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Marketable Securities (Tables) | 12 Months Ended
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Mar. 26, 2016
Marketable Securities [Abstract] |
Schedule of Available-for-sale Securities |
﻿ |  |  |  |  |  |  |  |  |  | Estimated
﻿ |  |  |  | Gross |  | Gross |  | Fair Value
﻿ | Amortized |  | Unrealized |  | Unrealized |  | (Net Carrying
﻿As of March 26, 2016 | Cost |  | Gains |  | Losses |  | Amount)
﻿Corporate debt securities | $ | 81,310 |  | $ | 3 |  | $ | (100) |  | $ | 81,213
﻿ The Company’s specifically identified gross unrealized losses of $100 thousand relates to 21 different securities with a total amortized cost of approximately $64.7 million at March 26, 2016. Two securities had been in a continuous unrealized loss position for more than 12 months as of March 26, 2016. The gross unrealized loss on both of these securities was less than one half of one percent of the position value, and both securities mature during the first half of fiscal year 2017. Because the Company does not intend to sell the investments at a loss and it is not more likely than not that the Company will 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 26, 2016. ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  | 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
﻿U.S. Treasury securities |  | 28,010 |  |  | - |  |  | (15) |  |  | 27,995
﻿Commercial paper |  | 2,485 |  |  | 2 |  |  | - |  |  | 2,487
﻿Total securities | $ | 184,391 |  | $ | 10 |  | $ | (83) |  | $ | 184,318
﻿
Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | March 26, 2016 |  | March 28, 2015
﻿ |  | Amortized |  | Estimated |  | Amortized |  | Estimated
﻿ |  | Cost |  | Fair Value |  | Cost |  | Fair Value
﻿Within 1 year |  | $ | 60,603 |  | $ | 60,582 |  | $ | 124,275 |  | $ | 124,246
﻿After 1 year |  |  | 20,707 |  |  | 20,631 |  |  | 60,116 |  |  | 60,072
﻿Total |  | $ | 81,310 |  | $ | 81,213 |  | $ | 184,391 |  | $ | 184,318
﻿

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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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