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Net Income (Loss) Per Common Share - Schedule of Potential Dilutive Common Shares (Parenthetical) (Detail) | Sep. 30, 2017 $ / shares
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Series B Redeemable Convertible Preferred Stock [Member] |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |
Conversion ceiling price of common stock | $ 2.25

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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