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Cash, cash equivalents and short-term investments (Tables) | 12 Months Ended
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Dec. 29, 2017
Cash and Cash Equivalents [Abstract] |
Schedule of Cash, Cash Equivalents and Short-Term Investments | Cash, cash equivalents and short-term investments consisted of the following as of December 29, 2017:
|  | Amortized |  | Unrealized |  | Unrealized |  | Estimated |
(In thousands) |  | Cost |  | Gains |  | Losses |  | Fair Value |
Classified as current assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 115,052 |  | $ | - |  | $ | - |  | $ | 115,052 |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |
Money market securities |  |  | 9,742 |  |  | - |  |  | - |  |  | 9,742 |
Total cash equivalents |  |  | 9,742 |  |  | - |  |  | - |  |  | 9,742 |
Total cash and cash equivalents |  |  | 124,794 |  |  | - |  |  | - |  |  | 124,794 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Agency securities |  |  | 71,997 |  |  | - |  |  | (393) |  |  | 71,604 |
Total short-term investments |  |  | 71,997 |  |  | - |  |  | (393) |  |  | 71,604 |
Total cash, cash equivalents and short-term investments |  | $ | 196,791 |  | $ | - |  | $ | (393) |  | $ | 196,398 |
Cash, cash equivalents and short-term investments consisted of the following as of December 30, 2016:
|  | Amortized |  | Unrealized |  | Unrealized |  | Estimated |
(In thousands) |  | Cost |  | Gains |  | Losses |  | Fair Value |
Classified as current assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 93,049 |  | $ | - |  | $ | - |  | $ | 93,049 |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |
Money market securities |  |  | 21,918 |  |  | - |  |  | - |  |  | 21,918 |
Total cash equivalents |  |  | 21,918 |  |  | - |  |  | - |  |  | 21,918 |
Total cash and cash equivalents |  |  | 114,967 |  |  | - |  |  | - |  |  | 114,967 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Agency securities |  |  | 59,000 |  |  | - |  |  | (245) |  |  | 58,755 |
Total short-term investments |  |  | 59,000 |  |  | - |  |  | (245) |  |  | 58,755 |
Total cash, cash equivalents and short-term investments |  | $ | 173,967 |  | $ | - |  | $ | (245) |  | $ | 173,722 |

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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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