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Consolidated Balance Sheets (Parenthetical) - CAD CAD in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Statement of Financial Position [Abstract] |  |
Total capital assets, accumulated depreciation | CAD 188,398 | CAD 173,537
Common shares, authorized | unlimited | unlimited
Common Stock, Shares, Issued | 33,150,281 | 34,923,916
Common Stock, Shares, Outstanding | 33,150,281 | 34,923,916

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