Cash, Cash Equivalents, and Investments - Effective Maturity Dates of Available-for-Sale Investments (Detail) $ in Thousands	Apr. 02, 2017 USD ($)
Schedule of Available-for-sale Securities [Line Items]
1 year or less	$ 376,027
1-2 years	164,659
2-3 years	113,813
3-4 years	9,584
4-5 years	21,234
5-7 years	3,560
Fair value	688,877
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
1 year or less	128,507
1-2 years	87,341
2-3 years	82,646
3-4 years	3,928
4-5 years	21,213
5-7 years	0
Fair value	323,635
Asset-Backed Securities
Schedule of Available-for-sale Securities [Line Items]
1 year or less	58,649
1-2 years	9,960
2-3 years	23,850
3-4 years	5,656
4-5 years	21
5-7 years	3,560
Fair value	101,696
Treasury Bills
Schedule of Available-for-sale Securities [Line Items]
1 year or less	92,883
1-2 years	53,370
2-3 years	0
3-4 years	0
4-5 years	0
5-7 years	0
Fair value	146,253
Sovereign Bonds
Schedule of Available-for-sale Securities [Line Items]
1 year or less	12,340
1-2 years	13,988
2-3 years	4,589
3-4 years	0
4-5 years	0
5-7 years	0
Fair value	30,917
Euro Liquidity Fund
Schedule of Available-for-sale Securities [Line Items]
1 year or less	73,868
1-2 years	0
2-3 years	0
3-4 years	0
4-5 years	0
5-7 years	0
Fair value	73,868
Agency Bonds
Schedule of Available-for-sale Securities [Line Items]
1 year or less	7,620
1-2 years	0
2-3 years	2,728
3-4 years	0
4-5 years	0
5-7 years	0
Fair value	10,348
Municipal Bonds
Schedule of Available-for-sale Securities [Line Items]
1 year or less	2,160
1-2 years	0
2-3 years	0
3-4 years	0
4-5 years	0
5-7 years	0
Fair value	$ 2,160