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Fair Value Measurements (Tables)
 9 Months Ended
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, 2025January 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 investments9,520 — — 9,520 12,715 — — 12,715 
Total financial assets$9,520 $— $— $9,520 $13,460 $— $745 $12,715 
Financial liabilities:
Foreign currency forward contracts164 — 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, 2025January 26, 2025
(in thousands)Fair Value HierarchyCarrying ValueFair ValueCarrying ValueFair 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 2391,504 398,302 — — 
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.