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Revenues (Tables) | 9 Months Ended
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Sep. 30, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table summarizes revenue by source:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in thousands) | 2020 |  | 2019 |  | 2020 |  | 2019
Investment management fees |  |  |  |  |  |  |
Open-end funds | $ | 63,458 |  |  | $ | 59,060 |  |  | $ | 176,584 |  |  | $ | 169,326 |
Closed-end funds | 8,959 |  |  | 10,846 |  |  | 27,695 |  |  | 31,485 |
Retail separate accounts | 26,412 |  |  | 22,092 |  |  | 74,524 |  |  | 60,761 |
Institutional accounts | 29,048 |  |  | 25,180 |  |  | 76,571 |  |  | 71,013 |
Structured products | 1,297 |  |  | 1,725 |  |  | 3,288 |  |  | 4,957 |
Other products | 611 |  |  | 1,120 |  |  | 1,961 |  |  | 2,990 |
Total investment management fees | 129,785 |  |  | 120,023 |  |  | 360,623 |  |  | 340,532 |
Distribution and service fees | 9,797 |  |  | 10,442 |  |  | 28,146 |  |  | 31,122 |
Administration and shareholder service fees | 15,114 |  |  | 15,280 |  |  | 43,056 |  |  | 44,747 |
Other income and fees | 94 |  |  | 210 |  |  | 425 |  |  | 761 |
Total revenues | $ | 154,790 |  |  | $ | 145,955 |  |  | $ | 432,250 |  |  | $ | 417,162 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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