Goodwill And Intangible Assets (Intangible Assets Subject To Amortization) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Gross carrying value	$ 55,114	$ 51,858
Accumulated Amortization	27,036	22,891
Customer Relationships [Member]
Gross carrying value	40,166	40,166
Accumulated Amortization	21,138	18,648
Trade Name [Member]
Gross carrying value	11,560	9,442
Accumulated Amortization	2,782	2,023
Investment Banking Backlog [Member]
Gross carrying value	3,388	2,250
Accumulated Amortization	$ 3,116	$ 2,220