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Investments - Gains and Losses Recognized in Gain (Loss) on Securities, Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
(Loss) Gain on Securities [Line Items] |  |  |  |
Gain (Loss) on Securities, net | $ 5,852 | $ (586) | $ 3,840 | $ 1,670
Investments—Consolidated Investment Companies |  |  |  |
(Loss) Gain on Securities [Line Items] |  |  |  |
Unrealized Gains (Losses) | 4,451 | (364) | 3,987 | 1,345
Net Realized Gains (Losses) | (47) | (119) | (1,151) | (786)
Gain (Loss) on Securities, net | 4,404 | (483) | 2,836 | 559
Investments—Affiliates and Other |  |  |  |
(Loss) Gain on Securities [Line Items] |  |  |  |
Unrealized Gains (Losses) | 1,816 | 2,298 | 1,410 | 3,515
Net Realized Gains (Losses) | (368) | (2,401) | (406) | (2,404)
Gain (Loss) on Securities, net | $ 1,448 | $ (103) | $ 1,004 | $ 1,111

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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Amount of unrealized gain (loss) on investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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