Corporate Restructuring and Other Organizational Changes - Components of Corporate Restructuring and Other Reorganization Activities from Recent Acquisitions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 1,045	$ 2,793
Restructuring charges (adjustments) incurred, net	5,041	1,339
Amounts paid during the period	(1,432)	(3,056)
Foreign currency translation adjustments	(95)	(31)
Ending balance	4,559	1,045
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	777	2,341
Restructuring charges (adjustments) incurred, net		1,339
Amounts paid during the period	(778)	(2,872)
Foreign currency translation adjustments	1	(31)
Ending balance		777
Facility Closures [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	268	452
Restructuring charges (adjustments) incurred, net	5,041
Amounts paid during the period	(654)	(184)
Foreign currency translation adjustments	(96)
Ending balance	$ 4,559	$ 268