Net Income (Loss) per Share - Additional Information (Detail) - shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
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| Reconciliation Of Earning Per Share Statement [Line Items] | ||||
| Common stock shares excluded from computation of dilutive earnings per share | 295,000 | 943,000 | 852,000 | 957,000 |
| X | ||||||||||
- Definition Reconciliation Of Earning Per Share Statement [Line Items] No definition available.
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| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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