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v3.20.4

Business Segment Information (Schedule Of Additional Information Pertaining To Business Segments) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | $ 78,567 | $ 77,171 | $ 73,316
Depreciation | 30,959 | 29,436 | 28,792
Amortization | 52,975 | 51,419 | 48,895
Assets | 2,167,256 | 2,151,370 |
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 75,727 | 74,857 | 71,809
Depreciation | 29,918 | 28,130 | 27,587
Amortization | 52,745 | 51,189 | 48,664
Assets | 1,290,041 | 1,242,085 |
Operating Segments | Private Banks |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 29,061 | 33,068 | 36,763
Depreciation | 16,206 | 14,349 | 13,773
Amortization | 30,240 | 29,054 | 27,312
Assets | 557,953 | 567,796 |
Operating Segments | Investment Advisors |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 15,588 | 17,413 | 16,572
Depreciation | 4,821 | 4,653 | 4,607
Amortization | 10,694 | 10,311 | 9,668
Assets | 169,197 | 165,556 |
Operating Segments | Institutional Investors |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 3,958 | 4,057 | 3,863
Depreciation | 1,214 | 1,600 | 1,672
Amortization | 1,707 | 1,726 | 1,707
Assets | 119,784 | 115,012 |
Operating Segments | Investment Managers |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 25,909 | 18,970 | 13,639
Depreciation | 7,336 | 7,145 | 6,988
Amortization | 9,365 | 9,358 | 9,382
Assets | 421,093 | 373,986 |
Operating Segments | Investments In New Businesses |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 1,211 | 1,349 | 972
Depreciation | 341 | 383 | 547
Amortization | 739 | 740 | 595
Assets | 22,014 | 19,735 |
Corporate Overhead |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | 2,840 | 2,314 | 1,507
Depreciation | 1,041 | 1,306 | 1,205
Amortization | 230 | 230 | $ 231
Assets | $ 877,215 | $ 909,285 |

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