Stock-based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Jan. 02, 2021	Oct. 03, 2020
Number of Options
Beginning balance (in shares)	28,422,940
Granted (in shares)	0
Exercised (in shares)	(6,173,671)
Forfeited (in shares)	(311,443)
Ending balance (in shares)	21,937,826	28,422,940
Options exercisable (in shares)	18,512,188
Options vested and expected to vest (in shares)	21,533,731
Weighted-Average Exercise Price
Beginning balance (in USD per share)	$ 12.03
Granted (in USD per share)	0
Exercised (in USD per share)	11.26
Forfeited (in USD per share)	14.16
Ending balance (in USD per share)	12.21	$ 12.03
Option exercisable - Weighted Average Exercise Price (in USD per share)	11.78
Options vested and expected to vest - Weighted Average Exercise Price (in USD per share)	$ 12.17
Additional Information
Weighted Average Remaining Contractual Term	5 years 6 months	5 years 7 months 6 days
Option exercisable - Weighted Average Remaining Contractual Term	5 years 1 month 6 days
Options vested and expected to vest - Weighted Average Remaining Contractual Term	5 years 6 months
Aggregate Intrinsic Value	$ 245,191	$ 99,053
Options exercisable - Weighted Average Intrinsic Value	214,871
Options vested and expected to vest - Weighted Average Intrinsic Value	$ 241,587

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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