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Segment Reporting - Reconciliation of Operating Income (Loss) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2016 | Jan. 31, 2015 | Jan. 31, 2014
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | $ (26,760) | $ (6,745) | $ 5,805
Equipment Leasing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | (27,156) | (8,766) | 699
Equipment Manufacturing and Sales [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | 279 | 2,178 | 5,055
Operating Segments [Member] | Equipment Leasing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | (27,156) | (8,766) | 699
Operating Segments [Member] | Equipment Manufacturing and Sales [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | 279 | 2,178 | 5,055
Intersegment Sales Elimination [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | $ 117 | $ (157) | $ 51

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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