Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands			12 Months Ended
	Nov. 01, 2021	Sep. 03, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Goodwill and Intangible Assets [Line Items]
Amortization of intangible assets			$ 18,188	$ 19,620	$ 16,015
Customer Relationships [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets			10 years 1 month 6 days
Trade Names [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets			8 years 3 months 18 days
Core Deposits [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets			2 years 8 months 12 days
Non-Compete Agreements [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets			5 years 4 months 24 days
Investment Banking Backlog [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets			7 years 4 months 24 days
Acquired Technology [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets			8 months 12 days
Mooreland Partners [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Date of acquisition				Jul. 01, 2019
B&F Capital Markets, Inc. [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Date of acquisition		Sep. 03, 2019
Vining Sparks [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Date of acquisition	Nov. 01, 2021