Other Current Liabilities - Schedule of Changes in Liability for Product Warranty Claims (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other Liabilities Disclosure [Abstract]
Balance at beginning of the period	$ 11,521	$ 6,358
Acquisitions - opening balance sheet liability for warranty claims	0	6,032
Satisfaction of warranty claims	(870)	(558)
Provision for warranty claims	1,019	613
Other, primarily impact from changes in foreign currency exchange rates	78	135
Balance at end of the period	$ 11,748	$ 12,580