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Loans and Allowance for Loan Losses (Schedule of Allowances for Loan Losses and Recorded Investment in Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Allowance for loan losses: |  |  |  |
Beginning balance | $ 516,708 | $ 588,648 | $ 605,736 | $ 281,402
Charge-offs | (29,881) | (35,346) | (86,059) | (89,999)
Recoveries | 9,365 | 6,880 | 18,793 | 17,426
(Reversal of) provision for loan losses | (3,949) | 43,618 | (46,227) | 311,977
Ending balance | 492,243 | 603,800 | 492,243 | 603,800
Impact from Adoption |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | 82,994
Adjusted balance |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | 364,396
Commercial & Industrial |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 254,938 | 229,915 | 229,555 | 145,782
Charge-offs | (20,230) | (19,367) | (48,374) | (57,497)
Recoveries | 1,760 | 3,796 | 6,027 | 8,798
(Reversal of) provision for loan losses | (5,961) | 46,256 | 43,299 | 165,827
Ending balance | 230,507 | 260,600 | 230,507 | 260,600
Commercial & Industrial | Impact from Adoption |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | (2,310)
Commercial & Industrial | Adjusted balance |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | 143,472
Commercial Real Estate |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 92,113 | 171,526 | 130,742 | 67,430
Charge-offs | (718) | (6,878) | (14,877) | (8,585)
Recoveries | 4,535 | 1,225 | 5,938 | 2,160
(Reversal of) provision for loan losses | (4,278) | (22,068) | (30,151) | 83,451
Ending balance | 91,652 | 143,805 | 91,652 | 143,805
Commercial Real Estate | Impact from Adoption |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | (651)
Commercial Real Estate | Adjusted balance |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | 66,779
Consumer |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance | 169,657 | 187,207 | 245,439 | 68,190
Charge-offs | (8,933) | (9,101) | (22,808) | (23,917)
Recoveries | 3,070 | 1,859 | 6,828 | 6,468
(Reversal of) provision for loan losses | 6,290 | 19,430 | (59,375) | 62,699
Ending balance | $ 170,084 | $ 199,395 | $ 170,084 | 199,395
Consumer | Impact from Adoption |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | 85,955
Consumer | Adjusted balance |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning balance |  |  |  | $ 154,145

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