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Loans and Leases (Loans and Leases Outstanding) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loans and leases, not acquired in a transfer accounted for as debt securities | $ 32,329,093 | $ 28,322,780
PCI Loans | 462,882 | 558,716
Total loans and leases | 32,791,975 | 28,881,496
Commercial |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 22,558,060 | 18,552,002
Commercial | Construction and land development |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 985,424 | 1,013,454
Commercial | Mortgage |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 12,282,635
Commercial | Commercial and industrial |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 5,013,644 | 4,403,792
Commercial | Other commercial real estate |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 542,028
Commercial | Other |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 310,093
Commercial | Mortgage Receivable, Owner Occupied |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 11,165,012 |
Commercial | Mortgage Receivable, Non-Owner Occupied |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 2,987,689 |
Commercial | SBA-PPP |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 2,406,291 |
Noncommercial |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 9,770,778
Noncommercial | Construction and land development |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 357,385
Noncommercial | Mortgage |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 5,293,917
Noncommercial | Revolving mortgage |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | 2,339,072
Noncommercial | Consumer |  |
Loans and leases, not acquired in a transfer accounted for as debt securities |  | $ 1,780,404
Consumer Portfolio Segment |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 9,771,033 |
Consumer Portfolio Segment | Construction and land development |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 348,123 |
Consumer Portfolio Segment | Residential Mortgage |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 5,561,686 |
Consumer Portfolio Segment | Revolving Mortgage |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 2,052,854 |
Consumer Portfolio Segment | Consumer Auto Loan |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | 1,255,402 |
Consumer Portfolio Segment | Consumer Loan, Other |  |
Loans and leases, not acquired in a transfer accounted for as debt securities | $ 552,968 |

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- Definition All loans and leases, excluding purchased-credit impaired loans accounted for under ASC 310-30. + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121614798&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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