Goodwill And Intangible Assets (Intangible Assets Subject To Amortization) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	$ 118,440	$ 99,403
Accumulated Amortization	57,381	47,123
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	78,580	63,661
Accumulated Amortization	37,322	29,636
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	24,456	21,423
Accumulated Amortization	6,969	5,322
Investment Banking Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	7,440	7,388
Accumulated Amortization	7,388	7,388
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	5,447	5,447
Accumulated Amortization	5,447	4,657
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	2,517	1,484
Accumulated Amortization	$ 255	$ 120