Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (110,053)	$ (106,658)
Other comprehensive (loss) income:
Foreign currency translation adjustment	9	54
Comprehensive loss	$ (110,044)	$ (106,604)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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