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Cash, Cash Equivalents, and Investments - Gross Unrealized Losses and Fair Values for Available-for-Sale Investments (Detail) (USD $) In Thousands, unless otherwise specified | Mar. 30, 2014
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Schedule of Available-for-sale Securities [Line Items] |
Fair Value, Less than 12 Months | $ 164,659
Unrealized Losses, Less than 12 Months | (293)
Fair Value, 12 Months or Greater | 8,456
Unrealized Losses, 12 Months or Greater | (27)
Total Fair Value | 173,115
Total Unrealized Losses | (320)
Corporate Bonds |
Schedule of Available-for-sale Securities [Line Items] |
Fair Value, Less than 12 Months | 55,024
Unrealized Losses, Less than 12 Months | (98)
Fair Value, 12 Months or Greater | 0
Unrealized Losses, 12 Months or Greater | 0
Total Fair Value | 55,024
Total Unrealized Losses | (98)
Asset-Backed Securities |
Schedule of Available-for-sale Securities [Line Items] |
Fair Value, Less than 12 Months | 23,535
Unrealized Losses, Less than 12 Months | (38)
Fair Value, 12 Months or Greater | 8,456
Unrealized Losses, 12 Months or Greater | (27)
Total Fair Value | 31,991
Total Unrealized Losses | (65)
Sovereign Bonds |
Schedule of Available-for-sale Securities [Line Items] |
Fair Value, Less than 12 Months | 3,347
Unrealized Losses, Less than 12 Months | (18)
Fair Value, 12 Months or Greater | 0
Unrealized Losses, 12 Months or Greater | 0
Total Fair Value | 3,347
Total Unrealized Losses | (18)
Treasury Bills |
Schedule of Available-for-sale Securities [Line Items] |
Fair Value, Less than 12 Months | 82,753
Unrealized Losses, Less than 12 Months | (139)
Fair Value, 12 Months or Greater | 0
Unrealized Losses, 12 Months or Greater | 0
Total Fair Value | 82,753
Total Unrealized Losses | $ (139)

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- Definition Available For Sale Securities Continuous Unrealized Loss Position greater Than 12 Months Aggregate Losses Accumulated In Investments + References No definition available. + Details
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- Definition Amount of accumulated pre-tax unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months impacting investments. + References No definition available. + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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