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Impairment Charges - Additional Information (Detail) - USD ($) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 01, 2021 | Sep. 24, 2020 | Mar. 26, 2020 | Sep. 24, 2020
Impairment Charge [Line Items] |  |  |  |
Impaired Asset Fair Value |  | $ 7,221,000 | $ 13,686,000 | $ 7,221,000
Trade names |  |  |  |
Impairment Charge [Line Items] |  |  |  |
Impaired Asset Fair Value |  | $ 7,300,000 |  | $ 7,300,000
Royalty rate (as a percent) |  | 1.00% | 1.00% | 1.00%
Discount rate (as a percent) |  | 17.00% | 17.00% |
Impairment charge |  |  |  | $ 2,200,000
Fair Value, Inputs, Level 3 [Member] |  |  |  |
Impairment Charge [Line Items] |  |  |  |
Impairment of Fixed Assets | $ 3,732,000 | $ 765,000 | $ 6,512,000 |
Impaired Asset Fair Value | $ 10,200,000 |  |  |
Fair Value, Inputs, Level 3 [Member] | Trade names |  |  |  |
Impairment Charge [Line Items] |  |  |  |
Impairment charge |  |  | $ 2,200,000 |

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- Definition Impairment Charge [Line Items] + References No definition available. + Details
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- Definition Percentage of discount rate used as an assumption to estimate the fair value of intangible asset. + References No definition available. + Details
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- Definition Percentage of royalty rate used as an assumption to estimate the fair value of intangible asset. + References No definition available. + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2420-110228 + Details
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