Cash, Cash Equivalents, and Investments - Gross Unrealized Losses and Fair Values for Available-for-Sale Investments (Detail) $ in Thousands	Apr. 03, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Fair value, less than 12 months	$ 253,434
Unrealized losses, less than 12 months	(663)
Fair value, 12 months or greater	29,586
Unrealized losses, 12 months or greater	(190)
Total fair value	283,020
Total unrealized losses	(853)
Treasury Bills
Schedule of Available-for-sale Securities [Line Items]
Fair value, less than 12 months	89,283
Unrealized losses, less than 12 months	(18)
Fair value, 12 months or greater	0
Unrealized losses, 12 months or greater	0
Total fair value	89,283
Total unrealized losses	(18)
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Fair value, less than 12 months	85,206
Unrealized losses, less than 12 months	(545)
Fair value, 12 months or greater	24,501
Unrealized losses, 12 months or greater	(181)
Total fair value	109,707
Total unrealized losses	(726)
Asset-Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Fair value, less than 12 months	48,642
Unrealized losses, less than 12 months	(82)
Fair value, 12 months or greater	5,085
Unrealized losses, 12 months or greater	(9)
Total fair value	53,727
Total unrealized losses	(91)
Sovereign Bonds
Schedule of Available-for-sale Securities [Line Items]
Fair value, less than 12 months	22,108
Unrealized losses, less than 12 months	(14)
Fair value, 12 months or greater	0
Unrealized losses, 12 months or greater	0
Total fair value	22,108
Total unrealized losses	(14)
Agency Bonds
Schedule of Available-for-sale Securities [Line Items]
Fair value, less than 12 months	8,195
Unrealized losses, less than 12 months	(4)
Fair value, 12 months or greater	0
Unrealized losses, 12 months or greater	0
Total fair value	8,195
Total unrealized losses	$ (4)