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Stockholders' Equity and Stock Compensation Plans (Tables) | 12 Months Ended
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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, 2020 | 539 |  |  | $ | 36.34 |  |  |  |  |
Exercised | (324) |  |  | 34.70 |  |  |  |  |
Forfeited | (1) |  |  | 40.80 |  |  |  |  |
Outstanding at October 3, 2021 | 214 |  |  | $ | 38.80 |  |  | 4.95 |  | $ | 24,149 |
Vested or expected to vest at October 3, 2021 | 214 |  |  | $ | 38.80 |  |  | 4.95 |  | $ | 24,149 |
Exercisable on October 3, 2021 | 179 |  |  | $ | 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:
| RSU |  | PSU
| 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, 2018 | 488 |  |  | $ | 39.56 |  |  | 323 |  |  | $ | 44.27 |
Granted | 179 |  |  | 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, 2019 | 470 |  |  | 50.42 |  |  | 384 |  |  | 53.67 |
Granted | 168 |  |  | 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, 2020 | 444 |  |  | 63.93 |  |  | 355 |  |  | 64.83 |
Granted | 118 |  |  | 122.02 |  | 58 |  |  | 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, 2021 | 381 |  |  | $ | 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 purchased | 124 |  |  | 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 yield | 1.0% |  | 1.0% |  | 1.0%
Expected stock price volatility | 47.9% |  | 26.5% |  | 26.7%
Risk-free rate of return, annual | 0.1% |  | 1.6% |  | 2.6%
Expected life (in years) | 1 |  | 1 |  | 1

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