Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (25,058)	$ 18,177	$ (78,383)	$ 38,145
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	13,988	(16,345)	(147)	(13,544)
Foreign currency translation adjustment reclassified to net income on sale of business	(14)	2,443	52,074	2,443
Net unrealized gain (loss) on derivative instruments, designated as cash flow hedges	(1)	695	(2,157)	(804)
Pension benefit obligation adjustment	(159)	502	889	1,156
Total other comprehensive income (loss), net of tax	13,814	(12,705)	50,659	(10,749)
Total comprehensive income (loss), net of tax	(11,244)	5,472	(27,724)	27,396
Comprehensive income attributable to noncontrolling interests, net of tax	299	1,330	1,092	3,759
Comprehensive income (loss) attributable to Itron, Inc.	$ (11,543)	$ 4,142	$ (28,816)	$ 23,637