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Common Shares - Shareholders Rights Plan (Details) - $ / shares | Dec. 31, 2016 | Jul. 16, 2012
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Shareholder Rights Plan |  |
Par value (in dollars per share) | $ 0.001 |
Right To Purchase Series Junior Participating Preferred Shares1 |  |
Shareholder Rights Plan |  |
Number of purchase rights issued per Common Share |  | $ 1

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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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