Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Apr. 03, 2016	Apr. 05, 2015	Dec. 31, 2015
Financial Instruments and Fair Value [Line Items]
Available-for-sale securities, realized loss	$ 200,000	$ 0
Available-for-sale securities, realized gain	200,000	500,000
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	294,269,000		$ 601,660,000
Fair market value of investments with unrealized losses greater than one year	2,800,000		900,000
Aggregate loss of investments with unrealized losses greater than one year	500,000		500,000
Fair market value of investments with unrealized losses less than one year	291,500,000		600,800,000
Aggregate loss of investments with unrealized losses less than one year	1,100,000		3,600,000
Gains (losses) on foreign currency transactions	3,400,000	4,300,000
Realized gain(loss) on foreign currency contracts	(3,300,000)	$ (3,400,000)
Universal Robots
Financial Instruments and Fair Value [Line Items]
Maximum payment per earn-out	25,000,000
Avionics Interface Technologies, LLC
Financial Instruments and Fair Value [Line Items]
Maximum payment per earn-out	1,100,000
Foreign Currency Forward Contracts
Financial Instruments and Fair Value [Line Items]
Notional amount of foreign currency forward contracts	138,500,000		114,100,000
Gains (losses) on foreign currency transactions	$ (200,000)		$ 0