| Assets Measured at Fair Value |
The following table sets forth financial instruments carried at fair value within the U.S. GAAP hierarchy and using the lowest level of input (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 24, 2012 | | June 26, 2011 | | Level 1 | | Level 2 | | Level 3 | | Total | | Level 1 | | Level 2 | | Level 3 | | Total | Assets: | | | | | | | | | | | | | | | | Cash equivalents | | | | | | | | | | | | | | | | Municipal bonds | $ | — |
| | $ | 3,000 |
| | $ | — |
| | $ | 3,000 |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| Money market funds | 31,318 |
| | — |
| | — |
| | 31,318 |
| | 7,386 |
| | — |
| | — |
| | 7,386 |
| Total cash equivalents | $ | 31,318 |
| | $ | 3,000 |
| | $ | — |
| | $ | 34,318 |
| | $ | 7,386 |
| | $ | — |
| | $ | — |
| | $ | 7,386 |
| Short-term investments | | | | | | | | | | | | | | | | Municipal bonds | — |
| | 211,604 |
| | — |
| | 211,604 |
| | — |
| | 395,398 |
| | — |
| | $ | 395,398 |
| Corporate bonds | — |
| | 146,667 |
| | — |
| | 146,667 |
| | — |
| | 209,438 |
| | — |
| | 209,438 |
| Municipal variable rate demand notes | — |
| | — |
| | — |
| | — |
| | — |
| | 295 |
| | — |
| | 295 |
| U.S. agency securities | — |
| | 68,599 |
| | — |
| | 68,599 |
| | — |
| | 68,049 |
| | — |
| | 68,049 |
| Certificates of deposit | — |
| | 130,000 |
| | — |
| | 130,000 |
| | — |
| | 10,015 |
| | — |
| | 10,015 |
| Commercial paper | — |
| | — |
| | — |
| | — |
| | — |
| | 4,999 |
| | — |
| | 4,999 |
| Non-U.S. government securities | — |
| | 8,758 |
| | — |
| | 8,758 |
| | — |
| | 7,005 |
| | — |
| | 7,005 |
| Total short-term investments | $ | — |
| | $ | 565,628 |
| | $ | — |
| | $ | 565,628 |
| | $ | — |
| | $ | 695,199 |
| | $ | — |
| | $ | 695,199 |
| Total assets | $ | 31,318 |
| | $ | 568,628 |
| | $ | — |
| | $ | 599,946 |
| | $ | 7,386 |
| | $ | 695,199 |
| | $ | — |
| | $ | 702,585 |
|
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