Business Acquisitions Business Acquisitions (Tables)

12 Months Ended

Dec. 31, 2016

Business Acquisitions [Abstract]

Business Acquisition, Pro Forma Information [Table Text Block]

	2016		2015		2014
Actual Avista Corp. revenues from continuing operations (excluding AERC)	$	1,395,989	$	1,439,807	$	1,450,918
Supplemental pro forma AERC revenues (1)	46,494		44,969		46,467
Total pro forma revenues	1,442,483		1,484,776		1,497,385
Actual AERC revenues included in Avista Corp. revenues (1)	46,494		44,969		21,644
Actual Avista Corp. net income from continuing operations attributable to Avista Corp. shareholders (excluding AERC)	129,505		111,772		116,665
Actual Avista Corp. net income from discontinued operations attributable to Avista Corp. shareholders	—		5,147		72,224
Adjustment to Avista Corp.'s net income for acquisition costs (net of tax) (2)	—		22		870
Supplemental pro forma AERC net income (1)	7,723		6,308		8,806
Total pro forma net income	137,228		123,249		198,565
Actual AERC net income included in Avista Corp. net income (1)	$	7,723	$	6,308	$	3,152

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The fair value of assets acquired and liabilities assumed as of July 1, 2014 (after consideration of a working capital adjustment and income tax true-ups during the second quarter of 2015) were as follows (in thousands):

	July 1, 2014
Assets acquired:
Current Assets:
Cash	$	19,704
Accounts receivable - gross totals $3,928	3,851
Materials and supplies	2,017
Other current assets	999
Total current assets	26,571
Utility Property:
Utility plant in service	113,964
Utility property under long-term capital lease	71,007
Construction work in progress	3,440
Total utility property	188,411
Other Non-current Assets:
Non-utility property	6,660
Electric plant held for future use	3,711
Goodwill (1)	52,426
Other deferred charges and non-current assets	5,368
Total other non-current assets	68,165
Total assets	$	283,147
Liabilities Assumed:
Current Liabilities:
Accounts payable	$	700
Current portion of long-term debt and capital lease obligations	3,773
Other current liabilities (1)	2,807
Total current liabilities	7,280
Long-term debt	37,227
Capital lease obligations	68,840
Other non-current liabilities and deferred credits (1)	14,889
Total liabilities	$	128,236
Total net assets acquired	$	154,911

(1) During the second quarter of 2015, the Company recorded a reduction to goodwill of approximately $0.3 million due to income tax related adjustments.