Inventories - Narrative (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Inventory [Line Items] | ||||
| Proceeds from federal relief grants | $ 15,597,000,000 | $ 4,629,000 | $ 15,597,000 | |
| Proceeds received from insurance relating to property and casualty damage claims | $ 486,000,000 | 486,000 | ||
| Property and Casualty Claims | ||||
| Inventory [Line Items] | ||||
| Insurance proceeds received | $ 477,000 | |||
| Crop Claims | ||||
| Inventory [Line Items] | ||||
| Insurance proceeds received | $ 8,952,000 | |||
| Year-End Adjustment | ||||
| Inventory [Line Items] | ||||
| Inventory casualty loss | $ 808,000 | |||
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- Definition Proceeds From Federal Relief Grants No definition available.
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- Definition Proceeds Received from Insurance Relating to Property and Casualty Damage Claims No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of damages awarded to the plaintiff in the legal matter. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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