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Business Segment Information (Schedule Of Additional Information Pertaining To Business Segments) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2012
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Jun. 30, 2011
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | $ 13,165 | $ 9,487 | $ 34,558 | $ 27,510 |
| Depreciation | 5,630 | 5,391 | 11,062 | 11,002 |
| Amortization | 7,407 | 6,792 | 15,029 | 13,023 |
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Private Banks [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 8,180 | 6,783 | 20,022 | 17,813 |
| Depreciation | 3,704 | 3,962 | 7,432 | 8,000 |
| Amortization | 4,794 | 4,608 | 9,479 | 8,837 |
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Investment Advisors [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 2,805 | 2,296 | 6,946 | 6,038 |
| Depreciation | 492 | 556 | 986 | 1,147 |
| Amortization | 1,757 | 1,551 | 3,473 | 2,969 |
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Institutional Investors [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 636 | 251 | 1,867 | 1,132 |
| Depreciation | 251 | 268 | 513 | 560 |
| Amortization | 302 | 196 | 604 | 363 |
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Investment Managers [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 1,110 | 89 | 4,163 | 1,873 |
| Depreciation | 492 | 435 | 968 | 938 |
| Amortization | 201 | 131 | 402 | 246 |
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Investments In New Businesses [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 148 | 92 | 420 | 304 |
| Depreciation | 490 | 29 | 824 | 59 |
| Amortization | 296 | 65 | 573 | 124 |
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Total From Business Segments [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 12,879 | 9,511 | 33,418 | 27,160 |
| Depreciation | 5,429 | 5,250 | 10,723 | 10,704 |
| Amortization | 7,350 | 6,551 | 14,531 | 12,539 |
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Corporate Overhead [Member]
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| Segment Reporting Information [Line Items] | ||||
| Capital Expenditures | 286 | (24) | 1,140 | 350 |
| Depreciation | 201 | 141 | 339 | 298 |
| Amortization | $ 57 | $ 241 | $ 498 | $ 484 |