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Net Income (Loss) per Common Share - Additional Information (Detail) | Mar. 01, 2017 | Dec. 31, 2015 shares
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Net Income Loss Per Common Share [Line Items] |  |
Common shares loaned under the share lending arrangement, issued and outstanding |  | 1,800,000
Subsequent Event |  |
Net Income Loss Per Common Share [Line Items] |  |
Stock split of common stock | 0.2 |

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- Definition The number of shares outstanding as of the date of the statement of financial position in connection with an own-share lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing. + References No definition available. + Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 + Details
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