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Stock-based Compensation - Restricted Stock Unit Activity (Details) - Restricted Stock Units $ / shares in Units, $ in Thousands	6 Months Ended
	Apr. 03, 2021 USD ($) $ / shares shares
Number of Units
Outstanding, beginning balance (in shares)	11,647,951
Granted (in shares)	2,613,732
Released (in shares)	(1,989,069)
Forfeited (in shares)	(607,864)
Outstanding, ending balance (in shares)	11,664,750
Weighted-Average Grant Date Fair Value
Outstanding, beginning balance (in usd per share) | $ / shares	$ 10.50
Outstanding, ending balance (in usd per share) | $ / shares	$ 11.87
Additional Information
Aggregate Intrinsic Value, beginning balance | $	$ 180,543
Aggregate Intrinsic Value, ending balance | $	$ 454,459

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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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 number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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-Publisher FASB
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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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