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Cash and cash equivalents (Tables)
12 Months Ended
Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]  
Schedule of Cash and Cash Equivalents
 
2019
 
2018
Cash at bank and on hand
124,701

 
197,544

Short-term bank deposits
165,575

 
76,091

 
290,276

 
273,635