v3.26.1
Debt and Financing Arrangements - Estimated Fair Value Of Long Term Debt (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Debt Instrument [Line Items]      
Estimated Fair Value of Long-Term Debt $ 670.2 $ 623.4 $ 579.7