Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Document Period End Date			Jun. 30, 2020
Net income (loss)	$ (24,788)		$ (392,386)	$ (60,009)
Other Comprehensive Income (Loss):
Foreign currency translation adjustments	10,629	$ 203	(59,696)	6,449
Total other comprehensive income (loss)	10,629	203	(59,696)	6,449
Comprehensive income (loss)	$ (14,159)	$ (34,979)	$ (452,082)	$ (53,560)