v3.22.2.2
SHARE CAPITAL - Issued share capital and issuance of share capital (Details)
 12 Months Ended
Dec. 21, 2021
CAD ($)
shares
$ / shares
Dec. 20, 2021
$ / shares
Sep. 08, 2021
shares
Apr. 06, 2021
CAD ($)
shares
Mar. 10, 2021
CAD ($)
$ / shares
shares
Nov. 12, 2020
CAD ($)
$ / shares
shares
Aug. 31, 2022
CAD ($)
shares
Aug. 31, 2021
CAD ($)
shares
Nov. 12, 2021
CAD ($)
Aug. 31, 2020
shares
Disclosure of classes of share capital [line items]                    
Issued share capital (in shares) | shares             313,815,503 298,786,023    
Number of shares outstanding (in shares) | shares             313,815,503 298,786,023   194,511,061
Issued capital             $ 769,725,000 $ 730,803,000 $ 3,502,000  
Weighted average price (in CAD per share) | $ / shares $ 2.53                  
Share issuance costs           $ 4,305,000        
Shares issued related to business combination, net of issue costs (in shares) | shares     1,039,192 5,045,873            
Shares issued in a business combination       $ 22,000,000       21,935,000    
Legal fees and due diligence costs       620,000            
Acquisition costs recognized as an expense       555,000            
Acquisition costs capitalized to share issuance cost       $ 65,000            
Proceeds from issuing shares             0 $ 220,037,000    
Private placement, net of issue costs         $ 221,211,000          
Issuance of shares in the period (in shares) | shares         58,336,392     58,336,392    
Issuance of shares through private placement, price per share (cad per share) | $ / shares         $ 3.792          
Proportion of ownership interests held by non-controlling interests         19.90%          
Liabilities             69,049,000 $ 74,212,000    
Value allocated to common shares         $ 218,471,000          
Share issue costs allocated to derivative liabilities (Note 13)         1,174,000   0 803,000    
Number of common shares included in each unit (in shares) | shares           1        
Number of warrants issued (in shares) | shares           18,687,500        
EIC Share Purchase Agreement                    
Disclosure of classes of share capital [line items]                    
Share issuance costs             12,000      
Proceeds from issuing shares             3,500,000      
November 2020 Unit Offering                    
Disclosure of classes of share capital [line items]                    
Share issuance costs           $ 4,305,000        
Proceeds from issuing shares           69,143,000        
Value allocated to common shares           $ 56,249,000        
Increase in number of ordinary shares issued (in shares) | shares           37,375,000        
Units sold | shares           37,375,000        
Units issued in period, price per unit (in CAD per share) | $ / shares           $ 1.85        
Number of common shares included in each unit (in shares) | shares           1        
Cash commission           5.00%        
Cash commission, paid           $ 3,457,000        
November 2020 Unit Offering | Derivatives                    
Disclosure of classes of share capital [line items]                    
Share issuance costs           803,000        
Proceeds from issuing shares           12,894,000        
BAT                    
Disclosure of classes of share capital [line items]                    
Share issuance costs             18,000      
Proceeds from issuing shares             $ 6,352,000      
Increase in number of ordinary shares issued (in shares) | shares             2,659,716      
Issued capital                    
Disclosure of classes of share capital [line items]                    
Share issuance costs           $ 3,502,000        
Shares issued in a business combination               21,935,000    
Top Up Rights                    
Disclosure of classes of share capital [line items]                    
Liabilities         $ 2,740,000   $ 735,000 $ 2,508,000    
Laurentian                    
Disclosure of classes of share capital [line items]                    
Number of instruments or interests issued or issuable (in shares) | shares 10,896,442                  
Share consideration $ 26,000,000                  
Weighted average price (in CAD per share) | $ / shares $ 2.53 $ 2.39                
Share issuance costs $ 55,000                  
Shares issued related to business combination, net of issue costs (in shares) | shares             10,896,442      
Shares issued in a business combination             $ 27,513,000      
Legal fees and due diligence costs             1,039,000      
Acquisition costs recognized as an expense             984,000      
Laurentian | Issued capital                    
Disclosure of classes of share capital [line items]                    
Shares issued in a business combination             $ 27,513,000      
Laurentian | FAIR VALUE ADJUSTMENT                    
Disclosure of classes of share capital [line items]                    
Share consideration $ 27,568,000