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Marketable Securities (Tables) | 12 Months Ended
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Mar. 28, 2015
Marketable Securities [Abstract] |
Schedule of Available-for-sale Securities |
|  |  |  |  |  |  |  |  |  | Estimated
|  |  |  | Gross |  | Gross |  | Fair Value
| Amortized |  | Unrealized |  | Unrealized |  | (Net Carrying
As of March 28, 2015 | Cost |  | Gains |  | Losses |  | Amount)
Corporate debt securities | $ | 153,896 |  | $ | 8 |  | $ | (68) |  | $ | 153,836
Commercial paper |  | 2,485 |  |  | 2 |  |  | - |  |  | 2,487
U.S. Treasury securities |  | 28,010 |  |  | - |  |  | (15) |  |  | 27,995
Total securities | $ | 184,391 |  | $ | 10 |  | $ | (83) |  | $ | 184,318
The Company’s specifically identified gross unrealized losses of $83 thousand relates to 34 different securities with a total amortized cost of approximately $154.3 million at March 28, 2015. Because the Company does not intend to sell the investments at a loss and the Company will not be required to sell the investments before recovery of its amortized cost basis, it did not consider the investment in these securities to be other-than-temporarily impaired at March 28, 2015. Further, the securities with gross unrealized losses had been in a continuous unrealized loss position for less than 12 months as of March 28, 2015.
|  |  |  |  |  |  | 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
Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity |
|  | March 28, 2015 |  | March 29, 2014
|  | Amortized |  | Estimated |  | Amortized |  | Estimated
|  | Cost |  | Fair Value |  | Cost |  | Fair Value
Within 1 year |  | $ | 124,275 |  | $ | 124,246 |  | $ | 263,418 |  | $ | 263,417
After 1 year |  |  | 60,116 |  |  | 60,072 |  |  | 89,422 |  |  | 89,243
Total |  | $ | 184,391 |  | $ | 184,318 |  | $ | 352,840 |  | $ | 352,660

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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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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