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Background and Basis of Presentation - Additional Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2020 USD ($) Segment | Mar. 31, 2019 USD ($)
Background And Basis Of Presentation [Line Items] |  |  |  |
Number of operating segments | Segment |  |  | 3 |
Gain on lease settlement, net | $ 837 | $ 0 | $ 223 | $ 0
ApplianceSmart Inc |  |  |  |
Background And Basis Of Presentation [Line Items] |  |  |  |
Gain on lease settlement, net | 837 |  | 837 |
Increase in lease liability | 837 |  |  |
Impairment charges |  |  | 614 |
Increase in right of use assets |  |  | 614 |
Reclassified portion of short term lease obligation to long term lease obligations |  |  | 133 |
Decrease in provision for income taxes |  |  | 52 |
As Previously Reported |  |  |  |
Background And Basis Of Presentation [Line Items] |  |  |  |
Gain on lease settlement, net |  |  | 241 |
As Previously Reported | ApplianceSmart Inc |  |  |  |
Background And Basis Of Presentation [Line Items] |  |  |  |
Gain on lease settlement, net | $ 1,448 |  |  |
Impairment charges |  |  | $ 1,207 |

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2611-110228 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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