Acquisitions - Additional Information (Detail) - USD ($)		3 Months Ended
	Jun. 11, 2015	Apr. 03, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Payments of contingent consideration		$ 11,697,000
Universal Robots
Business Acquisition [Line Items]
Total purchase price	$ 315,437,000
Cash paid to acquire outstanding common and preferred stock	283,800,000
Contingent consideration	31,600,000
Arrangement range of outcomes value high	65,000,000
Payments of contingent consideration		$ 15,000,000
EBITDA contingent consideration amount, percentage		100.00%
Decrease in goodwill			$ (5,400,000)
Contingent consideration adjustment			(2,200,000)
Increase in intangible assets			1,600,000
Decrease in acquired liabilities			$ (1,600,000)
Goodwill, not deductible for tax purposes	$ 221,100,000