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Stockholders' Equity and Stock Compensation Plans (Tables)
 12 Months Ended
Oct. 03, 2021
Stockholders' Equity Note [Abstract]  
Schedule of the stock-based compensation and related income tax benefits
The following table presents our stock-based compensation and related income tax benefits:

 Fiscal Year Ended
 October 3,
2021		September 27,
2020		September 29,
2019
 (in thousands)
Total stock-based compensation$23,067 $19,424 $17,618 
Income tax benefit related to stock-based compensation(4,910)(4,318)(4,016)
Stock-based compensation, net of tax benefit$18,157 $15,106 $13,602 
Schedule of stock option activity
The following table presents our stock option activity for fiscal year ended October 3, 2021:
 Number of
Options
(in thousands)		Weighted-
Average
Exercise Price
per Share		Weighted-
Average
Remaining
Contractual
Term
(in years)		Aggregate
Intrinsic Value
(in thousands)
Outstanding on September 27, 2020539 $36.34   
Exercised(324)34.70   
Forfeited(1)40.80   
Outstanding at October 3, 2021214 $38.80 4.95$24,149 
Vested or expected to vest at October 3, 2021214 $38.80 4.95$24,149 
Exercisable on October 3, 2021179 $37.05 4.72$20,600 
Schedule of RSU and PSU activity
A summary of the RSU and PSU activity under our stock plans is as follows:
RSUPSU
 Number of
Shares
(in thousands)		Weighted-
Average
Grant Date
Fair Value
per Share		Number of
Shares
(in thousands)		Weighted-
Average
Grant Date
Fair Value
per Share
Nonvested balance at September 30, 2018488 $39.56 323 $44.27 
Granted179 66.26 90 80.41 
Vested(180)36.95 (108)31.63 
Adjustment (1)
— — 79 31.63 
Forfeited(17)48.56 — — 
Nonvested balance at September 29, 2019470 50.42 384 53.67 
Granted168 83.92 74 99.85 
Vested(178)46.87 (162)47.28 
Adjustment (1)
— — 64 48.36 
Forfeited(16)65.43 (5)83.98 
Nonvested balance at September 27, 2020444 63.93 355 64.83 
Granted118 122.0258 153.03 
Vested(167)59.64 (193)57.40 
Adjustment (1)
— — 99 57.40 
Forfeited(14)77.74 (1)74.05 
Nonvested balance at October 3, 2021381 $83.30 318 $82.96 
(1) For fiscal 2019, includes a payout adjustment of 79,465 PSUs due to the actual performance level achieved for PSUs granted in fiscal 2016 that vested during fiscal 2019. For fiscal 2020 includes a payout adjustment of 63,643 PSUs due to the actual performance level achieved for PSUs granted in fiscal 2017 that vested during fiscal 2020. For fiscal 2021 includes a payout adjustment of 99,214 PSUs due to the actual performance level achieved for PSUs granted in fiscal 2018 that vested during fiscal 2021.
Summary of shares purchased, weighted-average purchase price, and cash received, for shares purchased under the ESPP
The following table summarizes shares purchased, weighted-average purchase price, and cash received for shares purchased under the ESPP:
 Fiscal Year Ended
 October 3,
2021		September 27,
2020		September 29,
2019
 (in thousands, except for purchase price)
Shares purchased124 168 148 
Weighted-average purchase price per share$86.16 $51.77 $46.38 
Cash received from exercise of purchase rights$10,705 $8,715 $6,844 
Schedule of the assumptions used in the Black-Scholes option pricing model in estimating the grant date fair value of each award granted under the ESPP
The grant date fair value of each award granted under the ESPP was estimated using the Black-Scholes option pricing model with the following assumptions:
 Fiscal Year Ended
 October 3,
2021		September 27,
2020		September 29,
2019
Dividend yield1.0%1.0%1.0%
Expected stock price volatility47.9%26.5%26.7%
Risk-free rate of return, annual0.1%1.6%2.6%
Expected life (in years)111