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Restructurings - Additional Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
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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 |

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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 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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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 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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