Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Debt issuance cost	$ (20.6)	$ (20.4)
Total long-term debt	3,109.6	3,104.0
Less: debt maturing within one year	81.9	76.1
Total long-term debt, less current portion	3,027.7	3,027.9
Pollution control and industrial revenue bonds (less unamortized discounts of $0.1 and $0.1, respectively)
Debt Instrument [Line Items]
Unamortized discount	$ 0.1	0.1
Interest Rate Percentage	6.45%
Long-term debt, gross	$ 49.9	49.9
Senior notes (less unamortized discount of $1.6 and $1.6, respectively)
Debt Instrument [Line Items]
Unamortized discount	1.6	1.6
Long-term debt, gross	$ 2,998.4	2,998.4
Senior notes (less unamortized discount of $1.6 and $1.6, respectively) \| Minimum
Debt Instrument [Line Items]
Interest Rate Percentage	3.20%
Senior notes (less unamortized discount of $1.6 and $1.6, respectively) \| Maximum
Debt Instrument [Line Items]
Interest Rate Percentage	6.40%
Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding amount	$ 210.1
Line of credit, remaining borrowing capacity	$ 1,095.1
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Interest Rate Percentage	7.10%
Long-term debt, gross	$ 0.0	0.0
Foreign debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 81.9	$ 76.1
Foreign debt \| Minimum
Debt Instrument [Line Items]
Interest Rate Percentage	12.10%
Foreign debt \| Maximum
Debt Instrument [Line Items]
Interest Rate Percentage	12.60%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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