Contingencies - Additional Information (Detail) $ in Millions		12 Months Ended			36 Months Ended
	Feb. 26, 2016 USD ($)	Dec. 31, 2015 USD ($) LegalMatter category Vendor	Dec. 31, 2014 USD ($) LegalMatter	Dec. 31, 2013 USD ($) LegalMatter	Dec. 31, 2015 USD ($) LegalMatter	Dec. 31, 2012 USD ($) LegalMatter
Loss Contingencies [Line Items]
Number of categories of product liability losses | category		2
Number of lawsuits | LegalMatter		1,988	2,326	2,840	1,988	2,609
Years of activity		5 years
Loss contingency accrual, payment term		182 days
Product liability losses					$ 156.1
Number of insurance carriers | Vendor		20
Increase (decrease) in insurance settlements receivable		$ 9.0
Insurance receivables		229.5	$ 220.5	$ 124.8	229.5	$ 130.0
Insurance receivable, current		2.0	2.0		2.0
Insurance receivable, noncurrent		227.5	218.5		227.5
Single Incident
Loss Contingencies [Line Items]
Reserves for product liability claims		3.5	3.5		3.5
Product liability losses		0.9
Cumulative Trauma
Loss Contingencies [Line Items]
Reserves for product liability claims			74.9
Loss contingency accrual, product liability, net		50.1			50.1
Cumulative Trauma, Reported Claims
Loss Contingencies [Line Items]
Loss contingency accrual, product liability, net		7.1			$ 7.1
Uninsured Cumulative Trauma
Loss Contingencies [Line Items]
Product liability losses		$ 1.0	3.9	$ 1.7
Other Noncurrent Liabilities | Cumulative Trauma
Loss Contingencies [Line Items]
Reserves for product liability claims			$ 35.1
Subsequent Event | Insurance Claims
Loss Contingencies [Line Items]
Total damages in verdict against MSA LLC	$ 7.2