Debt - Credit Facility Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Oct. 18, 2019
Debt Instrument [Line Items]
Debt instrument, face amount			$ 1,200,000,000
Line of credit facility, maximum borrowing capacity			500,000,000
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.00%
Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 500,000,000	$ 500,000,000
Letters of credit outstanding, amount	52,415,000	59,059,000
Line of credit facility, remaining borrowing capacity	$ 247,600,000
Fed Funds Effective Rate Overnight Index Swap Rate [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Alternate base rate (3) [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Debt instrument, description of variable rate basis	one-month LIBOR
London Interbank Offered Rate
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis	the LIBOR rate
EURIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis	EURIBOR rate
Alternate base rate [Member]
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis	Alternate Base Rate
Alternate base rate (1) [Member]
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis	the prime rate
Alternate base rate (2) [Member]
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis	the Federal Reserve effective rate
USD Denominated Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			650,000,000
Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			300,000,000
Letters of credit outstanding, amount	$ 52,400,000
Swingline sub-facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 50,000,000
Multicurrency revolving line of credit	0
Line of Credit [Member]
Debt Instrument [Line Items]
Multicurrency revolving line of credit	0	0
Line of credit facility, remaining borrowing capacity	$ 447,585,000	$ 440,941,000
Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, collateral	All obligations under the 2018 credit facility are guaranteed by Itron, Inc. and material U.S. domestic subsidiaries and are secured by a pledge of substantially all of the assets of Itron, Inc. and material U.S. domestic subsidiaries. This includes a pledge of 100% of the capital stock of material U.S. domestic subsidiaries and up to 66% of the voting stock (100% of the non-voting stock) of first-tier foreign subsidiaries. In addition, the obligations of any foreign subsidiary who is a foreign borrower, as defined by the 2018 credit facility, are guaranteed by the foreign subsidiary and by its direct and indirect foreign parents.