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v3.24.3

Debt - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023 | Sep. 15, 2024
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, maturity date |  |  | Sep. 15, 2024 |  |  |
Cash payments paid for interest |  |  | $ 61.4 | $ 49.9 |  |
Amortization of financing costs | $ 0.5 | $ 0.4 | 1.4 | $ 1.2 |  |
Total | $ 2,492.1 |  | $ 2,492.1 |  | $ 2,891.7 |
3.65% Senior Notes, due September 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 3.65%
Debt instrument, redemption amount included premiums, accrued and unpaid interest |  |  |  |  |  | $ 407.3
Senior Notes | 5.70% Senior Note, Due November 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 5.70%
Senior Notes | 3.65% Senior Notes, due September 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate | 3.65% |  | 3.65% |  | 3.65% | 3.65%
Debt instrument, maturity date |  |  | Sep. 15, 2024 |  | Sep. 15, 2024 |
Total | $ 0.0 |  | $ 0.0 |  | $ 399.9 |
Senior Notes | Fixed-Rate Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Book value of fixed rate debt | 2,492.1 |  | 2,492.1 |  |  |
Long-term debt (fixed-rate debt), fair value | $ 2,208.8 |  | $ 2,208.8 |  |  |

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- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-2 + Details
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