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Business combinations - Additional information (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Nov. 23, 2020
USD ($)
Oct. 30, 2020
USD ($)
shares
$ / shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Oct. 30, 2020
$ / shares
Disclosure of detailed information about business combination [line items]          
Repayments of borrowings $ 278   $ 299 $ 14,055  
forMetris          
Disclosure of detailed information about business combination [line items]          
Total consideration   $ 6,417      
Paid in cash   $ 2,624      
Number of shares issued | shares   29,024      
Paid in Common Shares of the Company   $ 1,163      
Fair value price per share (in cad per share) | (per share)   $ 40.07     $ 53.38
Deferred cash consideration payable   $ 2,630      
Deferred cash consideration payable, performance period   3 years      
Contingent consideration     $ 2,630    
Earn-out payments, period   3 years