Corporate Restructuring and Other Organizational Changes - Components of Corporate Restructuring and Other Reorganization Activities from Recent Acquisitions (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 2,793
Restructuring charges incurred	1,338
Amounts paid during the period	(2,789)
Foreign currency translation	(28)
Ending balance	1,314
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	2,341
Restructuring charges incurred	1,338
Amounts paid during the period	(2,651)
Foreign currency translation	(28)
Ending balance	1,000
Facility Closures [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	452
Amounts paid during the period	(138)
Ending balance	$ 314