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Fair Value Measurements (Tables)
 9 Months Ended
May 03, 2025
Fair Value Disclosures [Abstract]  
Schedule of Short-term and Long-term Investments Accounted for as Available-for-sale Measured at Fair Value on Recurring Basis
Our cash equivalents and investments, which were accounted for as available-for-sale securities and were measured at fair value on a recurring basis as of May 3, 2025, and August 3, 2024, were as follows:
 May 3, 2025August 3, 2024
(in thousands)Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Cash equivalents:
Money market funds$68,595 $— $— $68,595 $84,594 $— $— $84,594 
Investments:
U.S. Treasury securities10,478 — — 10,478 13,603 — — 13,603 
Corporate bonds (1)
— 110,364 — 110,364 — 67,527 — 67,527 
Asset backed securities— 6,742 — 6,742 — — — — 
Yankee bonds— 5,602 — 5,602 — — — — 
U.S. Agency securities— — — — — 2,976 — 2,976 
Total$79,073 $122,708 $— $201,781 $98,197 $70,503 $— $168,700 
(1) For May 3, 2025, corporate bonds includes both short-term investments with remaining maturities of less than one year, and long-term investments with remaining maturities over one year and less than five years.
Schedule of Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Available-for-sale Investments
The following table sets forth the amortized cost, gross unrealized gains and losses, and fair values of our investments, which are accounted for as available-for-sale securities, as of May 3, 2025, and August 3, 2024:
May 3, 2025August 3, 2024
(in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesFair ValueAmortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Investments:
U.S. Treasury securities$10,475 $3 $— $10,478 $13,588 $16 $(1)$13,603 
Corporate bonds110,387 19 (42)110,364 67,451 88 (12)67,527 
Asset backed securities6,740 2 — 6,742 — — — — 
Yankee bonds5,597 7 (2)5,602 — — — — 
U.S. Agency securities— — — — 2,973 3 — 2,976 
Total$133,199 $31 $(44)$133,186 $84,012 $107 $(13)$84,106