v3.25.4

Derivatives and Financial Instruments - Recorded Amounts and Estimated Fair Values of Long-term Debt and Derivative Financial Instruments (Detail) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Derivative [Line Items] |  |
Total debt | $ 1,559.8 | $ 2,155.0
Recorded Amount |  |
Derivative [Line Items] |  |
Variable rate debt | 268.2 | 866.3
Fixed rate debt | 1,300.0 | 1,300.0
Total debt | 1,568.2 | 2,166.3
Fair Value |  |
Derivative [Line Items] |  |
Variable rate debt | 268.2 | 866.3
Fixed rate debt | 1,296.9 | 1,251.8
Total debt | $ 1,565.1 | $ 2,118.1

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