Fair Value Measurements - Fair Value of Available-for-Sale Securities by Contractual Maturity (Details) - USD ($) $ in Thousands |
Apr. 29, 2023 |
Jul. 30, 2022 |
|---|---|---|
| Debt Securities, Available-for-sale [Line Items] | ||
| One Year or Less | $ 50,139 | $ 82,049 |
| Over One Year Through Five Years | 0 | 17,713 |
| Over Five Years | 0 | 0 |
| Total | 50,139 | 99,762 |
| U.S. Treasury securities | ||
| Debt Securities, Available-for-sale [Line Items] | ||
| One Year or Less | 30,371 | 35,473 |
| Over One Year Through Five Years | 0 | 6,787 |
| Over Five Years | 0 | 0 |
| Total | 30,371 | 42,260 |
| Commercial paper | ||
| Debt Securities, Available-for-sale [Line Items] | ||
| One Year or Less | 0 | 2,985 |
| Over One Year Through Five Years | 0 | 0 |
| Over Five Years | 0 | 0 |
| Total | 0 | 2,985 |
| Corporate bonds | ||
| Debt Securities, Available-for-sale [Line Items] | ||
| One Year or Less | 19,768 | 43,591 |
| Over One Year Through Five Years | 0 | 10,926 |
| Over Five Years | 0 | 0 |
| Total | $ 19,768 | $ 54,517 |