v3.26.3
Consolidated Statements of Equity - USD ($)
$ in Thousands
Total
Common Stock
Common Stock Including Additional Paid in Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Noncontrolling Interests
Beginning balance at Dec. 31, 2024   $ 1,194,998   $ 2,149,548 $ (13,592) $ 7,001
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock Issued During Period, Value, New Issues   4,541        
Share-based compensation expense     $ 9,066      
Tax withholdings on net settlements of share-based awards   (3,303)        
Other   (83)        
Net Income Attributable to IDACORP, Inc. $ 279,865     279,865    
Common stock dividends       (140,239)    
Unfunded pension liability adjustment (net of tax) 282       282  
Income attributable to noncontrolling interests (531)         531
Ending balance at Sep. 30, 2025 3,488,615 1,205,219   2,289,174 (13,310) 7,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Total IDACORP, Inc. shareholders’ equity   1,201,374     (13,481)  
Beginning balance at Jun. 30, 2025       2,211,514   7,360
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock Issued During Period, Value, New Issues   1,487        
Share-based compensation expense     2,391      
Tax withholdings on net settlements of share-based awards   (9)        
Other   (24)        
Net Income Attributable to IDACORP, Inc. 124,437     124,437    
Common stock dividends       (46,777)    
Unfunded pension liability adjustment (net of tax) 171       171  
Income attributable to noncontrolling interests (172)         172
Ending balance at Sep. 30, 2025 3,488,615 1,205,219   2,289,174 (13,310) 7,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Total IDACORP, Inc. shareholders’ equity 3,481,083 1,205,219     (13,310)  
Total IDACORP, Inc. shareholders’ equity 3,571,874          
Beginning balance at Dec. 31, 2025 3,578,686 1,301,907   2,284,911 (14,944) 6,812
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock Issued During Period, Value, New Issues   318,029        
Share-based compensation expense     9,175      
Tax withholdings on net settlements of share-based awards   (6,118)        
Other   (148)        
Net Income Attributable to IDACORP, Inc. 330,771     330,771    
Common stock dividends       (149,113)    
Unfunded pension liability adjustment (net of tax) 665       665  
Income attributable to noncontrolling interests (588)         588
Ending balance at Sep. 30, 2026 4,082,535 1,622,845   2,466,569 (14,279) 7,400
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Total IDACORP, Inc. shareholders’ equity   1,431,553     (14,501)  
Beginning balance at Jun. 30, 2026       2,357,553   7,181
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock Issued During Period, Value, New Issues   188,672        
Share-based compensation expense     $ 2,626      
Tax withholdings on net settlements of share-based awards   0        
Other   (6)        
Net Income Attributable to IDACORP, Inc. 160,213     160,213    
Common stock dividends       (51,197)    
Unfunded pension liability adjustment (net of tax) 222       222  
Income attributable to noncontrolling interests (219)         219
Ending balance at Sep. 30, 2026 4,082,535 1,622,845   $ 2,466,569 (14,279) $ 7,400
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Total IDACORP, Inc. shareholders’ equity $ 4,075,135 $ 1,622,845     $ (14,279)