Goodwill Schedule of Goodwill Allocated to Reporting Segments (Tables)

6 Months Ended

Jun. 30, 2011

Goodwill [Line Items]

Schedule of Goodwill [Table Text Block]

The following table reflects goodwill allocated to each reporting segment at June 30, 2011 and 2010:

	Itron North America		Itron International			Total Company
	(in thousands)
Goodwill balance at January 1, 2010	$	197,515	$	1,108,084		$	1,305,599
Effect of change in exchange rates	89		(159,606		)	(159,517		)
Goodwill balance at June 30, 2010	$	197,604	$	948,478		$	1,146,082
Goodwill balance at January 1, 2011	$	198,048	$	1,011,328		$	1,209,376
Goodwill acquired	—		10,251			10,251
Effect of change in exchange rates	205		91,939			92,144
Goodwill balance at June 30, 2011	$	198,253	$	1,113,518		$	1,311,771