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v3.24.3

Investment Securities - Common Equity Securities and Other Long Term Investments (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Common equity securities |  |
Cost or Amortized Cost | $ 537.0 | $ 483.5
Gross Unrealized Gains | 120.2 | 62.3
Gross Unrealized Losses | 0.0 | (1.2)
Net Foreign Currency Gains (Losses) | (1.8) | (6.2)
Carrying Value | 655.4 | 538.4
Other long-term investments |  |
Cost or Amortized Cost | 1,638.6 | 1,655.7
Gross Unrealized Gains | 547.9 | 446.3
Other Long-Term Investments, Unrealized Loss | (108.3) | (94.5)
Net Foreign Currency Gains (Losses) | (7.1) | (9.3)
Carrying Value | 2,071.1 | 1,998.2
MediaAlpha |  |
Investment in MediaAlpha |  |
Cost or Amortized Cost | 59.2 | 59.2
Gross Unrealized Gains | 264.2 | 195.7
Gross Unrealized Losses | 0.0 | 0.0
Net Foreign Currency Gains (Losses) | 0.0 | 0.0
Carrying Value | $ 323.4 | $ 254.9

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