Leases - Schedule of Lease Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Other non-current assets:
Finance leases - ROU assets	$ 39.2	$ 36.0
Finance leases - Accumulated depreciation	(19.0)	(14.9)
Operating lease right-of-use-assets:
Operating leases - ROU assets	222.4	203.1
Operating leases - Accumulated depreciation	(124.4)	(116.6)
Total lease assets	118.2	107.6
Current portion of long-term debt:
Finance leases	(6.6)	(6.7)
Current portion of operating lease liabilities:
Operating leases	(29.7)	(29.2)
Long-term debt, less current portion:
Finance leases	(12.9)	(12.8)
Long-term operating lease liabilities, less current portion:
Operating leases	(74.8)	(66.7)
Total lease liabilities	$ (124.0)	$ (115.4)
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other non-current assets	Other non-current assets
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of long-term debt (Note 15)	Current portion of long-term debt (Note 15)
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, less current portion (Note 15)	Long-term debt, less current portion (Note 15)