Consolidated Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Total revenues	$ 2,502,470,000		$ 2,376,117,000		$ 2,018,197,000
Total cost of revenues	1,750,151,000		1,645,798,000		1,341,446,000
Gross profit	752,319,000		730,319,000		676,751,000
Operating expenses
Sales, general and administrative	346,872,000		423,210,000		325,264,000
Research and development	202,200,000		207,905,000		169,407,000
Amortization of intangible assets	64,286,000		71,713,000		20,785,000
Restructuring	6,278,000		77,183,000		6,418,000
Total operating expenses	619,636,000		780,011,000		521,874,000
Operating income (loss)	132,683,000		(49,692,000)		154,877,000
Other income (expense)
Interest income	1,849,000		2,153,000		2,126,000
Interest expense	(52,453,000)		(58,203,000)		(13,845,000)
Other income (expense), net	(9,047,000)		(3,409,000)		(8,583,000)
Total other income (expense)	(59,651,000)		(59,459,000)		(20,302,000)
Total income before income taxes	73,032,000		(109,151,000)		134,575,000
Income tax benefit (provision)	(20,617,000)		12,570,000		(74,326,000)
Net income (loss)	52,415,000		(96,581,000)		60,249,000
Net income attributable to noncontrolling interests	3,409,000		2,669,000		2,951,000
Net income (loss) attributable to Itron, Inc.	$ 49,006,000		$ (99,250,000)		$ 57,298,000
Earnings (loss) per common share - Basic (in dollars per share)	$ 1.24	[1]	$ (2.53)	[1]	$ 1.48
Earnings (loss) per common share - Diluted (in dollars per share)	$ 1.23	[1]	$ (2.53)	[1]	$ 1.45
Weighted average common shares outstanding - Basic (in shares)	39,556		39,244		38,655
Weighted average common shares outstanding - Diluted (in shares)	39,980		39,244		39,387
Product [Member]
Total revenues	$ 2,220,395,000		$ 2,095,458,000		$ 1,813,925,000
Total cost of revenues	1,587,710,000		1,476,498,000		1,204,127,000
Service [Member]
Total revenues	282,075,000		280,659,000		204,272,000
Total cost of revenues	$ 162,441,000		$ 169,300,000		$ 137,319,000

[1] The sum of the quarterly EPS data presented in the table may not equal the annual results due to rounding and the impact of dilutive securities on the annual versus the quarterly EPS calculations.