Condensed Consolidated Statements of Equity $ in Thousands	USD ($)
Balance at beginning of period at Dec. 31, 2014	$ 845,402
Common Stock
Other common stock changes	310
Balance at end of period at Mar. 31, 2015	845,712
Balance at beginning of period at Dec. 31, 2014	1,132,237
Retained Earnings
Net Income Attributable to IDACORP, Inc.	23,430
Common stock dividends	(23,698)
Balance at end of period at Mar. 31, 2015	1,131,969
AOCI - Beginning Balance at Dec. 31, 2014	(24,158)
Accumulated Other Comprehensive (Loss) Income
Unfunded pension liability adjustment (net of tax)	667
AOCI - Ending Balance at Mar. 31, 2015	(23,491)
Balance at beginning of period at Dec. 31, 2014	(280)
Treasury Stock
Issued	3,497
Acquired	(3,222)
Balance at end of period at Mar. 31, 2015	(5)
Balance at beginning of period at Dec. 31, 2014	4,364
Noncontrolling Interests
Net (loss) income attributable to noncontrolling interests	(86)
Balance at end of period at Mar. 31, 2015	4,278
Treasury Stock
Total IDACORP, Inc. shareholders’ equity at end of period	1,954,185
Noncontrolling Interests
Total equity at end of period	1,958,463
Total IDACORP, Inc. shareholders’ equity at end of period	2,057,884
Total equity at end of period	2,062,044
Balance at beginning of period at Dec. 31, 2015	849,112
Common Stock
Other common stock changes	(985)
Balance at end of period at Mar. 31, 2016	848,361
Balance at beginning of period at Dec. 31, 2015	1,230,105
Retained Earnings
Net Income Attributable to IDACORP, Inc.	25,729
Common stock dividends	(25,713)
Balance at end of period at Mar. 31, 2016	1,229,887
AOCI - Beginning Balance at Dec. 31, 2015	(21,276)
Accumulated Other Comprehensive (Loss) Income
Unfunded pension liability adjustment (net of tax)	564
AOCI - Ending Balance at Mar. 31, 2016	(20,712)
Balance at beginning of period at Dec. 31, 2015	(57)
Treasury Stock
Issued	3,112
Acquired	(3,084)
Balance at end of period at Mar. 31, 2016	(29)
Balance at beginning of period at Dec. 31, 2015	4,160
Noncontrolling Interests
Net (loss) income attributable to noncontrolling interests	(199)
Balance at end of period at Mar. 31, 2016	3,961
Common Stock
Cumulative Effect of New Accounting Principle in Period of Adoption	234
Treasury Stock
Total IDACORP, Inc. shareholders’ equity at end of period	2,057,507
Noncontrolling Interests
Total equity at end of period	$ 2,061,468