v3.22.4
Impairment charges on intangible assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Nov. 30, 2021
Nov. 11, 2021
Dec. 31, 2020
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets $ 5,214 $ 20,788     $ 3,764
Impairment on intangible assets (note 27) 13,017 0      
Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 15,517        
Impairment on intangible assets (note 27) 13,017        
Ending Balance 2,500   $ 15,517    
Technology | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 14,478        
Impairment on intangible assets (note 27) 11,978        
Ending Balance 2,500        
Acquired customer contracts and relationships | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 880        
Impairment on intangible assets (note 27) 880        
Ending Balance 0     $ 880  
Non-compete agreement | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 159        
Impairment on intangible assets (note 27) 159        
Ending Balance 0     $ 159  
Cost          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 79,227 78,677     59,855
Impairment on intangible assets (note 27) 0        
Cost | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 17,279        
Cost | Technology | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 15,976        
Cost | Acquired customer contracts and relationships | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 1,048        
Cost | Non-compete agreement | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets 255        
Accumulated amortization          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets (74,013) $ (57,889)     $ (56,091)
Impairment on intangible assets (note 27) 13,017        
Accumulated amortization | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets (1,762)        
Accumulated amortization | Technology | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets (1,498)        
Accumulated amortization | Acquired customer contracts and relationships | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets (168)        
Accumulated amortization | Non-compete agreement | Ballard Motive Solutions          
Impairment of Assets and Intangible Assets [Line Items]          
Intangible assets $ (96)