Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Service revenues	$ 65,914	$ 53,515	$ 104,500	$ 96,918
Product revenues	12,708	13,159	32,939	47,129
Total net revenues	78,622	66,674	137,439	144,047
Cost of services	40,694	47,883	93,706	132,234
Cost of products	6,163	7,683	16,045	26,628
Gross profit (loss)	31,765	11,108	27,688	(14,815)
Operating expenses:
Research, development and engineering	4,231	6,537	14,601	21,496
Marketing and sales	4,680	6,904	13,374	23,375
General, administrative and other operating expenses	10,990	10,541	34,566	40,566
Total operating expenses	19,901	23,982	62,541	85,437
Income (loss) from operations	11,864	(12,874)	(34,853)	(100,252)
Interest expense, net	(4,607)	(4,854)	(14,043)	(14,086)
Other income (expense), net	(2,027)	(346)	(3,624)	98,035
Income (loss) before income taxes	5,230	(18,074)	(52,520)	(16,303)
Income tax expense, net	3,316	2,082	5,865	3,597
Net income (loss)	1,914	(20,156)	(58,385)	(19,900)
Net (income) loss attributable to noncontrolling interests	(215)	(227)	(272)	322
Net income (loss) attributable to ION	$ 1,699	$ (20,383)	$ (58,657)	$ (19,578)
Net income (loss) per share:
Basic, in dollars per share	$ 0.14	$ (1.86)	$ (5.21)	$ (1.78)
Diluted, in dollars per share	$ 0.14	$ (1.86)	$ (5.21)	$ (1.78)
Weighted average number of common shares outstanding:
Basic, in shares	11,786	10,984	11,269	10,978
Diluted, in shares	11,907	10,984	11,269	10,978