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