CONDENSED CONSOLDIATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Foreign currency translation adjustment, tax	$ (150,000)	$ 92,000	$ 211,000	$ 182,000
Services
Cost of revenue, depreciation, depletion, amortization and accretion	21,750,000	25,597,000	45,305,000	51,280,000
Products
Cost of revenue, depreciation, depletion, amortization and accretion	2,346,000	4,525,000	4,654,000	7,395,000
Related parties | Services
Cost of revenue, depreciation, depletion, amortization and accretion	$ 0	$ 0	$ 0	$ 0