Share capital - Unit plans and changes (Details)	6 Months Ended
	May 31, 2025 shares
Restricted Stock Units (RSUs)
Share capital
Balance - beginning of the period	2,793,339
Granted	1,811,096
Vested/Converted	(2,806,097)
Balance - end of the period	1,798,338
DSUs
Share capital
Balance - beginning of the period	3,133,412
Granted	72,943
Balance - end of the period	3,206,355
Fixed DSUs
Share capital
Granted	237,533
Balance - end of the period	237,533