
|
$ 19,964,000
|