Stock-based Compensation - Additional Information (Details) $ / shares in Units, shares in Thousands	3 Months Ended
Dec. 31, 2020 USD ($) shares / unit $ / shares shares	Dec. 28, 2019 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock Issuable per Restricted Stock Unit \| shares / unit	1
ESPP maximum contribution percentage	10.00%
ESPP maximum contribution amount by employee	$ 25,000
ESPP purchase price as a % of stock price	85.00%
Stock-based compensation	$ 46,088,000	$ 27,936,000
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 1,900,000	$ 1,500,000
TSR Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares \| shares	90
Vesting period	3 years
Weighted average fair value per share \| $ / shares	$ 124.04
Catch-Up Provision \| TSR Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares \| shares	179
Percentage of number of RSUs	100.00%
Catch-Up Provision \| Maximum Two Times \| TSR Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs	two times

ESPP purchase price as a percent of stock price.

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ESPP maximum contribution amount by employee

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ESPP maximum contribution percentage

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Common Stock Issuable per Restricted Stock Unit

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options number of RSUs.

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Share based compensation arrangement by share based payment award equity instruments other than options, percentage of number of RSUs.

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- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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