Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLDIATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) (Parenthetical)

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CONDENSED CONSOLDIATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) (Parenthetical) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Foreign currency translation adjustment, tax $ 86,000 $ 434,000 $ 272,000 $ 454,000
Services        
Cost of revenue, depreciation, depletion, amortization and accretion 26,898,000 17,651,000 51,473,000 33,489,000
Products        
Cost of revenue, depreciation, depletion, amortization and accretion 3,879,000 2,204,000 6,193,000 3,566,000
Related parties | Services        
Cost of revenue, depreciation, depletion, amortization and accretion $ 0 $ 0 $ 0 $ 0