XML 89 R67.htm IDEA: XBRL DOCUMENT v3.20.4
Investments in affiliates and joint ventures - Statements of Operations and Comprehensive Income (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]    
Gross profit $ 94,382 $ 96,412
Net income and comprehensive income 49,208 37,133
Equity method investments    
Schedule of Equity Method Investments [Line Items]    
Revenues 59,944 24,689
Gross profit 9,833 5,148
Income before taxes 7,717 3,782
Net income and comprehensive income $ 5,942 $ 2,780