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NATURE OF OPERATIONS AND SUMMARY OF MATERIAL ACCOUNTING POLICIES - Narrative (Details)
$ in Millions
 12 Months Ended
Mar. 31, 2024
CAD ($)
segment
Mar. 31, 2023
CAD ($)
Disclosure of detailed information about intangible assets [line items]    
Number of operating segments | segment 2  
Unrecognised share of profit of joint ventures $ 2.0 $ (0.1)
Cumulative unrecognised share of losses of joint ventures 10.3 12.3
Cumulative unrecognised share of comprehensive losses of joint ventures $ 9.3 $ 11.4
Simulators    
Disclosure of detailed information about intangible assets [line items]    
Average remaining depreciation period (in years) 11 years 2 months 12 days 11 years 7 months 6 days
Bottom of range    
Disclosure of detailed information about intangible assets [line items]    
Expected warranty claims period 1 year  
Bottom of range | Government royalties    
Disclosure of detailed information about intangible assets [line items]    
Discount rate for government royalty payments (in percent) 7.50%  
Top of range    
Disclosure of detailed information about intangible assets [line items]    
Expected warranty claims period 3 years  
Top of range | Government royalties    
Disclosure of detailed information about intangible assets [line items]    
Discount rate for government royalty payments (in percent) 8.50%  
Capitalized development costs    
Disclosure of detailed information about intangible assets [line items]    
Average remaining amortization period (in years) 6 years 9 months 18 days 6 years 3 months 18 days