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Fair Value Measurements (Tables) | 9 Months Ended
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Oct. 26, 2025
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | The fair values of financial assets measured and recorded at fair value on a recurring basis were presented in the Balance Sheets as follows:
| October 26, 2025 |  | January 26, 2025
(in thousands) | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swap agreement | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 745 |  |  | $ | — |  |  | $ | 745 |  |  | $ | — |
Convertible debt investments | 9,520 |  |  | — |  |  | — |  |  | 9,520 |  |  | 12,715 |  |  | — |  |  | — |  |  | 12,715 |
Total financial assets | $ | 9,520 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,520 |  |  | $ | 13,460 |  |  | $ | — |  |  | $ | 745 |  |  | $ | 12,715 |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency forward contracts | 164 |  |  | — |  |  | 164 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total financial liabilities | $ | 164 |  |  | $ | — |  |  | $ | 164 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | The following table displays the carrying values and fair values of the 2027 Notes, 2028 Notes and 2030 Notes:
|  |  |  | October 26, 2025 |  | January 26, 2025
(in thousands) |  | Fair Value Hierarchy |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
1.625% convertible senior notes due 2027, net (1) |  | Level 2 |  | $ | 98,982 |  |  | $ | 187,666 |  |  | $ | 312,973 |  |  | $ | 647,943 |
4.00% convertible senior notes due 2028, net (2) |  | Level 2 |  | — |  |  | — |  |  | 60,352 |  |  | 225,771 |
0% convertible senior notes due 2030, net (3) |  | Level 2 |  | 391,504 |  |  | 398,302 |  |  | — |  |  | — |
Total long-term debt, net of debt issuance costs |  |  |  | $ | 490,486 |  |  | $ | 585,968 |  |  | $ | 373,325 |  |  | $ | 873,714 |
(1) The 1.625% convertible senior notes due 2027, net, are reflected net of $1.5 million and $6.5 million of unamortized debt issuance costs as of October 26, 2025 and January 26, 2025, respectively. (2) The 4.00% convertible senior notes due 2028, net, are reflected net of $1.6 million of unamortized debt issuance costs as of January 26, 2025. (3) The 0% convertible senior notes due 2030, net, are reflected net of $11.0 million of unamortized debt issuance costs as of October 26, 2025.

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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