v3.25.4

Debt - Debt Outstanding and Average Interest Rates (Detail) - USD ($) $ in Millions | Dec. 31, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Apr. 30, 2023
--- | --- | --- | --- | ---
Debt Disclosure [Line Items] |  |  |  |
Long-term debt, gross | $ 1,568.2 |  |  |
Unamortized issuance costs and discounts | (8.4) |  | $ (11.3) |
Total debt | 1,559.8 |  | 2,155.0 |
Less: Current maturities and short-term borrowings | (13.8) |  | (37.5) |
Long-term debt | 1,546.0 |  | 2,117.5 |
Debt, Current | (13.8) |  | (37.5) |
Revolving Credit Facility |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Long-term debt, gross | 0.0 |  | 0.0 |
Senior Notes | 2021 Term loan facility | Line of Credit |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Long-term debt, gross | 0.0 |  | 88.8 |
Senior Notes | 2023 Term loan facility | Line of Credit |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Long-term debt, gross | $ 0.0 |  | 277.5 | $ 300.0
Senior Notes | Senior Notes 4.550% Due 2028 |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Average interest rate | 4.55% |  |  |
Long-term debt, gross | $ 500.0 |  | 500.0 |
Senior Notes | Senior Notes 2.750% Due 2031 |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Average interest rate | 2.75% |  |  |
Long-term debt, gross | $ 300.0 |  | 300.0 |
Senior Notes | Senior Notes 5.650% Due 2033 |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Average interest rate | 5.65% |  |  |
Long-term debt, gross | $ 500.0 |  | 500.0 |
Senior Notes | 2024 Term Loan Facility | Line of Credit |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Long-term debt, gross | $ 0.0 | $ 500.0 | 500.0 |
Senior Notes | 2025 Term Loan Facility | Line of Credit |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Average interest rate | 4.977% |  |  |
Long-term debt, gross | $ 268.2 |  | $ 0.0 |

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