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Revenues (Tables) | 6 Months Ended
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Jun. 30, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table summarizes revenue by source:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) | 2020 |  | 2019 |  | 2020 |  | 2019
Investment management fees |  |  |  |  |  |  |
Open-end funds | $ | 54,018 |  |  | $ | 56,973 |  |  | $ | 113,126 |  |  | $ | 110,266 |
Closed-end funds | 8,557 |  |  | 10,620 |  |  | 18,736 |  |  | 20,639 |
Retail separate accounts | 22,398 |  |  | 20,664 |  |  | 48,112 |  |  | 38,669 |
Institutional accounts | 24,606 |  |  | 23,656 |  |  | 47,523 |  |  | 45,833 |
Structured products | 417 |  |  | 1,585 |  |  | 1,991 |  |  | 3,232 |
Other products | 554 |  |  | 1,093 |  |  | 1,350 |  |  | 1,870 |
Total investment management fees | 110,550 |  |  | 114,591 |  |  | 230,838 |  |  | 220,509 |
Distribution and service fees | 8,889 |  |  | 10,617 |  |  | 18,349 |  |  | 20,680 |
Administration and shareholder service fees | 13,289 |  |  | 15,054 |  |  | 27,942 |  |  | 29,467 |
Other income and fees | 166 |  |  | 227 |  |  | 331 |  |  | 551 |
Total revenues | $ | 132,894 |  |  | $ | 140,489 |  |  | $ | 277,460 |  |  | $ | 271,207 |

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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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