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FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Maturity (Details) - CAD ($)
$ in Thousands
Mar. 31, 2024
Mar. 31, 2023
Less than 3 months | US Dollars to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 65,780 55,347
Average hedged rate 135.20% 133.30%
Less than 3 months | US Dollars to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 4,889  
Average hedged rate 133.90%  
Less than 3 months | Euros to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 24,842 23,602
Average hedged rate 147.90% 135.50%
Less than 3 months | Euros to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 3,513  
Average hedged rate 148.00%  
Less than 3 months | US Dollars to Euros | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 11,170 11,398
Average hedged rate 90.70% 92.90%
Less than 3 months | US Dollars to Euros | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 56 365
Average hedged rate 91.90% 95.50%
Less than 3 months | Euros to Czech Koruna | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 1,279  
Average hedged rate 2452.30%  
Less than 3 months | Euros to US Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount   1,300
Average hedged rate   114.50%
Less than 3 months | Euros to US Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 2,192 665
Average hedged rate 108.40% 108.80%
3 to 6 months | US Dollars to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 48,247 45,926
Average hedged rate 135.30% 134.10%
3 to 6 months | US Dollars to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
3 to 6 months | Euros to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 28,130 16,119
Average hedged rate 148.30% 136.90%
3 to 6 months | Euros to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 336  
Average hedged rate 147.30%  
3 to 6 months | US Dollars to Euros | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 5,224 15,567
Average hedged rate 92.80% 92.10%
3 to 6 months | US Dollars to Euros | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 98
Average hedged rate 0.00% 100.30%
3 to 6 months | Euros to Czech Koruna | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 877  
Average hedged rate 2486.60%  
3 to 6 months | Euros to US Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount   650
Average hedged rate   115.00%
3 to 6 months | Euros to US Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 3,208 204
Average hedged rate 108.80% 108.10%
6 to 9 months | US Dollars to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 42,539 31,114
Average hedged rate 135.10% 133.90%
6 to 9 months | US Dollars to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
6 to 9 months | Euros to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 12,056 12,456
Average hedged rate 149.50% 137.00%
6 to 9 months | Euros to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
6 to 9 months | US Dollars to Euros | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 2,198 10,423
Average hedged rate 90.50% 92.80%
6 to 9 months | US Dollars to Euros | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 0
Average hedged rate 0.00% 0.00%
6 to 9 months | Euros to Czech Koruna | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 584  
Average hedged rate 2495.80%  
6 to 9 months | Euros to US Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount   0
Average hedged rate   0.00%
6 to 9 months | Euros to US Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 3,317 0
Average hedged rate 109.30% 0.00%
9 to 12 months | US Dollars to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 24,381 21,616
Average hedged rate 136.00% 134.80%
9 to 12 months | US Dollars to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
9 to 12 months | Euros to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 8,768 4,396
Average hedged rate 151.20% 137.40%
9 to 12 months | Euros to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
9 to 12 months | US Dollars to Euros | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 4,400
Average hedged rate 0.00% 92.50%
9 to 12 months | US Dollars to Euros | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 0
Average hedged rate 0.00% 0.00%
9 to 12 months | Euros to Czech Koruna | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
9 to 12 months | Euros to US Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount   0
Average hedged rate   0.00%
9 to 12 months | Euros to US Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 2,046 828
Average hedged rate 109.80% 109.20%
1 to 2 years | US Dollars to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 47,408 39,542
Average hedged rate 136.30% 134.40%
1 to 2 years | US Dollars to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
1 to 2 years | Euros to Canadian Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 20,458 0
Average hedged rate 152.40% 0.00%
1 to 2 years | Euros to Canadian Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
1 to 2 years | US Dollars to Euros | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 3,228
Average hedged rate 0.00% 101.40%
1 to 2 years | US Dollars to Euros | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 56
Average hedged rate 0.00% 91.90%
1 to 2 years | Euros to Czech Koruna | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0  
Average hedged rate 0.00%  
1 to 2 years | Euros to US Dollars | Revenue hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount   0
Average hedged rate   0.00%
1 to 2 years | Euros to US Dollars | Purchase hedges    
Disclosure of detailed information about financial instruments [line items]    
Nominal amount 0 0
Average hedged rate 0.00% 0.00%