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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, 2021 $ 6,986,232 $ 4,732,229 $ 331,580 $ 1,632,705 $ 289,718
Net earnings 1,466,142 1,466,142      
Other comprehensive income (291,834)   (291,834)    
Comprehensive income 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
Net earnings 1,631,249 1,631,249      
Other comprehensive income 119,229   119,229    
Comprehensive income 1,750,478 1,631,249 119,229    
Share-based payment costs 58,214       58,214
Income tax impact associated with stock options 14,423       14,423
Exercise of stock options 88,316     106,051 (17,735)
Exercise of performance share units (13,879) (2,885)   13,680 (24,674)
Purchase for cancellation of Class A subordinate voting shares (786,906) (725,538)   (61,368)  
Unrealized commitment to purchase Class A subordinate voting shares 1,379 1,276   103  
Purchase of Class A subordinate voting shares held in trusts (74,455)     (74,455)  
Equity at end of period at Sep. 30, 2023 $ 8,310,294 $ 6,329,107 $ 158,975 $ 1,477,180 $ 345,032