XML 83 R69.htm IDEA: XBRL DOCUMENT v3.24.0.1
Pension Benefits - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Pension Benefits    
Period of service to become eligible 6 months  
Accumulated benefit obligation $ 3.9 $ 3.2
Subsidiaries    
Pension Benefits    
Pension expense $ 1.2 $ 1.1