Long-term Debt - Long-term Debt Outstanding (Details) - USD ($) $ in Millions	Sep. 30, 2024	Aug. 31, 2024	Dec. 31, 2023
Schedule of Outstanding Long-term Debt
Finance lease obligations	$ 324.0		$ 340.1
Total debt and finance lease obligations	2,577.5		2,712.6
Less: Current portion	(233.0)		(24.8)
Long-term debt, net of current portion	$ 2,344.5		$ 2,687.8
Senior Notes \| 5.75% Senior Notes due 2025
Schedule of Outstanding Long-term Debt
Debt instrument interest rate (as percent)	5.75%	5.75%	5.75%
Long-term debt	$ 199.5		$ 348.5
Senior Notes \| 4.50% Senior Notes due 2028
Schedule of Outstanding Long-term Debt
Debt instrument interest rate (as percent)	4.50%		4.50%
Long-term debt	$ 787.5		$ 785.0
Senior Notes \| 4.75% Senior Notes due 2030
Schedule of Outstanding Long-term Debt
Debt instrument interest rate (as percent)	4.75%		4.75%
Long-term debt	$ 783.5		$ 781.5
Senior Notes \| 4.625% Senior Notes due 2031
Schedule of Outstanding Long-term Debt
Debt instrument interest rate (as percent)	4.625%		4.625%
Long-term debt	$ 392.3		$ 391.5
Other notes payable
Schedule of Outstanding Long-term Debt
Long-term debt	90.7		66.0
Advances under revolving credit facility \| Line of Credit \| Credit Agreement
Schedule of Outstanding Long-term Debt
Long-term debt	$ 0.0		$ 0.0

Amount of short-term and long-term debt and lease obligation.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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