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Investments (Tables) | 12 Months Ended
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Jan. 28, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-Sale Debt Securities | All investments are classified as available-for-sale and include the following:
| January 28, 2023 |  | January 29, 2022 |  |
(in millions) | Cost |  | Unrealized Gain (Loss) |  | Fair Value |  | Cost |  | Unrealized Gain (Loss) |  | Fair Value |  |  |  |  |  |
US Treasury securities | $ | 5.8 |  |  | $ | (0.1) |  |  | $ | 5.7 |  |  | $ | 4.5 |  |  | $ | — |  |  | $ | 4.5 |  |  |  |  |  |  |
US government agency securities | 0.5 |  |  | — |  |  | 0.5 |  |  | 2.0 |  |  | — |  |  | 2.0 |  |  |  |  |  |  |
Corporate bonds and notes | 3.5 |  |  | (0.1) |  |  | 3.4 |  |  | 5.6 |  |  | 0.2 |  |  | 5.8 |  |  |  |  |  |  |
Total investments | $ | 9.8 |  |  | $ | (0.2) |  |  | $ | 9.6 |  |  | $ | 12.1 |  |  | $ | 0.2 |  |  | $ | 12.3 |  |  |  |  |  |  |
Investments in debt securities outstanding as of January 28, 2023 mature as follows:
(in millions) | Cost |  | Fair Value
Less than one year | $ | 2.9 |  |  | $ | 2.9 |
Year two through year five | 3.0 |  |  | 2.9 |
Year six through year ten | 3.9 |  |  | 3.8 |
Total investment in debt securities | $ | 9.8 |  |  | $ | 9.6 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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- References No definition available. + Details
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