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EARNINGS PER SHARE: Level 3 (Tables)
 6 Months Ended
Jun. 30, 2012
Earnings Per Share, Basic and Diluted [Abstract]  
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block]
The table below presents the computation of IDACORP’s basic and diluted earnings per share (EPS) for the three and six months ended June 30, 2012 and 2011 (in thousands, except for per share amounts).
 
 
Three months ended
June 30,
 
Six months ended
June 30,
 
 
2012
 
2011
 
2012
 
2011
Numerator:
 
 

 
 

 
 

 
 

Net income attributable to IDACORP, Inc.
 
$
35,301

 
$
20,901

 
$
60,230

 
$
50,641

Denominator:
 
 

 
 

 
 
 
 
Weighted-average common shares outstanding - basic
 
49,927

 
49,420

 
49,893

 
49,355

Effect of dilutive securities:
 
 

 
 
 
 
 
 
Options
 
5

 
19

 
5

 
16

Restricted Stock
 
52

 
77

 
46

 
65

Weighted-average common shares outstanding - diluted
 
49,984

 
49,516

 
49,944

 
49,436

Basic earnings per share
 
$
0.71

 
$
0.42

 
$
1.21

 
$
1.03

Diluted earnings per share
 
$
0.71

 
$
0.42

 
$
1.21

 
$
1.02