Restructuring and Divestiture Costs - Corporate - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 36,700,000	$ 700,000
Remaining restructuring payments	1,900,000
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Payment for restructuring costs	2,200,000
Executives [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,800,000	0
Facility Closing [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,300,000	$ 0