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Loans and Leases - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, net of unearned income | $ 59,706,531 | $ 31,061,111
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, net of unearned income | 33,655,717 | 20,051,091
Commercial, Financial, and Industrial (a) | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 7,989,617 |
2019 | 5,957,318 |
2018 | 3,199,379 |
2017 | 1,991,389 |
2016 | 1,428,958 |
Prior to 2016 | 2,542,229 |
Non-Revolving Loans | 5,607,068 |
Revolving Loans | 4,821,796 |
Revolving Loans converted to term loans | 117,963 |
Total loans, net of unearned income | 28,048,649 | 15,640,208
Financing Receivable, Revolving, Converted to Term Loan During Period | 40,000 |
Commercial, Financial, and Industrial (a) | PD Grade 1 -12 | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 7,795,816 |
2019 | 5,770,378 |
2018 | 3,036,673 |
2017 | 1,917,886 |
2016 | 1,323,236 |
Prior to 2016 | 2,414,920 |
Non-Revolving Loans | 5,607,068 |
Revolving Loans | 4,533,240 |
Revolving Loans converted to term loans | 60,592 |
Total loans, net of unearned income | 32,459,809 |
Commercial, Financial, and Industrial (a) | PD Grade 13 | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 86,675 |
2019 | 75,224 |
2018 | 53,067 |
2017 | 22,692 |
2016 | 45,640 |
Prior to 2016 | 80,438 |
Non-Revolving Loans | 0 |
Revolving Loans | 123,383 |
Revolving Loans converted to term loans | 47,364 |
Total loans, net of unearned income | 534,483 |
Commercial, Financial, and Industrial (a) | PD Grade 14 15 16 | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 107,126 |
2019 | 111,716 |
2018 | 109,639 |
2017 | 50,811 |
2016 | 60,082 |
Prior to 2016 | 46,871 |
Non-Revolving Loans | 0 |
Revolving Loans | 165,173 |
Revolving Loans converted to term loans | 10,007 |
Total loans, net of unearned income | 661,425 |
Commercial real estate | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, net of unearned income | 12,510,887 | 4,337,017
Commercial real estate | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 2,114,932 |
2019 | 3,278,452 |
2018 | 2,059,080 |
2017 | 1,486,788 |
2016 | 1,147,528 |
Prior to 2016 | 2,093,125 |
Revolving Loans | 312,146 |
Revolving Loans converted to term loans | 18,836 |
Total loans, net of unearned income | 12,510,887 | $ 4,332,042
Commercial real estate | PD Grade 1 -12 | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 2,099,167 |
2019 | 3,244,741 |
2018 | 1,940,046 |
2017 | 1,410,004 |
2016 | 1,056,094 |
Prior to 2016 | 2,015,504 |
Revolving Loans | 300,752 |
Revolving Loans converted to term loans | 18,836 |
Total loans, net of unearned income | 12,085,144 |
Commercial real estate | PD Grade 13 | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 15,089 |
2019 | 31,230 |
2018 | 97,016 |
2017 | 35,573 |
2016 | 83,254 |
Prior to 2016 | 45,875 |
Revolving Loans | 4,065 |
Revolving Loans converted to term loans | 0 |
Total loans, net of unearned income | 312,102 |
Commercial real estate | PD Grade 14 15 16 | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
2020 | 676 |
2019 | 2,481 |
2018 | 22,018 |
2017 | 41,211 |
2016 | 8,180 |
Prior to 2016 | 31,746 |
Revolving Loans | 7,329 |
Revolving Loans converted to term loans | 0 |
Total loans, net of unearned income | $ 113,641 |

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