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Revenues (Tables) | 9 Months Ended
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Sep. 30, 2022
Revenue from Contract with Customer [Abstract] |
Investment Management Fees by Source | The following table summarizes investment management fees by source:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in thousands) | 2022 |  | 2021 |  | 2022 |  | 2021
Investment management fees |  |  |  |  |  |  |
Open-end funds | $ | 80,234 |  |  | $ | 99,711 |  |  | $ | 262,486 |  |  | $ | 286,104 |
Closed-end funds | 15,773 |  |  | 17,116 |  |  | 48,887 |  |  | 46,451 |
Retail separate accounts | 39,154 |  |  | 46,625 |  |  | 134,069 |  |  | 126,612 |
Institutional accounts | 37,689 |  |  | 37,681 |  |  | 119,249 |  |  | 108,745 |
Total investment management fees | $ | 172,850 |  |  | $ | 201,133 |  |  | $ | 564,691 |  |  | $ | 567,912 |

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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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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