Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Detail) $ in Millions		12 Months Ended			36 Months Ended
	Aug. 04, 2015 Entity	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2014 USD ($) Customer	Dec. 31, 2013 USD ($) Customer	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of entities resulting from expected spinoff of an entity	3
Number of entities in which shareholders will likely to receive tax-free distribution of shares	2
Number of entities in which shareholders will own shares after spinoff	3
Number of single customers comprising more than 10% of consolidated net sales | Customer		0	0	0
Percentage of net sales per customer, maximum		10.00%	10.00%	10.00%
Percentage of inventory valued at LIFO		57.60%	59.80%		57.60%	59.80%
Annual goodwill impairment testing date		--10-31
Computer Software, Intangible Asset
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Amortization expense, primarily related to internally-developed software | $		$ 44.0	$ 41.2	$ 34.1
Minimum | Buildings
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		15 years
Minimum | Machinery and Equipment
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		3 years
Maximum | Computer Software, Intangible Asset
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of computer software		5 years
Maximum | Buildings
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		40 years
Maximum | Leasehold Improvements
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		7 years
Maximum | Machinery and Equipment
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life		15 years
Devaluation of Venezuelan Bolivar
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Maximum three year cumulative inflation using the blended Consumer Price Index and National Consumer Price Index					100.00%	100.00%	100.00%	100.00%	100.00%	100.00%