Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (10,023)	$ (25,263)	$ (33,049)	$ (60,299)
Other comprehensive loss, net of taxes, as appropriate:
Foreign currency translation adjustments	1,199	(2,737)	1,716	(4,199)
Comprehensive net loss	(8,824)	(28,000)	(31,333)	(64,498)
Comprehensive income attributable to noncontrolling interest	(418)	(79)	(734)	(57)
Comprehensive net loss attributable to ION	$ (9,242)	$ (28,079)	$ (32,067)	$ (64,555)