Cash, Cash Equivalents, and Investments - Effective Maturity Dates of Available-for-Sale Investments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2014
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	$ 83,677
1-2 Years	169,664
2-3 Years	123,557
3-4 Years	20,652
4-5 Years	27,896
Fair Value	425,446
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	28,013
1-2 Years	70,775
2-3 Years	102,454
3-4 Years	12,061
4-5 Years	22,477
Fair Value	235,780
Treasury Bills
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	12,996
1-2 Years	66,770
2-3 Years	8,201
3-4 Years	0
4-5 Years	0
Fair Value	87,967
Asset-Backed Securities
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	33,733
1-2 Years	17,947
2-3 Years	5,506
3-4 Years	8,087
4-5 Years	5,419
Fair Value	70,692
Sovereign Bonds
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	3,228
1-2 Years	12,324
2-3 Years	3,363
3-4 Years	0
4-5 Years	0
Fair Value	18,915
Municipal Bonds
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	5,707
1-2 Years	1,848
2-3 Years	2,533
3-4 Years	504
4-5 Years	0
Fair Value	10,592
Agency Bonds
Schedule of Available-for-sale Securities [Line Items]
1 Year or Less	0
1-2 Years	0
2-3 Years	1,500
3-4 Years	0
4-5 Years	0
Fair Value	$ 1,500