XML 84 R69.htm IDEA: XBRL DOCUMENT v3.22.4
Employee Benefits - Summary of Total Expense Related to All Postretirement Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Defined contribution plan, cost $ 17.1 $ 13.9 $ 8.3
Deferred compensation arrangement with individual, compensation expense (0.6) 0.7 1.5
Multiemployer plan, contributions by employer 5.2 5.0 4.9
Net periodic postretirement benefit cost relating to defined benefit plans 5.6 4.1 4.7
Total other employee benefit plans 34.8 29.0 19.9
Cost Relating to Defined Benefit Plans      
Defined Benefit Plan Disclosure [Line Items]      
Net periodic postretirement benefit cost relating to defined benefit plans $ 13.1 $ 9.4 $ 5.2