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Other (Income) Expense, Net (Schedule of Other (Income) Expense, Net) (Parenthetical) (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Aug. 11, 2020 | Dec. 30, 2019 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
Net (gain) loss on sales of assets |  |  | $ 4,452 | $ 23,598 | $ (1,925)
Duarte Facility [Member] |  |  |  |  |
Net (gain) loss on sales of assets | $ 8,801 | $ 13,522 |  | 22,323 |
Loveland Campus [Member] |  |  |  |  |
Net (gain) loss on sales of assets |  |  |  | $ 2,330 |

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- Definition Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. + References Reference 1: 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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