Goodwill And Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill, Beginning balance	$ 358,988
Goodwill, Net additions	60,405
Goodwill, Impairment losses
Goodwill, Ending balance	419,393	358,988
Intangible assets, Beginning balance	33,863
Intangible assets, Net additions
Intangible assets, Amortization	(4,896)	(5,311)	(5,518)
Intangible assets, Ending balance	28,967	33,863
Global Wealth Management [Member]
Goodwill, Beginning balance	143,828
Goodwill, Net additions	549
Goodwill, Impairment losses
Goodwill, Ending balance	144,377
Intangible assets, Beginning balance	18,819
Intangible assets, Net additions
Intangible assets, Amortization	(2,442)
Intangible assets, Ending balance	16,377
Institutional Group [Member]
Goodwill, Beginning balance	215,160
Goodwill, Net additions	59,856
Goodwill, Impairment losses
Goodwill, Ending balance	275,016
Intangible assets, Beginning balance	15,044
Intangible assets, Net additions
Intangible assets, Amortization	(2,454)
Intangible assets, Ending balance	$ 12,590