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Income (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Net investment income (1) |  | $ 275.7 | [1] | $ 188.1 | $ 147.5
General and administrative expenses |  | 354.5 |  | 386.5 | 333.1
Realized and unrealized investment losses | [2] | 61.4 |  | 182.6 | 47.4
Asset Management Arrangement |  |  |  |  |
Net investment income (1) |  | 9.4 |  | 4.9 | 5.8
Management Consulting Agreement |  |  |  |  |
General and administrative expenses |  | 5.0 |  | 5.0 | 5.0
Apollo, Class A & B Notes |  |  |  |  |
Realized and unrealized investment losses |  | 8.7 |  | (0.4) | 0.0
Management Consulting Agreement |  |  |  |  |
Net investment income (1) |  | $ (19.6) |  | $ (3.1) | $ 0.0
[1] | Net investment income includes related party net investment income of $19.6 million (2022 — $3.1 million, 2021 — $Nil ) and related party investment management fees of $9.4 million (2022 — $4.9 million, 2021 — $5.8 million).
[2] | Realized and unrealized investments gains includes gains of $8.7 million on related party investments (2022 — $0.4 million loss, 2021 — $Nil ).

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