Other Current Liabilities - Schedule of Changes in Liability for Product Warranty Claims (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities Disclosure [Abstract]
Balance at the beginning of the year	$ 6,358	$ 6,672	$ 6,899
Acquisitions - opening balance sheet liability for warranty claims	7,130	0	0
Satisfaction of warranty claims	(4,297)	(2,452)	(2,335)
Provision for warranty claims	3,282	2,293	2,300
Other, primarily impact from changes in foreign currency exchange rates	(952)	(155)	(192)
Balance at the end of the year	$ 11,521	$ 6,358	$ 6,672