Income Taxes - Schedule of Significant Deferred Tax Assets And Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Components Of Deferred Tax Assets And Liabilities [Abstract]
Pension and OPEB plan liabilities		$ 29.1
Net operating losses and other tax carryforwards	$ 189.5	195.6
Interest limitation carryforward	38.6	21.4
Accrued liabilities	37.7	48.6
Foreign depreciation	8.2	19.4
Operating lease liabilities	55.9	59.4
Other	14.1	16.7
Total deferred tax assets	344.0	390.2
Valuation allowances	(200.7)	(195.7)
Net deferred tax assets	143.3	194.5
Accelerated depreciation	(36.3)	(50.0)
Other intangible assets	(6.4)	(8.1)
Inventories	(10.4)	(8.6)
Operating lease assets	(54.6)	(58.1)
Pension and OPEB plan liabilities	(10.3)
Other	(8.3)	(5.7)
Total deferred tax liabilities	(126.3)	(130.5)
Total net deferred tax assets	$ 17.0	$ 64.0