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v3.20.2

Marketable Securities (Tables) | 6 Months Ended
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Sep. 26, 2020
Marketable Securities [Abstract] |
Schedule of Available-for-sale Securities | The following table is a summary of available-for-sale securities at September 26, 2020 (in thousands):
As of September 26, 2020 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value (Net Carrying Amount)
Corporate debt securities | $ | 342,943 |  |  | $ | 6,136 |  |  | $ | (63) |  |  | $ | 349,016 |
Non-U.S. government securities | 10,520 |  |  | 250 |  |  | — |  |  | 10,770 |
U.S. Treasury securities | 1,263 |  |  | 18 |  |  | — |  |  | 1,281 |
Agency discount notes | 3,824 |  |  | 5 |  |  | — |  |  | 3,829 |
Total securities | $ | 358,550 |  |  | $ | 6,409 |  |  | $ | (63) |  |  | $ | 364,896 |
The following table is a summary of available-for-sale securities at March 28, 2020 (in thousands): ໿ ໿
As of March 28, 2020 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value (Net Carrying Amount)
Corporate debt securities | $ | 286,668 |  |  | $ | 1,157 |  |  | $ | (3,993) |  |  | $ | 283,832 |
Non-U.S. government securities | 12,483 |  |  | 260 |  |  | — |  |  | 12,743 |
U.S. Treasury securities | 8,839 |  |  | 167 |  |  | — |  |  | 9,006 |
Total securities | $ | 307,990 |  |  | $ | 1,584 |  |  | $ | (3,993) |  |  | $ | 305,581 |
Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity | The cost and estimated fair value of available-for-sale securities by contractual maturities were as follows (in thousands): ໿
| September 26, 2020 |  | March 28, 2020
| Amortized |  | Estimated |  | Amortized |  | Estimated
| Cost |  | Fair Value |  | Cost |  | Fair Value
Within 1 year | $ | 36,020 |  |  | $ | 36,641 |  |  | $ | 22,012 |  |  | $ | 22,008 |
After 1 year | 322,530 |  |  | 328,255 |  |  | 285,978 |  |  | 283,573 |
Total | $ | 358,550 |  |  | $ | 364,896 |  |  | $ | 307,990 |  |  | $ | 305,581 |

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