Cash, Cash Equivalents, and Investments - Summary of Available-for-Sale Investments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 424,276
Gross Unrealized Gains	1,217
Gross Unrealized Losses	(47)
Fair Value	425,446
Asset-Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses	(27)
Asset-Backed Securities | Short-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33,721
Gross Unrealized Gains	32
Gross Unrealized Losses	(20)
Fair Value	33,733
Asset-Backed Securities | Long-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	36,930
Gross Unrealized Gains	36
Gross Unrealized Losses	(7)
Fair Value	36,959
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses	(16)
Corporate Bonds | Short-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	27,927
Gross Unrealized Gains	86
Gross Unrealized Losses	0
Fair Value	28,013
Corporate Bonds | Long-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	206,863
Gross Unrealized Gains	920
Gross Unrealized Losses	(16)
Fair Value	207,767
Treasury Bills
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses	(2)
Treasury Bills | Short-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,995
Gross Unrealized Gains	1
Gross Unrealized Losses	0
Fair Value	12,996
Treasury Bills | Long-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	74,953
Gross Unrealized Gains	20
Gross Unrealized Losses	(2)
Fair Value	74,971
Municipal Bonds | Short-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,699
Gross Unrealized Gains	8
Gross Unrealized Losses	0
Fair Value	5,707
Municipal Bonds | Long-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,838
Gross Unrealized Gains	47
Gross Unrealized Losses	0
Fair Value	4,885
Sovereign Bonds
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses	(2)
Sovereign Bonds | Short-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,219
Gross Unrealized Gains	9
Gross Unrealized Losses	0
Fair Value	3,228
Sovereign Bonds | Long-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,631
Gross Unrealized Gains	58
Gross Unrealized Losses	(2)
Fair Value	15,687
Agency Bonds | Long-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,500
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Value	$ 1,500