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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of cash flows [abstract]      
Property and equipment, financed with trade payables $ 2,179 $ 4,316 $ 1,264
Payment for property and equipment 4,316 1,264 478
Advanced paid for property and equipment 1,862 3,301 2,861
Advances reclassified from other receivables 30,661    
Intangibles assets financed with trade payables   217 344
Payments related to intangible assets $ 217 $ 344 $ 7