Earnings Per Common Share Attributable To Avista Corporation (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Computations Of Earnings Per Share

	2018		2017		2016
Numerator:
Net income attributable to Avista Corp. shareholders	$	136,429	$	115,916	$	137,228
Denominator:
Weighted-average number of common shares outstanding-basic	65,673		64,496		63,508
Effect of dilutive securities:
Performance and restricted stock awards	273		310		412
Weighted-average number of common shares outstanding-diluted	65,946		64,806		63,920
Earnings per common share attributable to Avista Corp. shareholders:
Basic	$	2.08	$	1.80	$	2.16
Diluted	$	2.07	$	1.79	$	2.15

There were no shares excluded from the calculation because they were antidilutive.