Asset Impairment Charges and Facility Closing and Reorganization Costs - Approved Plans and Related Charges (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Other	$ 0	$ 0	$ 5
Total	19,844	4,460	27,008
Closure of facilities
Restructuring Cost and Reserve [Line Items]
Closure of facilities	19,844	4,460	20,845
Charges incurred to date	65,100
Expected costs	9,300
Functional Realignment
Restructuring Cost and Reserve [Line Items]
Functional Realignment	0	0	892
Charges incurred to date	33,100
Field and Functional Reorganization
Restructuring Cost and Reserve [Line Items]
Severance Costs	0	$ 0	$ 5,266
Charges incurred to date	$ 11,300