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Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations, Cash Flow (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2021 | Jul. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Loss on disposal of discontinued operations |  |  | $ 0 | $ 1,859
Discontinued Operations, Held-for-sale |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Depreciation and amortization |  |  | 0 | 1,771
Gross profit from sale of lease pool equipment |  |  | 0 | (1,324)
(Recovery) provisions for doubtful accounts | $ (2) |  | (445) |
(Recovery) provisions for doubtful accounts |  | $ 470 |  | 470
Loss on disposal of discontinued operations | $ 0 | $ 1,859 | 0 | 1,859
Sale of used lease pool equipment |  |  | 0 | 1,988
Sale of assets held for sale |  |  | $ 1,245 | $ 0

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- Definition Disposal Group, Including Discontinued Operations, Proceeds From Sale Of Assets Held For Sale + References No definition available. + Details
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- Definition Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 + Details
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