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Loans and Leases (Loans and Leases Outstanding) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Non-PCI loans | $ 22,908,140 | $ 22,833,827 |  |
PCI loans | 703,837 | 762,998 | $ 848,816 | $ 809,169
Total loans and leases | 23,611,977 | 23,596,825 |  |
Commercial |  |  |  |
Non-PCI loans | 14,871,562 | 14,799,054 |  |
PCI loans | 355,928 | 393,419 |  |
Commercial | Construction and land development |  |  |  |
Non-PCI loans | 738,413 | 669,215 |  |
PCI loans | 9,316 | 10,135 |  |
Commercial | Mortgage |  |  |  |
Non-PCI loans | 9,859,136 | 9,729,022 |  |
PCI loans | 325,073 | 358,103 |  |
Commercial | Other commercial real estate |  |  |  |
Non-PCI loans | 386,734 | 473,433 |  |
PCI loans | 16,179 | 17,124 |  |
Commercial | Commercial and industrial |  |  |  |
Non-PCI loans | 2,695,205 | 2,730,407 |  |
PCI loans | 3,732 | 6,374 |  |
Commercial | Lease financing |  |  |  |
Non-PCI loans | 910,589 | 894,801 |  |
Commercial | Other |  |  |  |
Non-PCI loans | 281,485 | 302,176 |  |
PCI loans | 1,628 | 1,683 |  |
Noncommercial |  |  |  |
Non-PCI loans | 8,036,578 | 8,034,773 |  |
PCI loans | 347,909 | 369,579 |  |
Noncommercial | Construction and land development |  |  |  |
Non-PCI loans | 243,114 | 248,289 |  |
PCI loans | 3,006 | 4,163 |  |
Noncommercial | Mortgage |  |  |  |
Non-PCI loans | 3,587,791 | 3,523,786 |  |
PCI loans | 282,338 | 299,318 |  |
Noncommercial | Revolving mortgage |  |  |  |
Non-PCI loans | 2,651,648 | 2,701,525 |  |
PCI loans | 60,388 | 63,908 |  |
Noncommercial | Consumer |  |  |  |
Non-PCI loans | 1,554,025 | 1,561,173 |  |
PCI loans | $ 2,177 | $ 2,190 |  |

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- Definition This category includes all loans, excluding purchased credit-impaired loans that are accounted for in accordance with ASC 310-30. These loans are accounted for in accordance with ASC 310-20. + References No definition available. + Details
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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and other-than-temporary impairments), for loans accounted for as debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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