Goodwill And Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Goodwill, Beginning balance	$ 419,393
Goodwill, Net additions	323,261
Goodwill, Impairment losses
Goodwill, Ending balance	742,654
Intangible assets, Beginning balance	28,967
Intangible assets, Net additions	3,256
Intangible assets, Amortization	(4,145)	(3,713)
Intangible assets, Ending balance	28,078
Global Wealth Management [Member]
Goodwill, Beginning balance	144,377
Goodwill, Net additions	10,868
Goodwill, Impairment losses
Goodwill, Ending balance	155,245
Intangible assets, Beginning balance	16,377
Intangible assets, Net additions
Intangible assets, Amortization	(1,697)
Intangible assets, Ending balance	14,680
Institutional Group [Member]
Goodwill, Beginning balance	275,016
Goodwill, Net additions	312,393
Goodwill, Impairment losses
Goodwill, Ending balance	587,409
Intangible assets, Beginning balance	12,590
Intangible assets, Net additions	3,256
Intangible assets, Amortization	(2,448)
Intangible assets, Ending balance	$ 13,398