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BUSINESS COMBINATIONS - Acquisition of Dynaflows (Details)
$ in Thousands
 12 Months Ended
Oct. 22, 2015
USD ($)
shares
Oct. 21, 2015
Dec. 31, 2019
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2018
USD ($)
Apr. 22, 2016
USD ($)
installment
Disclosure of detailed information about business combination [line items]            
Cash paid     $ 103,978 $ 21,300 $ 4,328  
Dynaflows S.A.            
Disclosure of detailed information about business combination [line items]            
Business acquisition, number of shares acquired (in shares) | shares 9,014          
Cash paid $ 1,402         $ 414
Number of installments | installment           2
Common stock, value, issued $ 868          
Common stock, shares, issued | shares 9,190          
Business combination, percentage of voting interest acquired, total 66.73%          
Dynaflows S.A.            
Disclosure of detailed information about business combination [line items]            
Proportion of ownership interest in associate   22.70%   22.70%    
Gain recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination     $ 625      
Dynaflows S.A. | Dynaflows S.A.            
Disclosure of detailed information about business combination [line items]            
Percentage ownership 38.50%          
Argentine peso (ARS) | Dynaflows S.A.            
Disclosure of detailed information about business combination [line items]            
Cash paid $ 13,316          
Common stock, value, issued $ 8,250