Acquisitions - Summary of Consideration Paid (Detail) - Qelp [Member] - USD ($) $ in Thousands	Jul. 02, 2015	Dec. 31, 2015
Business Acquisition [Line Items]
Cash	$ 9,885
Fair value of contingent consideration	6,000	$ 6,280
Working capital adjustment	(65)
Total Consideration paid	$ 15,820