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Marketable Securities (Tables) | 12 Months Ended
--- | ---
Mar. 29, 2014 | Mar. 30, 2013
Marketable Securities [Abstract] |  |
Schedule of Available-for-sale Securities |
|  |  |  |  |  |  |  |  |  | Estimated
|  |  |  | Gross |  | Gross |  | Fair Value
| Amortized |  | Unrealized |  | Unrealized |  | (Net Carrying
As of March 29, 2014 | Cost |  | Gains |  | Losses |  | Amount)
Corporate debt securities | $ | 246,878 |  | $ | 52 |  | $ | (245) |  | $ | 246,685
U.S. Treasury securities |  | 56,986 |  |  | 10 |  |  | (2) |  |  | 56,994
Agency discount notes |  | 2,008 |  |  | 1 |  |  | - |  |  | 2,009
Commercial paper |  | 41,962 |  |  | 10 |  |  | (2) |  |  | 41,970
Certificates of deposit |  | 5,006 |  |  | - |  |  | (4) |  |  | 5,002
Total securities | $ | 352,840 |  | $ | 73 |  | $ | (253) |  | $ | 352,660
|  |  |  |  |  |  | Estimated
|  |  | Gross |  | Gross |  | Fair Value
| Amortized |  | Unrealized |  | Unrealized |  | (Net Carrying
As of March 30, 2013 | Cost |  | Gains |  | Losses |  | Amount)
Corporate debt securities | $ | 94,798 |  | $ | 2 |  | $ | (133) |  | $ | 94,667
U.S. Treasury securities |  | 34,380 |  |  | 4 |  |  | (3) |  |  | 34,381
Agency discount notes |  | 1,027 |  |  | - |  |  | - |  |  | 1,027
Commercial paper |  | 40,089 |  |  | 9 |  |  | (28) |  |  | 40,070
Total securities | $ | 170,294 |  | $ | 15 |  | $ | (164) |  | $ | 170,145
Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity |
|  | March 29, 2014 |  | March 30, 2013
|  | Amortized |  | Estimated |  | Amortized |  | Estimated
|  | Cost |  | Fair Value |  | Cost |  | Fair Value
Within 1 year |  | $ | 263,418 |  | $ | 263,417 |  | $ | 105,290 |  | $ | 105,235
After 1 year |  |  | 89,422 |  |  | 89,243 |  |  | 65,004 |  |  | 64,910
Total |  | $ | 352,840 |  | $ | 352,660 |  | $ | 170,294 |  | $ | 170,145

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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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