v3.26.1
Pension Benefits (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Pension Benefits        
Period of service to become eligible     6 months  
Subsidiaries        
Pension Benefits        
Pension expense $ 0.4 $ 0.3 $ 0.8 $ 0.7