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Cash and Marketable Securities - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash and Cash Equivalents [Line Items] |  |  |
Unrealized net gain (loss) on marketable securities | $ 1.3 | $ (7.4) | $ 0.6
Fair Value, Recurring |  |  |
Cash and Cash Equivalents [Line Items] |  |  |
Equity securities | 126.2 | 110.0 |
Other Current Assets | Fair Value, Recurring |  |  |
Cash and Cash Equivalents [Line Items] |  |  |
Equity securities | 37.6 | 30.9 |
Other Noncurrent Assets | Fair Value, Recurring |  |  |
Cash and Cash Equivalents [Line Items] |  |  |
Equity securities | $ 88.6 | $ 79.1 |

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