Goodwill And Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 915,602
Goodwill, Adjustments			62,919
Goodwill, Impairment losses			(2,600)
Goodwill, Ending balance	$ 975,921		975,921
Intangible assets, Beginning balance			63,177
Intangible assets, Net Additions			40,019
Intangible assets, Amortization	(5,000)	$ (1,800)	(8,008)	$ (3,673)
Intangible assets, Ending balance	95,188		95,188
Global Wealth Management [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			269,384
Goodwill, Adjustments			(24,605)
Goodwill, Ending balance	244,779		244,779
Intangible assets, Beginning balance			27,964
Intangible assets, Net Additions			18,420
Intangible assets, Amortization			(3,904)
Intangible assets, Ending balance	42,480		42,480
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			646,218
Goodwill, Adjustments			87,524
Goodwill, Impairment losses			(2,600)
Goodwill, Ending balance	731,142		731,142
Intangible assets, Beginning balance			35,213
Intangible assets, Net Additions			21,599
Intangible assets, Amortization			(4,104)
Intangible assets, Ending balance	$ 52,708		$ 52,708