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Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Total assets | $ 19,135,892 | $ 19,129,356
Global Wealth Management [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 16,312,565 | 16,065,503
Institutional Group [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 2,448,583 | 2,657,183
Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | $ 374,744 | $ 406,670

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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