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Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 279,432 | $ 279,199
Accumulated Amortization | 144,863 | 131,042
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 226,133 | 225,900
Accumulated Amortization | 105,555 | 97,054
Trade Names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 30,359 | 30,359
Accumulated Amortization | 20,311 | 17,694
Non-Compete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 9,240 | 9,240
Accumulated Amortization | 6,840 | 5,684
Core Deposits [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 8,615 | 8,615
Accumulated Amortization | 7,145 | 6,277
Investment Banking Backlog [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 4,245 | 4,245
Accumulated Amortization | 4,172 | 3,680
Acquired Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 840 | 840
Accumulated Amortization | $ 840 | $ 653

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