Discontinued Operations Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2016

Discontinued Operations [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]

The following table presents amounts that were included in discontinued operations for the years ended December 31, 2015 and 2014 (dollars in thousands):

	2015			2014
Revenues	$	—		$	87,534
Gain on sale of Ecova (1)	777			160,612
Transaction expenses and accelerated employee benefits (2)	71			9,062
Gain on sale of Ecova, net of transaction expenses	706			151,550
Income before income taxes	706			156,025
Income tax expense (benefit) (3)	(4,441		)	83,614
Net income from discontinued operations	5,147			72,411
Net income attributable to noncontrolling interests	—			(187		)
Net income from discontinued operations attributable to Avista Corp. shareholders	$	5,147		$	72,224