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Summary of Significant Accounting Policies - Fair value of financial instruments (Details) - USD ($) $ in Thousands | Aug. 03, 2024 | Feb. 03, 2024 | Jul. 29, 2023
--- | --- | --- | ---
Significant Accounting Policies [Line Items] |  |  |
Amortized Cost |  |  | $ 101,813
Gross Unrealized Gains |  |  | 0
Gross Unrealized Losses |  |  | 18
Fair Market Value |  |  | 101,795
Fair Value, Inputs, Level 1 |  |  |
Significant Accounting Policies [Line Items] |  |  |
Cash equivalents | $ 187,200 | $ 154,900 | 297,600
Short-term: |  |  |
Significant Accounting Policies [Line Items] |  |  |
Amortized Cost | 118,680 | 280,339 |
Gross Unrealized Gains | 0 | 0 |
Gross Unrealized Losses | 52 | 154 |
Fair Market Value | 118,628 | 280,185 |
Corporate bonds | Fair Value, Inputs, Level 2 |  |  |
Significant Accounting Policies [Line Items] |  |  |
Amortized Cost | 118,680 | 280,067 | 101,813
Gross Unrealized Gains | 0 | 0 | 0
Gross Unrealized Losses | 52 | 154 | 18
Fair Market Value | $ 118,628 | 279,913 | $ 101,795
Municipal bonds | Fair Value, Inputs, Level 2 |  |  |
Significant Accounting Policies [Line Items] |  |  |
Amortized Cost |  | 272 |
Gross Unrealized Gains |  | 0 |
Gross Unrealized Losses |  | 0 |
Fair Market Value |  | 272 |
Long-term: |  |  |
Significant Accounting Policies [Line Items] |  |  |
Amortized Cost |  | 7,791 |
Gross Unrealized Gains |  | 0 |
Gross Unrealized Losses |  | 8 |
Fair Market Value |  | 7,783 |
Corporate bonds | Fair Value, Inputs, Level 2 |  |  |
Significant Accounting Policies [Line Items] |  |  |
Amortized Cost |  | 7,791 |
Gross Unrealized Gains |  | 0 |
Gross Unrealized Losses |  | 8 |
Fair Market Value |  | $ 7,783 |

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