Net Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 31, 2017 |
Oct. 31, 2016 |
Jul. 31, 2016 |
Apr. 30, 2016 |
Jan. 31, 2016 |
Oct. 31, 2015 |
Jul. 31, 2015 |
Apr. 30, 2015 |
Jan. 31, 2017 |
Jan. 31, 2016 |
Jan. 31, 2015 |
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| Earnings Per Share [Abstract] | |||||||||||
| Net loss from continuing operations | $ (71,249) | $ (47,697) | $ (27,489) | ||||||||
| Net income from discontinued operations | 5 | ||||||||||
| Net loss | $ (27,376) | $ (8,082) | $ (26,884) | $ (8,907) | $ (22,280) | $ (10,565) | $ (5,027) | $ (9,825) | $ (71,249) | $ (47,697) | $ (27,484) |
| Weighted average shares used in computing net loss per share-basic and diluted | 34,970 | 33,506 | 32,772 | ||||||||
| Net loss per share-basic and diluted: | |||||||||||
| Loss from continuing operations | $ (2.04) | $ (1.42) | $ (0.84) | ||||||||
| Income from discontinued operations | 0.00 | ||||||||||
| Net loss per share-basic and diluted | $ (2.04) | $ (1.42) | $ (0.84) | ||||||||
| X | ||||||||||
- References No definition available.
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares. No definition available.
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- Definition Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same. No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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