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Share-Based Compensation Plans - Summary of Stock Option Activity (Detail)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Oct. 02, 2020
USD ($)
$ / shares
shares
Number of Shares  
Beginning balance (in shares) | shares 376
Granted (in shares) | shares 0
Exercised (in shares) | shares (51)
Forfeited, canceled or expired (in shares) | shares 0
Ending balance (in shares) | shares 325
Weighted-Average Exercise Price per Share  
Beginning balance (in USD per share) | $ / shares $ 13.58
Granted (in USD per share) | $ / shares 0
Exercised (in USD per share) | $ / shares 3.70
Forfeited, canceled or expired (in USD per share) | $ / shares 0
Ending balance (in USD per share) | $ / shares $ 15.12
Options Outstanding, Additional Disclosures  
Weighted-Average Remaining Contractual Term (in Years) 6 years 11 months 26 days
Aggregate Intrinsic Value | $ $ 6,071
Options Vested and Expected to Vest  
Number of shares (in shares) | shares 325
Weighted-Average Exercise Price Per Share (in USD per share) | $ / shares $ 15.12
Weighted-Average Remaining Contractual Term (in Years) 6 years 11 months 26 days
Aggregate Intrinsic Value | $ $ 6,071
Options Exercisable  
Number of Shares (in shares) | shares 40
Weighted-Average Exercise Price per Share (in USD per share) | $ / shares $ 17.50
Weighted-Average Remaining Contractual Term (in Years) 3 years 6 months 25 days
Aggregate Intrinsic Value | $ $ 652