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Shareholders' Equity - Additional Information (Details) $ / shares in Units, $ in Millions |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 18, 2023 USD ($) $ / shares shares | May 22, 2023 | Sep. 30, 2024 USD ($) shares | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2023 USD ($) shares | Sep. 30, 2024 USD ($) shares | Sep. 30, 2023 USD ($) shares | Dec. 15, 2023 $ / shares | Sep. 29, 2021 USD ($)
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |
Repurchase aggregate cost |  |  | $ 9.0 | $ 13.0 | $ 145.7 | $ 37.3 |  |  |  |
Share price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 128.95 |
Stock split, conversion ratio |  | 2 |  |  |  |  |  |  |  |
2021 Stock Repurchase Program |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |
Authorized stock repurchase amount |  |  |  |  |  |  |  |  |  | $ 500.0
Remaining unused authorization for stock repurchase program |  |  | $ 170.9 |  |  |  | $ 170.9 |  |  |
Repurchase of common stock (in shares) | shares |  |  | 67,139 |  |  | 310,367 | 345,834 | 310,367 |  |
Repurchase aggregate cost |  |  | $ 9.0 |  |  | $ 37.3 | $ 43.9 | $ 37.3 |  |
Stock Repurchase Agreement with The Duchossois Group, Inc Affiliate |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |
Repurchase of common stock (in shares) | shares | 1,000,000 |  |  |  |  |  |  |  |  |
Price per common stock (in dollars per share) | $ / shares | $ 123.75 |  |  |  |  |  |  |  |  |
Purchase discount | 4.03% |  |  |  |  |  |  |  |  |
Stock Repurchase Agreement with The Duchossois Group, Inc Affiliate | Affiliate Of Duchossois Group, Inc. |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |
Repurchase aggregate cost | $ 123.8 |  |  |  |  |  |  |  |  |

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