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Net (Loss) Income Per Common Share - Calculation of Diluted Net (Loss) Income Per Share (Parenthetical) (Detail) - shares | 3 Months Ended | 9 Months Ended
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Sep. 30, 2015 | Sep. 30, 2015
Earnings Per Share [Abstract] |  |
Dilutive effects from equity instruments | 0 | 0

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- Definition Additional shared included in the calculation of diluted EPS as a result of the potentially dilutive effect of equity forward arrangements using the reverse treasury stock method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e2366-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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