Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (24,827)	$ (49,133)
Other comprehensive income:
Foreign Currency Translation Adjustments	6,246	22,176
Total other comprehensive income	6,246	22,176
Comprehensive Income (Loss)	$ (18,581)	$ (26,957)