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EARNINGS PER SHARE: Earnings Per Share Level 3 (Tables)
 12 Months Ended
Dec. 31, 2015
Earnings Per Share, Basic and Diluted [Abstract]  
Schedule of Earnings Per Share, Diluted
The following table presents the computation of IDACORP’s basic and diluted earnings per share for the years ended December 31, 2015, 2014, and 2013 (in thousands, except for per share amounts):
 
 
Year Ended December 31,
 
 
2015
 
2014
 
2013
Numerator:
 
 

 
 

 
 

Net income attributable to IDACORP, Inc.
 
$
194,679

 
$
193,480

 
$
182,417

Denominator:
 
 

 
 

 
 
Weighted-average common shares outstanding - basic
 
50,220

 
50,131

 
50,052

Effect of dilutive securities
 
72

 
68

 
74

Weighted-average common shares outstanding - diluted
 
50,292

 
50,199

 
50,126

Basic earnings per share
 
$
3.88

 
$
3.86

 
$
3.64

Diluted earnings per share
 
$
3.87

 
$
3.85

 
$
3.64