Supplemental Cash Flow Information - Schedule of Noncash Investing and Financing Activities (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Supplemental Cash Flow Elements [Abstract]
Accrued liabilities for purchases of property, plant and equipment	$ 65.3	$ 51.8
Remeasurement of operating lease right-of-use assets	6.1	(4.9)
Remeasurement of finance lease right-of-use assets	0.0	(11.4)
Right-of-use assets obtained in exchange for new operating lease liabilities	36.9	23.4
Right-of-use assets obtained in exchange for new finance lease liabilities	18.7	10.2
Acquisition of assets through asset exchange	5.2	0.0
Accounts payable relieved in connection with sale of property, plant and equipment	$ 0.7	$ 0.0