Share capital - Unit plans and changes (Details)	6 Months Ended
	May 31, 2024 shares
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Balance - beginning of the period	1,610,638
Granted	5,324,992
Vested/Converted	(4,617,291)
Balance - end of the period	2,318,339
DSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Balance - beginning of the period	2,428,701
Granted	383,489
Balance - end of the period	2,812,190