Employee Benefits - Summary of Total Expense Related to All Postretirement Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement benefit cost relating to defined benefit plans	$ 8.4	$ 5.6	$ 4.1
Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost	18.1	17.1	13.9
Deferred compensation arrangement with individual, compensation expense	1.2	(0.6)	0.7
Multiemployer plan, contributions by employer	5.6	5.2	5.0
Net periodic postretirement benefit cost relating to defined benefit plans	13.4	13.1	9.4
Total other employee benefit plans	$ 38.3	$ 34.8	$ 29.0