v3.26.1
Cover
 3 Months Ended
Mar. 31, 2026
segment
Apr. 24, 2026
shares
Document Information    
Number of Reportable Segments | segment 1  
Number of Operating Segments | segment 1  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 1-14465  
Entity Registrant Name IDACORP, Inc.  
Entity Tax Identification Number 82-0505802  
Entity Address, Address Line One 1221 W. Idaho Street  
Entity Address, City or Town Boise,  
Entity Address, State or Province ID  
Entity Address, Postal Zip Code 83702-5627  
City Area Code (208)  
Local Phone Number 388-2200  
Entity Current Reporting Status Yes  
Entity Incorporation, State or Country Code ID  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Title of 12(b) Security Common Stock  
Trading Symbol IDA  
Security Exchange Name NYSE  
Entity Common Stock, Shares Outstanding | shares   55,408,235
Entity Central Index Key 0001057877  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Information, Former Legal or Registered Name None  
Idaho Power Company    
Document Information    
No Trading Symbol Flag true  
Entity File Number 1-3198  
Entity Registrant Name Idaho Power Company  
Entity Tax Identification Number 82-0130980  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding | shares   39,150,812
Entity Central Index Key 0000049648  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false