Income Loss From Continuing Operations Excluding Acquired Entity

No definition available.

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- Definition

Revenues Excluding Acquired Entity

+ References

No definition available.

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- Details

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-Paragraph 2

-Subparagraph (h)(1)

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- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

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- Definition

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

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-Name Accounting Standards Codification

-Topic 230

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-Glossary Other Comprehensive Income

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-Glossary Net Income

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

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-Name Regulation S-X (SX)

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Business Acquisitions Business Acquisitions Pro Forma Operating Results (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended			18 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Business Acquisition [Line Items]
Revenues Excluding Acquired Entity									$ 1,450,918ava_RevenuesExcludingAcquiredEntity	$ 1,441,744ava_RevenuesExcludingAcquiredEntity
Operating revenues from continuing operations	411,846us-gaap_Revenues	301,558us-gaap_Revenues	312,580us-gaap_Revenues	446,578us-gaap_Revenues	404,280us-gaap_Revenues	289,477us-gaap_Revenues	307,488us-gaap_Revenues	440,499us-gaap_Revenues	1,472,562us-gaap_Revenues	1,441,744us-gaap_Revenues	1,391,338us-gaap_Revenues
Business Acquisition, Pro Forma Revenue									1,497,385	1,483,338
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual									21,644	0
Income Loss From Continuing Operations Excluding Acquired Entity									116,665	104,273
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	1,639	(55)	69,617	1,023	1,275	2,963	1,445	1,121	72,224	6,804	1,491
Net income attributable to Avista Corporation shareholders	32,220us-gaap_NetIncomeLoss	10,451us-gaap_NetIncomeLoss	100,871us-gaap_NetIncomeLoss	48,499us-gaap_NetIncomeLoss	31,666us-gaap_NetIncomeLoss	11,413us-gaap_NetIncomeLoss	25,657us-gaap_NetIncomeLoss	42,341us-gaap_NetIncomeLoss	192,041us-gaap_NetIncomeLoss	111,077us-gaap_NetIncomeLoss	78,210us-gaap_NetIncomeLoss
Business Acquisition, Pro Forma Net Income (Loss)									198,565	119,535
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual									3,152	0
Alaska Energy Resources Company [Member]
Business Acquisition [Line Items]
Operating revenues from continuing operations									46,467	41,594
Business Combination, Acquisition Related Costs												(3,000)
Net income attributable to Avista Corporation shareholders									8,806	9,328
Acquisition-related Costs [Member] \| Alaska Energy Resources Company [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs									$ (870)	$ (870)