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Basis of Presentation - Additional Information (Detail) shares in Billions |  | 9 Months Ended |
--- | --- | --- | ---
Oct. 05, 2016 shares | Sep. 30, 2016 | Oct. 04, 2016 shares
Basis Of Presentation [Line Items] |  |  |
Reverse stock split ratio |  | 0.33 |
Subsequent Event [Member] |  |  |
Basis Of Presentation [Line Items] |  |  |
Reverse stock split ratio | 0.33 |  |
Common stock share outstanding | 0.4 |  | 1.3

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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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