v3.25.2
Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Income Statement [Abstract]        
Changes in unrealized losses on marketable debt securities, tax $ 0.0 $ 0.0 $ 0.0 $ 0.0
Amortization of pension and postretirement plans actuarial loss and prior service cost, tax $ (0.3) $ (0.3) $ (0.6) $ (0.7)