Cover Page - shares	6 Months Ended
	Jun. 30, 2023	Jul. 31, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	000-22418
Entity Registrant Name	ITRON, INC.
Entity Incorporation, State or Country Code	WA
Entity Tax Identification Number	91-1011792
Entity Address, Address Line One	2111 N Molter Road
Entity Address, City or Town	Liberty Lake
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	99019
City Area Code	509
Local Phone Number	924-9900
Title of 12(b) Security	Common stock, no par value
Trading Symbol	ITRI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		45,460,228
Entity Central Index Key	0000780571
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false