Goodwill And Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Goodwill, Beginning balance			$ 358,988
Goodwill, Net additions			2,747
Goodwill, Impairment losses
Goodwill, Ending balance	361,735		361,735
Intangible assets, Beginning balance			33,863
Intangible assets, Net additions
Intangible assets, Amortization	(1,200)	(1,300)	(2,521)	(2,377)
Intangible assets, Ending balance	31,342		31,342
Global Wealth Management [Member]
Goodwill, Beginning balance			143,828
Goodwill, Net additions			549
Goodwill, Impairment losses
Goodwill, Ending balance	144,377		144,377
Intangible assets, Beginning balance			18,819
Intangible assets, Net additions
Intangible assets, Amortization			(1,234)
Intangible assets, Ending balance	17,585		17,585
Institutional Group [Member]
Goodwill, Beginning balance			215,160
Goodwill, Net additions			2,198
Goodwill, Impairment losses
Goodwill, Ending balance	217,358		217,358
Intangible assets, Beginning balance			15,044
Intangible assets, Net additions
Intangible assets, Amortization			(1,287)
Intangible assets, Ending balance	$ 13,757		$ 13,757