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REVENUES: Electric utility operating revenues (Tables)
12 Months Ended
Dec. 31, 2019
Electric utility operating revenues [Line Items]  
Electric utility operating revenues The following table provides a summary of electric utility operating revenues for IDACORP and Idaho Power (in thousands):
 
 
Year Ended December 31,
 
 
2019
 
2018
 
2017
Electric utility operating revenues:
 
 
 
 
 
 
Revenue from contracts with customers
 
$
1,285,286

 
$
1,312,112

 
$
1,320,004

Alternative revenue programs and derivative revenues
 
57,654

 
54,470

 
24,889

Total electric utility operating revenues
 
$
1,342,940

 
$
1,366,582

 
$
1,344,893