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Consolidated Balance Sheets (Parenthetical) (USD $)
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Dec. 31, 2014
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Dec. 31, 2013
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| Statement of Financial Position [Abstract] | ||
| Common shares, par value | $ 0.001us-gaap_CommonStockParOrStatedValuePerShare | $ 0.001us-gaap_CommonStockParOrStatedValuePerShare |
| Common shares, shares authorized | 1,000,000,000us-gaap_CommonStockSharesAuthorized | 1,000,000,000us-gaap_CommonStockSharesAuthorized |
| Common shares, shares outstanding | 92,200,000us-gaap_CommonStockSharesOutstanding | 101,100,000us-gaap_CommonStockSharesOutstanding |
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- Definition
Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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