CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE 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]
Net loss	$ (5,167)	$ (8,287)	$ (7,507)	$ (29,535)
Other comprehensive loss, net of taxes, as appropriate:
Foreign currency translation adjustments	(734)	(940)	(2,515)	30
Comprehensive net income (loss)	(5,901)	(9,227)	(10,022)	(29,505)
Comprehensive income attributable to noncontrolling interest	(52)	(335)	25	(447)
Comprehensive net income (loss) attributable to ION	$ (5,953)	$ (9,562)	$ (9,997)	$ (29,952)