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MARKETING AGREEMENT - Additional Information (Details) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 01, 2019 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
Schedule of Costs Related to Purchase Obligations [Line Items] |  |  |  |  |
Net sales |  |  | $ 4,925,000,000 | $ 4,131,600,000 | $ 3,156,000,000
Restated Marketing Agreement |  |  |  |  |
Schedule of Costs Related to Purchase Obligations [Line Items] |  |  |  |  |
Commission threshold, percentage of program earnings | 50.00% |  |  |  |
Commission threshold | $ 40,000,000.0 |  |  |  |
Annual contribution payment | 18,000,000.0 |  |  |  |
Third Restated Agreement |  |  |  |  |
Schedule of Costs Related to Purchase Obligations [Line Items] |  |  |  |  |
Minimum EBIT to avoid reduction of contribution payment | 36,000,000.0 |  |  |  |
Net sales |  | $ 20,000,000.0 |  |  |
Minimum EBIT | 50,000,000.0 |  |  |  |
Minimum termination fee payable | 175,000,000.0 |  |  |  |
Brand decommissioning event payable | $ 375,000,000.0 |  |  |  |
Minimum termination fee payable, multiple of average program earnings, prior 3 years | 4 |  |  |  |
Minimum termination fee payable, threshold | $ 186,400,000 |  |  |  |
Brand Extension Asset Purchase Agreement |  |  |  |  |
Schedule of Costs Related to Purchase Obligations [Line Items] |  |  |  |  |
Proceeds from sale of productive assets | 112,000,000.0 |  |  |  |
Disposal group, inventory | 3,500,000 |  |  |  |
Disposal group, assets | $ 111,700,000 |  |  |  |

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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