Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues
Revenues	$ 614,576	$ 607,221
Cost of revenues
Cost of revenues	427,313	427,366
Gross profit	187,263	179,855
Operating expenses
Sales, general and administrative	92,715	154,414
Research and development	50,490	60,284
Amortization of intangible assets	15,973	17,740
Restructuring	7,262	87,865
Total operating expenses	166,440	320,303
Operating income (loss)	20,823	(140,448)
Other income (expense)
Interest income	328	661
Interest expense	(13,535)	(15,504)
Other income (expense), net	(1,644)	(1,167)
Total other income (expense)	(14,851)	(16,010)
Income (loss) before income taxes	5,972	(156,458)
Income tax benefit (provision)	(6,121)	11,188
Net loss	(149)	(145,270)
Net income attributable to noncontrolling interests	1,758	396
Net loss attributable to Itron, Inc.	$ (1,907)	$ (145,666)
Earnings (loss) per common share - Basic (in dollars per share)	$ (0.05)	$ (3.74)
Earnings (loss) per common share - Diluted (in dollars per share)	$ (0.05)	$ (3.74)
Weighted average common shares outstanding - Basic (in shares)	39,658	38,945
Weighted average common shares outstanding - Diluted (in shares)	39,658	38,945
Product [Member]
Revenues
Revenues	$ 544,850	$ 537,110
Cost of revenues
Cost of revenues	386,102	382,850
Service [Member]
Revenues
Revenues	69,726	70,111
Cost of revenues
Cost of revenues	$ 41,211	$ 44,516