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Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |
Goodwill, Beginning balance |  |  | $ 1,306,892 |
Goodwill, Adjustments |  |  | 13,071 |
Goodwill, Ending balance | $ 1,319,963 |  | 1,319,963 |
Intangible assets, Beginning balance |  |  | 148,157 |
Intangible assets, Adjustments |  |  | 1,378 |
Intangible assets, Amortization | (4,400) | $ (4,500) | (14,966) | $ (13,216)
Intangible assets, Ending balance | 134,569 |  | 134,569 |
Global Wealth Management [Member] |  |  |  |
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |
Goodwill, Beginning balance |  |  | 335,009 |
Goodwill, Ending balance | 335,009 |  | 335,009 |
Intangible assets, Beginning balance |  |  | 38,884 |
Intangible assets, Amortization |  |  | (4,088) |
Intangible assets, Ending balance | 34,796 |  | 34,796 |
Institutional Group [Member] |  |  |  |
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |
Goodwill, Beginning balance |  |  | 971,883 |
Goodwill, Adjustments |  |  | 13,071 |
Goodwill, Ending balance | 984,954 |  | 984,954 |
Intangible assets, Beginning balance |  |  | 109,273 |
Intangible assets, Adjustments |  |  | 1,378 |
Intangible assets, Amortization |  |  | (10,878) |
Intangible assets, Ending balance | $ 99,773 |  | $ 99,773 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e961-128460 + Details
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