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Fair Value Measurements (Tables) | 12 Months Ended
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Jan. 26, 2025
Fair Value Disclosures [Abstract] |
Schedule of financial assets and liabilities measured and recorded at fair value on a recurring basis | The fair values of financial assets and liabilities measured and recorded at fair value on a recurring basis were presented in the Balance Sheets as follows:
| January 26, 2025 |  | January 28, 2024
(in thousands) | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swap agreement | $ | 745 |  |  | $ | — |  |  | $ | 745 |  |  | $ | — |  |  | $ | 7,321 |  |  | $ | — |  |  | $ | 7,321 |  |  | $ | — |
Convertible debt investments | 12,715 |  |  | — |  |  | — |  |  | 12,715 |  |  | 12,117 |  |  | — |  |  | — |  |  | 12,117 |
Foreign currency forward contracts | — |  |  | — |  |  | — |  |  | — |  |  | 169 |  |  | — |  |  | 169 |  |  | — |
Total financial assets | $ | 13,460 |  |  | $ | — |  |  | $ | 745 |  |  | $ | 12,715 |  |  | $ | 19,607 |  |  | $ | — |  |  | $ | 7,490 |  |  | $ | 12,117 |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swap agreement | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 7 |  |  | $ | — |  |  | $ | 7 |  |  | $ | — |
Total financial liabilities | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 7 |  |  | $ | — |  |  | $ | 7 |  |  | $ | — |
Fair Value, Assets Measured on Recurring Basis | The following table presents a reconciliation of the changes in convertible debt investments in the fiscal year ended January 26, 2025:
(in thousands) |
Balance at January 28, 2024 | $ | 12,117 |
Sales | (222) |
Interest accrued | 820 |
Balance at January 26, 2025 | $ | 12,715 |
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 and 2028 Notes:
|  |  |  | January 26, 2025 |  | January 28, 2024
(in thousands) |  | Fair Value Hierarchy |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
1.625% convertible senior notes due 2027, net (1) |  | Level 2 |  | $ | 312,973 |  |  | $ | 647,943 |  |  | $ | 310,563 |  |  | $ | 262,571 |
4.00% convertible senior notes due 2028, net (2) |  | Level 2 |  | 60,352 |  |  | 225,771 |  |  | 241,829 |  |  | 313,299 |
Total convertible notes, net of debt issuance costs |  |  |  | $ | 373,325 |  |  | $ | 873,714 |  |  | $ | 552,392 |  |  | $ | 575,870 |
(1) The 1.625% convertible senior notes due 2027, net are reflected net of $6.5 million and $8.9 million of unamortized debt issuance costs as of January 26, 2025 and January 28, 2024, respectively. (2) The 4.00% convertible senior notes due 2028, net are reflected net of $1.6 million and $8.2 million of unamortized debt issuance costs as of January 26, 2025 and January 28, 2024, respectively.

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class 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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- 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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