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Stock-based Compensation (Tables) | 3 Months Ended
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Jan. 02, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of stock option activity | The summary of the Company’s stock option activity is as follows:
| Number of Options |  | Weighted-Average Exercise Price |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value
|  |  |  |  | (In years) |  | (In thousands)
Outstanding at October 3, 2020 | 28,422,940 |  |  | $ | 12.03 |  |  | 5.6 |  | $ | 99,053 |
Granted | — |  |  | — |  |  |  |  |
Exercised | (6,173,671) |  |  | 11.26 |  |  |  |  |
Forfeited | (311,443) |  |  | 14.16 |  |  |  |  |
Outstanding at January 2, 2021 | 21,937,826 |  |  | $ | 12.21 |  |  | 5.5 |  | $ | 245,191 |
At January 2, 2021 |  |  |  |  |  |  |
Options exercisable | 18,512,188 |  |  | $ | 11.78 |  |  | 5.1 |  | $ | 214,871 |
Options vested and expected to vest | 21,533,731 |  |  | $ | 12.17 |  |  | 5.5 |  | $ | 241,587 |
Schedule of restricted stock unit activity | The summary of the Company’s unvested RSU activity is as follows:
| Number of Units |  | Weighted-Average Grant Date Fair Value |  | Aggregate Intrinsic Value
|  |  |  |  | (In thousands)
Unvested at October 3, 2020 | 11,647,951 |  |  | $ | 10.50 |  |  | $ | 180,543 |
Granted | 2,501,828 |  |  |  |  |
Vested | (901,667) |  |  |  |  |
Forfeited | (251,801) |  |  |  |  |
Unvested at January 2, 2021 | 12,996,311 |  |  | $ | 11.64 |  |  | $ | 303,984 |
Schedule of performance stock units activity | The summary of the Company’s unvested PSU activity is as follows:
| Number of Units |  | Weighted-Average Grant Date Fair Value |  | Aggregate Intrinsic Value
|  |  |  |  | (In thousands)
Unvested at October 3, 2020 | — |  |  | $ | — |  |  | $ | — |
Granted | 158,521 |  |  |  |  |
Vested | — |  |  |  |  |
Forfeited | — |  |  |  |  |
Unvested at January 2, 2021 | 158,521 |  |  | $ | 22.81 |  |  | $ | 3,708 |
Schedule of stock-based compensation expense | Total stock-based compensation expense by functional category was as follows:
| Three Months Ended
| January 2, 2021 |  | December 28, 2019
(In thousands) |  |  |
Cost of revenue | $ | 214 |  |  | $ | 282 |
Research and development | 6,258 |  |  | 5,116 |
Sales and marketing | 3,408 |  |  | 3,541 |
General and administrative | 4,964 |  |  | 4,265 |
Total stock-based compensation expense | $ | 14,844 |  |  | $ | 13,204 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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