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Employee Benefits - Summary of Total Expense Related to All Postretirement Benefit Plans (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items] |  |
Net periodic postretirement and postemployment benefit cost relating to defined benefit plans | $ 1.2 | $ 0.3
Postretirement and Postemployment Benefit Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined contribution plan, cost | 6.0 | 5.8
Deferred compensation arrangement with individual, compensation expense | 0.2 | 0.7
Multiemployer plan, contributions by employer | 1.5 | 1.5
Net periodic postretirement and postemployment benefit cost relating to defined benefit plans | 2.3 | 1.5
Total other employee benefit plans | $ 10.0 | $ 9.5

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