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INVESTMENTS: Investments Level 3 (Tables)
12 Months Ended
Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]  
Investments
The table below summarizes IDACORP’s and Idaho Power’s investments as of December 31 (in thousands of dollars): 
 
 
2017
 
2016
Idaho Power investments:
 
 

 
 

Bridger Coal Company (equity method investment)
 
$
68,566

 
$
82,299

Exchange traded short-term bond funds and cash equivalents
 
30,249

 
23,908

Executive deferred compensation plan investments
 
17

 
111

Total Idaho Power investments
 
98,832

 
106,318

Investments in affordable housing (IDACORP Financial Services)
 
5,521

 
7,643

Ida-West joint ventures (equity method investments)
 
11,345

 
11,213

Total IDACORP investments
 
$
115,698

 
$
125,174

Schedule of Equity in Earnings (Losses) of Equity Method Investments
The table below presents IDACORP’s and Idaho Power’s earnings of unconsolidated equity-method investments (in thousands of dollars):
 
 
2017
 
2016
 
2015
Bridger Coal Company (Idaho Power)
 
$
9,267

 
$
10,855

 
$
9,773

Ida-West joint ventures
 
2,107

 
2,016

 
1,355

Total
 
$
11,374

 
$
12,871

 
$
11,128

Schedule of Realized Gain (Loss)
The following table summarizes sales of available-for-sale securities (in thousands of dollars):
 
 
2017
 
2016
 
2015
Proceeds from sales
 
$
4,989

 
$
15,693

 
$
34,243

Gross realized gains from sales
 

 
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