Quarterly Results (Unaudited) Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Results (Unaudited) [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	First Quarter		Second Quarter		Third Quarter			Fourth Quarter			Total Year
	(in thousands, except per common share and stock price data)
2013
Statement of operations data:
Revenues	$	447,536	$	482,175	$	495,491		$	523,526		$	1,948,728
Gross profit	140,123		159,588		150,084			164,738			614,533
Net income (loss) attributable to Itron, Inc.	2,570		12,399		(7,348		)	(154,430		)	(146,809		)
Earnings (loss) per common share - Basic	$	0.07	$	0.31	$	(0.19	)	$	(3.93	)	$	(3.74	)
Earnings (loss) per common share - Diluted	$	0.06	$	0.31	$	(0.19	)	$	(3.93	)	$	(3.74	)
Stock Price:
High	47.90		47.00		43.72			45.76			47.90
Low	41.50		39.15		37.16			38.79			37.16
2012
Statement of operations data:
Revenues	$	571,640	$	579,140	$	504,063		$	523,335		$	2,178,178
Gross profit	183,105		196,745		171,797			163,500			715,147
Net income (loss) attributable to Itron, Inc.	25,353		31,615		35,347			15,960			108,275
Earnings (loss) per common share - Basic	$	0.64	$	0.79	$	0.90		$	0.40		$	2.73
Earnings (loss) per common share - Diluted	$	0.63	$	0.79	$	0.89		$	0.40		$	2.71
Stock Price:
High	48.23		45.42		45.85			45.26			48.23
Low	36.60		33.50		38.28			38.71			33.50