Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net loss	$ (13,575)		$ (28,813)
Comprehensive income (loss):
Foreign currency translation gain (loss)	(8,927)		(2,205)
Total comprehensive loss	$ (22,502)		$ (31,018)
Predecessor [Member]
Net loss		$ (40,547)		$ (165,362)
Comprehensive income (loss):
Foreign currency translation gain (loss)		16,225		22,791
Total comprehensive loss		$ (24,322)		$ (142,571)