Restructuring - Summary of Activity of Restructuring (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance	$ 34,475	$ 10,837
Expense	46,031	53,844	$ 17,414
Cash payments	(56,099)	(28,624)
Foreign exchange translation and other	(169)	(1,582)
Restructuring Reserve, Ending Balance	24,238	34,475	10,837
Employee separation costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance	32,707	10,837
Expense	18,017	29,720
Cash payments	(28,665)	(6,765)
Foreign exchange translation and other	(132)	(1,085)
Restructuring Reserve, Ending Balance	21,927	32,707	10,837
Other exit costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance	1,768	0
Expense	28,014	23,696
Cash payments	(27,434)	(21,859)
Foreign exchange translation and other	(37)	(69)
Restructuring Reserve, Ending Balance	2,311	1,768	0
Asset Impairments [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance	0	0
Expense	0	428
Cash payments	0	0
Foreign exchange translation and other	0	428
Restructuring Reserve, Ending Balance	$ 0	$ 0	$ 0