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Equity Plans (Tables)
12 Months Ended
Aug. 26, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Summary of Share Options
 Shares
Weighted
Average
Exercise Price
Per Share
Weighted
Average
Remaining Contractual
Term (in years)
Aggregate
Intrinsic
Value
Outstanding as of August 27, 20213,778 $14.95 6.33$33,602 
Granted— $— 
Exercised(443)$12.75 
Forfeited and cancelled(61)$11.04 
Outstanding as of August 26, 20223,274 $15.32 5.22$14,429 
Exercisable as of August 26, 20222,776$15.97 4.77$10,673 
Assumptions Used to Value Stock Options
Year endedAugust 27,
2021
August 28,
2020
Share options granted500 1,926 
Weighted average grant-date fair value per share$6.65 $5.73 
Average expected term in years6.256.25
Weighted-average expected volatility52.07 %49.18 %
Weighted-average risk-free interest rate0.49 %1.32 %
Expected dividend yield
Schedule of Share Based Compensation Expense Allocation
Year endedAugust 26,
2022
August 27,
2021
August 28,
2020
Share-based compensation expense by caption:
Cost of sales$6,740 $4,593 $3,022 
Research and development6,377 4,429 3,069 
Selling, general and administrative27,002 24,855 12,625 
 $40,119 $33,877 $18,716 
Restricted Awards  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Schedule of Outstanding Restricted Share Awards and Restricted Share Units Awards
 Shares
Weighted
Average
Grant Date
Fair Value
Per Share
Aggregate
Intrinsic
Value
Outstanding as of August 27, 20215,637 $18.08 $134,425 
Granted1,642 $25.73 
Vested(2,057)$18.10 
Forfeited and cancelled(344)$20.54 
Outstanding as of August 26, 20224,878 $20.47 $94,052 
Summary of Aggregate Restricted Award Activity and Assumptions
Year endedAugust 26,
2022
August 27,
2021
August 28,
2020
Awards granted1,642 4,6511,680
Weighted average grant-date fair value per share$25.73 $19.59 $12.21 
Aggregate vesting-date fair value of shares vested$49,821 $21,381 $12,464