v3.26.1
Retirement Benefits - Narrative (Details) - Pension Benefits - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Defined Benefit Plan Disclosure [Line Items]              
Curtailment $ 0.0   $ 0.0 $ 0.7 $ 0.0 $ 0.7  
Contributions to fund liquidation             $ 4.3
Settlement   $ 10.0