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Marketable Securities (Tables) | 9 Months Ended
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Oct. 29, 2022
Investments, Debt and Equity Securities [Abstract] |
Investments in Marketable Securities | The following table summarizes our investments in marketable securities at October 29, 2022, January 29, 2022 and October 30, 2021 (in thousands):
| October 29, 2022
| Cost or Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Estimated Fair Value
Commercial paper | $ | 24,789 |  |  | $ | 136 |  |  | $ | — |  |  | $ | 24,925 |
Fixed income securities | 5,060 |  |  | — |  |  | — |  |  | 5,060 |
Total marketable securities | $ | 29,849 |  |  | $ | 136 |  |  | $ | — |  |  | $ | 29,985 |
| January 29, 2022
| Cost or Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Estimated Fair Value
Commercial paper | $ | 64,235 |  |  | $ | 9 |  |  | $ | (11) |  |  | $ | 64,233 |
Fixed income securities | 32,794 |  |  | — |  |  | — |  |  | 32,794 |
Total marketable securities | $ | 97,029 |  |  | $ | 9 |  |  | $ | (11) |  |  | $ | 97,027 |
| October 30, 2021
| Cost or Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Estimated Fair Value
Commercial paper | $ | 64,261 |  |  | $ | 12 |  |  | $ | (1) |  |  | $ | 64,272 |
Fixed income securities | 31,965 |  |  | — |  |  | — |  |  | 31,965 |
Total marketable securities | $ | 96,226 |  |  | $ | 12 |  |  | $ | (1) |  |  | $ | 96,237 |
Gain (Loss) on Investments | The following table summarizes our gains on investments for commercial paper (in thousands):
| Thirteen Weeks Ended |  | Thirty-Nine Weeks Ended
| October 29, 2022 |  | October 30, 2021 |  | October 29, 2022 |  | October 30, 2021
Gains on investments | $ | 109 |  |  | $ | 19 |  |  | $ | 174 |  |  | $ | 91 |

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