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Restructurings - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2020 USD ($) facility employee	Jul. 03, 2020 USD ($)	Jul. 02, 2021 USD ($)	Jul. 03, 2020 USD ($)
Restructuring Reserve [Roll Forward]
Restructuring and Related Cost, Incurred Cost		$ (554)		$ 1,494
2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			$ 261
Restructuring and Related Cost, Incurred Cost			0
Restructuring Reserve, Accrual Adjustment			(24)
Restructuring Reserve, Ending Balance	$ 261		237
Number of positions eliminated | employee	250
Number of facilities | facility	6
Employee related expenses
Restructuring Reserve [Roll Forward]
Restructuring and Related Cost, Incurred Cost		(761)		787
Employee related expenses | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			235
Restructuring and Related Cost, Incurred Cost			0
Restructuring Reserve, Accrual Adjustment			2
Restructuring Reserve, Ending Balance	$ 235		237
Facility related expenses
Restructuring Reserve [Roll Forward]
Restructuring and Related Cost, Incurred Cost		$ 207		$ 707
Facility related expenses | 2019 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			26
Restructuring and Related Cost, Incurred Cost			0
Restructuring Reserve, Accrual Adjustment			(26)
Restructuring Reserve, Ending Balance	$ 26		$ 0

X

- Definition

Restructuring And Related Cost, Number Of Facilities

+ References

No definition available.

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- Definition

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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-Publisher FASB
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-Topic 420
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ References

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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- Definition

Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

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-Publisher FASB
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-Topic 420
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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