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v3.19.2

Consolidated Statements Of Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | AOCI Attributable to Parent [Member] | Retained Earnings [Member] | Noncontrolling Interests [Member]
--- | --- | --- | --- | --- | ---
Common Stock, Dividends, Per Share, Cash Paid | $ 0.7450 |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2017 |  | 65,494,333 |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Shares issued |  | 193,159 |  |  |
Ending Balance (in shares) at Jun. 30, 2018 |  | 65,687,492 |  |  |
Beginning Balance at Dec. 31, 2017 |  | $ 1,133,448 | $ (8,090) | $ 604,470 |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Equity compensation expense |  | 3,558 |  |  |
Issuance of common stock, net of issuance costs |  | 1,227 |  |  |
Payment of minimum tax withholdings for share-based payment awards |  | (3,929) |  |  |
Other comprehensive income | $ 408 |  | 408 |  |
Reclassification of excess income tax benefits |  |  | (1,742) | 1,742 |
Net income attributable to Avista Corporation shareholders | 80,467 |  |  | 80,467 |
Cash dividends paid (common stock) |  |  |  | (49,101) |
Ending Balance at Jun. 30, 2018 | $ 1,762,707 | $ 1,134,304 | (9,424) | 637,578 |
Beginning Balance Noncontrolling Interest at Dec. 31, 2017 |  |  |  |  | $ 656
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Net income (loss) attributable to noncontrolling interests |  |  |  |  | 133
Cash dividends paid to subsidiary noncontrolling interests |  |  |  |  | (540)
Deconsolidation of noncontrolling interests related to sale of METALfx |  |  |  |  | 0
Ending Balance Noncontrolling Interest at Jun. 30, 2018 |  |  |  |  | 249
Common Stock, Dividends, Per Share, Cash Paid | $ 0.3725 |  |  |  |
Beginning Balance (in shares) at Mar. 31, 2018 |  | 65,668,477 |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Shares issued |  | 19,015 |  |  |
Ending Balance (in shares) at Jun. 30, 2018 |  | 65,687,492 |  |  |
Beginning Balance at Mar. 31, 2018 |  | $ 1,131,549 | (9,628) | 636,468 |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Equity compensation expense |  | 1,760 |  |  |
Issuance of common stock, net of issuance costs |  | 995 |  |  |
Payment of minimum tax withholdings for share-based payment awards |  | 0 |  |  |
Other comprehensive income | $ 204 |  | 204 |  |
Reclassification of excess income tax benefits |  |  | 0 | 0 |
Net income attributable to Avista Corporation shareholders | 25,577 |  |  | 25,577 |
Cash dividends paid (common stock) |  |  |  | (24,467) |
Ending Balance at Jun. 30, 2018 | 1,762,707 | $ 1,134,304 | (9,424) | 637,578 |
Beginning Balance Noncontrolling Interest at Mar. 31, 2018 |  |  |  |  | 182
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Net income (loss) attributable to noncontrolling interests |  |  |  |  | 67
Cash dividends paid to subsidiary noncontrolling interests |  |  |  |  | 0
Deconsolidation of noncontrolling interests related to sale of METALfx |  |  |  |  | 0
Ending Balance Noncontrolling Interest at Jun. 30, 2018 |  |  |  |  | 249
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Total Avista Corporation shareholders’ equity | 1,762,458 |  |  |  |
Total Avista Corporation shareholders’ equity | $ 1,773,220 |  |  |  |
Common Stock, Dividends, Per Share, Cash Paid | $ 0.7750 |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2018 | 65,688,356 | 65,688,356 |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Shares issued |  | 422,961 |  |  |
Ending Balance (in shares) at Jun. 30, 2019 | 66,111,317 | 66,111,317 |  |  |
Beginning Balance at Dec. 31, 2018 | $ 1,774,045 | $ 1,136,491 | (7,866) | 644,595 |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Equity compensation expense |  | 6,495 |  |  |
Issuance of common stock, net of issuance costs |  | 14,929 |  |  |
Payment of minimum tax withholdings for share-based payment awards |  | (891) |  |  |
Other comprehensive income | 321 |  | 321 |  |
Reclassification of excess income tax benefits |  |  | 0 | 0 |
Net income attributable to Avista Corporation shareholders | 141,113 |  |  | 141,113 |
Cash dividends paid (common stock) |  |  |  | (51,153) |
Ending Balance at Jun. 30, 2019 | 1,884,034 | $ 1,157,024 | (7,545) | 734,555 |
Beginning Balance Noncontrolling Interest at Dec. 31, 2018 | 825 |  |  |  | 825
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Net income (loss) attributable to noncontrolling interests |  |  |  |  | (216)
Cash dividends paid to subsidiary noncontrolling interests |  |  |  |  | 0
Deconsolidation of noncontrolling interests related to sale of METALfx |  |  |  |  | (609)
Ending Balance Noncontrolling Interest at Jun. 30, 2019 | $ 0 |  |  |  | 0
Common Stock, Dividends, Per Share, Cash Paid | $ 0.3875 |  |  |  |
Beginning Balance (in shares) at Mar. 31, 2019 |  | 65,749,932 |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Shares issued |  | 361,385 |  |  |
Ending Balance (in shares) at Jun. 30, 2019 | 66,111,317 | 66,111,317 |  |  |
Beginning Balance at Mar. 31, 2019 |  | $ 1,140,242 | (7,706) | 734,774 |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Equity compensation expense |  | 2,043 |  |  |
Issuance of common stock, net of issuance costs |  | 14,739 |  |  |
Payment of minimum tax withholdings for share-based payment awards |  | 0 |  |  |
Other comprehensive income | $ 161 |  | 161 |  |
Reclassification of excess income tax benefits |  |  | 0 | 0 |
Net income attributable to Avista Corporation shareholders | 25,319 |  |  | 25,319 |
Cash dividends paid (common stock) |  |  |  | (25,538) |
Ending Balance at Jun. 30, 2019 | 1,884,034 | $ 1,157,024 | $ (7,545) | $ 734,555 |
Beginning Balance Noncontrolling Interest at Mar. 31, 2019 |  |  |  |  | 912
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Net income (loss) attributable to noncontrolling interests |  |  |  |  | (303)
Cash dividends paid to subsidiary noncontrolling interests |  |  |  |  | 0
Deconsolidation of noncontrolling interests related to sale of METALfx |  |  |  |  | (609)
Ending Balance Noncontrolling Interest at Jun. 30, 2019 | 0 |  |  |  | $ 0
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |
Total Avista Corporation shareholders’ equity | $ 1,884,034 |  |  |  |

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