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Allowance for Credit Losses (Collateral Dependent Loans and Leases) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | $ 37,441,951 | $ 26,155,981
Commercial Real Estate Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 19,454,480 | 13,026,576
Commercial Real Estate Portfolio Segment | Non-owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 6,482,940 | 3,894,840
Commercial Real Estate Portfolio Segment | Owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 5,195,605 | 2,567,761
Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 9,696,404 | 5,695,773
Commercial Portfolio Segment | Term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 5,536,765 | 3,029,547
Commercial Portfolio Segment | Lines of credit & other, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,430,127 | 960,054
Commercial Portfolio Segment | Leases & equipment finance, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1,729,512 | 1,706,172
Residential Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 8,095,332 | 7,279,000
Residential Portfolio Segment | Mortgage, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 6,157,166 | 5,647,035
Residential Portfolio Segment | Home equity loans & lines, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1,938,166 | $ 1,631,965
Residential Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 58,121 |
Residential Real Estate | Commercial Real Estate Portfolio Segment | Non-owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Residential Real Estate | Commercial Real Estate Portfolio Segment | Owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Residential Real Estate | Commercial Portfolio Segment | Term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Residential Real Estate | Commercial Portfolio Segment | Lines of credit & other, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Residential Real Estate | Commercial Portfolio Segment | Leases & equipment finance, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Residential Real Estate | Residential Portfolio Segment | Mortgage, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 55,381 |
Residential Real Estate | Residential Portfolio Segment | Home equity loans & lines, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,740 |
Commercial Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 28,163 |
Commercial Real Estate | Commercial Real Estate Portfolio Segment | Non-owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 4,250 |
Commercial Real Estate | Commercial Real Estate Portfolio Segment | Owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 22,076 |
Commercial Real Estate | Commercial Portfolio Segment | Term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 271 |
Commercial Real Estate | Commercial Portfolio Segment | Lines of credit & other, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1,566 |
Commercial Real Estate | Commercial Portfolio Segment | Leases & equipment finance, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Commercial Real Estate | Residential Portfolio Segment | Mortgage, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Commercial Real Estate | Residential Portfolio Segment | Home equity loans & lines, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
General Business Assets |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 37,005 |
General Business Assets | Commercial Real Estate Portfolio Segment | Non-owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
General Business Assets | Commercial Real Estate Portfolio Segment | Owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
General Business Assets | Commercial Portfolio Segment | Term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 8,602 |
General Business Assets | Commercial Portfolio Segment | Lines of credit & other, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
General Business Assets | Commercial Portfolio Segment | Leases & equipment finance, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 28,403 |
General Business Assets | Residential Portfolio Segment | Mortgage, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
General Business Assets | Residential Portfolio Segment | Home equity loans & lines, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 301 |
Other | Commercial Real Estate Portfolio Segment | Non-owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Other | Commercial Real Estate Portfolio Segment | Owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Other | Commercial Portfolio Segment | Term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 301 |
Other | Commercial Portfolio Segment | Lines of credit & other, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Other | Commercial Portfolio Segment | Leases & equipment finance, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Other | Residential Portfolio Segment | Mortgage, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Other | Residential Portfolio Segment | Home equity loans & lines, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Total |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 123,590 |
Total | Commercial Real Estate Portfolio Segment | Non-owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 4,250 |
Total | Commercial Real Estate Portfolio Segment | Owner occupied term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 22,076 |
Total | Commercial Portfolio Segment | Term, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 9,174 |
Total | Commercial Portfolio Segment | Lines of credit & other, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1,566 |
Total | Commercial Portfolio Segment | Leases & equipment finance, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 28,403 |
Total | Residential Portfolio Segment | Mortgage, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 55,381 |
Total | Residential Portfolio Segment | Home equity loans & lines, net |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | $ 2,740 |

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