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Share-based compensation - Summary of share options outstanding (Details)
 9 Months Ended
Sep. 30, 2022
shares
$ / shares
Sep. 30, 2021
shares
$ / shares
Dec. 31, 2021
shares
Dec. 31, 2020
shares
Disclosure of range of exercise prices of outstanding share options [line items]        
Number of options outstanding (in shares) 1,379,082 1,456,849 1,283,088 1,516,641
Weighted average remaining contractual life of options outstanding 6 years 2 months 8 days 7 years 2 months 1 day    
Number of options exercisable (in shares) 887,779 814,367    
0.0001 - 1.09        
Disclosure of range of exercise prices of outstanding share options [line items]        
Number of options outstanding (in shares) 784,368 784,368    
Weighted average remaining contractual life of options outstanding 4 years 8 months 15 days 5 years 8 months 12 days    
Number of options exercisable (in shares) 748,368 695,968    
0.0001 - 1.09 | Minimum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 0.0001 $ 0.0001    
0.0001 - 1.09 | Maximum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 1.09 $ 1.09    
8.86 - 11.06        
Disclosure of range of exercise prices of outstanding share options [line items]        
Number of options outstanding (in shares) 51,811 190,522    
Weighted average remaining contractual life of options outstanding 8 years 2 months 12 days 9 years 2 months 15 days    
Number of options exercisable (in shares) 21,084 59,784    
8.86 - 11.06 | Minimum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 8.86 $ 8.86    
8.86 - 11.06 | Maximum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 11.06 $ 11.06    
15.79 - 16.00        
Disclosure of range of exercise prices of outstanding share options [line items]        
Number of options outstanding (in shares) 268,499 341,701    
Weighted average remaining contractual life of options outstanding 7 years 10 days 8 years 10 days    
Number of options exercisable (in shares) 95,969 57,529    
15.79 - 16.00 | Minimum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 15.79 $ 15.79    
15.79 - 16.00 | Maximum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 16.00 $ 16.00    
26.43 - 64.19        
Disclosure of range of exercise prices of outstanding share options [line items]        
Number of options outstanding (in shares)   140,258    
Weighted average remaining contractual life of options outstanding   9 years 5 months 12 days    
Number of options exercisable (in shares)   1,086    
26.43 - 64.19 | Minimum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares   $ 26.43    
26.43 - 64.19 | Maximum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares   $ 69.48    
26.43 - 95.12        
Disclosure of range of exercise prices of outstanding share options [line items]        
Number of options outstanding (in shares) 274,404      
Weighted average remaining contractual life of options outstanding 9 years 3 months 3 days      
Number of options exercisable (in shares) 22,358      
26.43 - 95.12 | Minimum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 26.43      
26.43 - 95.12 | Maximum        
Disclosure of range of exercise prices of outstanding share options [line items]        
Exercise price range (in cad per share) | $ / shares $ 95.12