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Consolidated Balance Sheets (Parenthetical) - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Property, plant and equipment, accumulated depreciation	$ 302,682	$ 276,185
Common shares, issued (in shares)	31,011,831	27,502,912
Common shares, outstanding (in shares)	31,011,831	27,502,912
Treasury shares (in shares)	1,845,201	1,725,467

X

- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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