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Asset Impairments (Details) - USD ($)	3 Months Ended	6 Months Ended
	Feb. 27, 2021	Feb. 27, 2021	Sep. 30, 2020
Asset Impairments [Abstract]
Inventory write-down	$ 30,091,000	$ 30,091,000
Prepaid purchase of PPE			$ 26,726,000
Impairment charge	$ 0	$ 26,726,000

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Amount, before deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

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