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Net investment income (loss) - by Type (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Other investment income (expenses) |  |  |  |  |  |  |  |  | $ (1,021) | $ (954) | $ 903
Net investment income on derivative contracts |  |  |  |  |  |  |  |  | 0 | 0 | 644
Net investment income (loss) on cash, including foreign exchange gain (loss) |  |  |  |  |  |  |  |  | 12,298 | 24,676 | (14,885)
Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase |  |  |  |  |  |  |  |  | 0 | 0 | (238)
Withholding Taxes Transferred to Income Tax Expense |  |  |  |  |  |  |  |  | 0 | 0 | 6,325
Total other investment income and other expenses |  |  |  |  |  |  |  |  | 11,277 | 23,722 | (7,251)
Management and performance fees to related parties (1) |  |  |  |  |  |  |  |  | 0 | 0 | (29,845)
Net investment loss from investment in related party investment fund |  |  |  |  |  |  |  |  | 194,988 | 249,626 | (280,847)
Net investment income (loss) | $ 204,798 | $ 121,956 | $ 137,211 | $ (185,027) | $ 61,614 | $ (3,138) | $ 69,131 | $ 154,953 | 278,938 | 282,560 | (251,433)
Net investment income (loss) by asset type |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 72,091 | 9,212 | 79,672
Net investment income (loss) by asset type | Real estate |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (186)
Net investment income (loss) by asset type | Total other investments |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (16,055)
Net investment income (loss) by asset type | Net investment loss in funds valued at NAV, excluding TP Fund |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | (6) | (723)
Net investment income (loss) by asset type | Options |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (15,527)
Net investment income (loss) by asset type | Rights and warrants |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | 238
Net investment income (loss) by asset type | Trade claims |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (580)
Net investment income (loss) by asset type | Total equities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | 67,565
Net investment income (loss) by asset type | Equity securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | 70,646
Net investment income (loss) by asset type | Private Common Equity Securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (401)
Net investment income (loss) by asset type | Private preferred equity securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (2,680)
Net investment income (loss) by asset type | Total debt securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 72,091 | 9,218 | 28,885
Net investment income (loss) by asset type | Asset-backed securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 34,601 | 0 | 20,714
Net investment income (loss) by asset type | Bank debt |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 376 | 0 | 5,326
Net investment income (loss) by asset type | Corporate bonds |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 34,522 | 0 | (2,958)
Net investment income (loss) by asset type | Municipal bonds |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | 9,990
Net investment income (loss) by asset type | U.S. Treasury securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 2,430 | 8,703 | 2,787
Net investment income (loss) by asset type | Sovereign debt |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 162 | 515 | (7,380)
Net investment income (loss) by asset type | Other debt securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | 406
Net investment income (loss) by liability type | Options |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | 21,697
Net investment income (loss) by liability type | Total equities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 582 | 0 | (13,162)
Net investment income (loss) by liability type | Equity securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (32,407)
Net investment income (loss) by liability type | Corporate bonds |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | 0 | 0 | (2,452)
Net investment income (loss) by liability type | U.S. Treasury securities |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  |  |  |
Investment Income, Net |  |  |  |  |  |  |  |  | $ 582 | $ 0 | $ 0

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- Definition The net income earned from investments in securities and other investments including derivatives. It includes dividends from shares in corporations, and interest from bonds, loans, mortgages, derivatives, commercial paper, bank accounts, certificates of deposits, treasuries, and other financial securities. It also includes realized and unrealized gains and losses on all investments. + References No definition available. + Details
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