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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - Schedule of Valuation and Qualifying Accounts - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017
SEC Schedule, 12-09, Allowance, Credit Loss [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Balance at Beginning of Year | $ 6,408 | $ 5,966 | $ 4,692
Recorded to Cost and Expense | (1,867) | (5,920) | 1,680
Accounts Written Off, net | 3,323 | 5,219 | (406)
Other | 18 | 1,143 | 0
Balance at End of Year | 7,881 | 6,408 | 5,966
Inventory valuation [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Balance at Beginning of Year | 26,065 | 16,419 | 15,338
Recorded to Cost and Expense | 2,774 | 1,924 | 851
Accounts Written Off, net | (2,614) | (306) | 203
Other | (56) | 8,028 | 27
Balance at End of Year | 26,169 | 26,065 | 16,419
Deferred tax valuation allowance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Balance at Beginning of Year | 8,520 | 17,466 | 12,832
Recorded to Cost and Expense | 2,302 | (8,946) | 4,634
Accounts Written Off, net | 0 | 0 | 0
Other | 0 | 0 | 0
Balance at End of Year | 10,823 | 8,520 | 17,466
Bad debts [Member] | SEC Schedule, 12-09, Allowance, Credit Loss [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Balance at Beginning of Year | 1,824 | 1,109 | 1,217
Recorded to Cost and Expense | 464 | (40) | 279
Accounts Written Off, net | (425) | 11 | (387)
Other | 18 | 744 | 0
Balance at End of Year | 1,881 | 1,824 | 1,109
Sales returns and allowances [Member] | SEC Schedule, 12-09, Allowance, Credit Loss [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Balance at Beginning of Year | 4,584 | 4,857 | 3,475
Recorded to Cost and Expense | (2,331) | (5,880) | 1,401
Accounts Written Off, net | 3,748 | 5,208 | (19)
Other | 0 | 399 | 0
Balance at End of Year | $ 6,000 | $ 4,584 | $ 4,857

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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