The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References+ Details

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

Quarterly Results (Unaudited) Quarterly Results (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Results [Line Items]
Revenues	$ 523,526	$ 495,491	$ 482,175	$ 447,536	$ 523,335	$ 504,063	$ 579,140	$ 571,640	$ 1,948,728	$ 2,178,178	$ 2,434,124
Gross profit	164,738	150,084	159,588	140,123	163,500	171,797	196,745	183,105	614,533	715,147	746,458
Net income (loss) attributable to Itron, Inc.	(154,430)	(7,348)	12,399	2,570	15,960	35,347	31,615	25,353	(146,809)	108,275	(510,157)
Earnings (loss) per common share - Basic	$ (3.93)	$ (0.19)	$ 0.31	$ 0.07	$ 0.40	$ 0.90	$ 0.79	$ 0.64	$ (3.74)	$ 2.73	$ (12.56)
Earnings (loss) per common share - Diluted	$ (3.93)	$ (0.19)	$ 0.31	$ 0.06	$ 0.40	$ 0.89	$ 0.79	$ 0.63	$ (3.74)	$ 2.71	$ (12.56)
Goodwill, Impairment Loss									$ 173,249	$ 0	$ 584,847
Maximum [Member]
Quarterly Results [Line Items]
Share Price	$ 47.90				$ 48.23				$ 47.90	$ 48.23
Maximum [Member] \| First Quarter [Member]
Quarterly Results [Line Items]
Share Price				$ 47.90				$ 48.23
Maximum [Member] \| Second Quarter [Member]
Quarterly Results [Line Items]
Share Price			$ 47.00				$ 45.42
Maximum [Member] \| Third Quarter [Member]
Quarterly Results [Line Items]
Share Price		$ 43.72				$ 45.85
Maximum [Member] \| Fourth Quarter [Member]
Quarterly Results [Line Items]
Share Price	$ 45.76				$ 45.26				$ 45.76	$ 45.26
Minimum [Member]
Quarterly Results [Line Items]
Share Price	$ 37.16				$ 33.50				$ 37.16	$ 33.50
Minimum [Member] \| First Quarter [Member]
Quarterly Results [Line Items]
Share Price				$ 41.50				$ 36.60
Minimum [Member] \| Second Quarter [Member]
Quarterly Results [Line Items]
Share Price			$ 39.15				$ 33.50
Minimum [Member] \| Third Quarter [Member]
Quarterly Results [Line Items]
Share Price		$ 37.16				$ 38.28
Minimum [Member] \| Fourth Quarter [Member]
Quarterly Results [Line Items]
Share Price	$ 38.79				$ 38.71				$ 38.79	$ 38.71