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BUSINESS DESCRIPTION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Inventories (Details) $ in Thousands | 12 Months Ended
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Jun. 30, 2021 USD ($) distributionCenter | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Number of distribution centers | distributionCenter | 2 |  |
Inventory write-off charge | $ 12,068 | $ 0 | $ 0
Inventory reserves | $ 11,800 | $ 1,200 |

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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314 + Details
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