Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Shareholders' Equity (Parenthetical)

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Consolidated Statements of Shareholders' Equity (Parenthetical)
$ in Thousands, $ in Millions
1 Months Ended 12 Months Ended
Feb. 29, 2016
USD ($)
Dec. 31, 2018
CAD ($)
Dec. 31, 2017
CAD ($)
Statement Of Stockholders Equity [Abstract]      
Stock issuance costs $ 0.8 $ 902 $ 93