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Consolidated Statements of Changes in Equity - CAD ($)
$ in Thousands
Total
Retained earnings
Accumulated other comprehensive income
Capital stock
Contributed surplus
Equity at beginning of period at Sep. 30, 2020 $ 7,264,160 $ 4,703,642 $ 545,710 $ 1,761,873 $ 252,935
Net earnings 1,369,072 1,369,072      
Other comprehensive loss (214,130)   (214,130)    
Comprehensive income (loss) 1,154,942 1,369,072 (214,130)    
Share-based payment costs 45,592       45,592
Income tax impact associated with stock options 11,114       11,114
Exercise of stock options 61,054     73,827 (12,773)
Exercise of performance share units 0     7,150 (7,150)
Purchase for cancellation of Class A subordinate voting shares (1,519,226) (1,340,485)   (178,741)  
Purchase of Class A subordinate voting shares held in trusts (31,404)     (31,404)  
Equity at end of period at Sep. 30, 2021 6,986,232 4,732,229 331,580 1,632,705 289,718
Net earnings 1,466,142 1,466,142      
Other comprehensive loss (291,834)   (291,834)    
Comprehensive income (loss) 1,174,308 1,466,142 (291,834)    
Share-based payment costs 48,996       48,996
Income tax impact associated with stock options 460       460
Exercise of stock options 41,687     50,236 (8,549)
Exercise of performance share units 0     15,821 (15,821)
Purchase for cancellation of Class A subordinate voting shares (908,656) (773,366)   (135,290)  
Purchase of Class A subordinate voting shares held in trusts (70,303)     (70,303)  
Equity at end of period at Sep. 30, 2022 $ 7,272,724 $ 5,425,005 $ 39,746 $ 1,493,169 $ 314,804