Condensed Consolidated Statements of Income Statement - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating Revenues:
Electric utility revenues	$ 359,058	$ 317,666	$ 674,625	$ 608,154
Other	1,016	1,100	1,502	1,620
Total operating revenues	360,074	318,766	676,127	609,774
Operating Expenses:
Purchased power	96,116	61,774	164,104	122,975
Fuel expense	31,191	31,414	64,496	61,430
Power cost adjustment	(7,934)	(1,536)	(2,263)	(4,927)
Other operations and maintenance	88,490	83,144	174,148	172,951
Energy efficiency programs	6,658	11,953	15,685	21,428
Depreciation	43,627	42,914	86,942	85,440
Other electric utility operating expenses	9,007	9,151	18,333	18,292
Total electric utility expenses	267,155	238,814	521,445	477,589
Other	515	512	1,170	1,176
Total operating expenses	267,670	239,326	522,615	478,765
Operating Income	92,404	79,440	153,512	131,009
Nonoperating (Income) Expense:
Allowance for equity funds used during construction	(7,795)	(7,149)	(15,564)	(14,421)
Earnings of equity-method investments	(2,313)	(2,687)	(4,630)	(5,003)
Interest on long-term debt	21,036	22,056	42,073	41,718
Other interest	3,611	3,557	7,130	7,369
Allowance for borrowed funds used during construction	(3,019)	(2,886)	(6,025)	(5,616)
Other Income (Expense), Net	(460)	(1,043)	(702)	(1,976)
Total nonopearting expense, net	11,060	11,848	22,282	22,071
Income Before Income Taxes	81,344	67,592	131,230	108,938
Income Tax Expense	11,070	6,933	16,156	10,821
Net Income	70,274	60,659	115,074	98,117
Income attributable to noncontrolling interests	(251)	(270)	(220)	(238)
Net Income Attributable to IDACORP, Inc.	$ 70,023	$ 60,389	$ 114,854	$ 97,879
Weighted-average common shares outstanding - basic	50,609	50,551	50,588	50,534
Weighted-average common shares outstanding - diluted	50,622	50,567	50,601	50,547
Earnings Per Share of Common Stock:
Earnings attributable to IDACORP, Inc. - basic (in dollars per share)	$ 1.38	$ 1.19	$ 2.27	$ 1.94
Earnings attributable to IDACORP, Inc. - diluted (in dollars per share)	$ 1.38	$ 1.19	$ 2.27	$ 1.94
Idaho Power Company
Operating Revenues:
Total operating revenues	$ 359,058	$ 317,666	$ 674,625	$ 608,154
Nonoperating (Income) Expense:
Net Income Attributable to IDACORP, Inc.	68,822	58,923	113,191	95,700
Idaho Power Company
Operating Expenses:
Purchased power	96,116	61,774	164,104	122,975
Fuel expense	31,191	31,414	64,496	61,430
Power cost adjustment	(7,934)	(1,536)	(2,263)	(4,927)
Other operations and maintenance	88,490	83,144	174,148	172,951
Energy efficiency programs	6,658	11,953	15,685	21,428
Depreciation	43,627	42,914	86,942	85,440
Other electric utility operating expenses	9,007	9,151	18,333	18,292
Total electric utility expenses	267,155	238,814	521,445	477,589
Operating Income	91,903	78,852	153,180	130,565
Nonoperating (Income) Expense:
Allowance for equity funds used during construction	(7,795)	(7,149)	(15,564)	(14,421)
Earnings of equity-method investments	(1,743)	(1,987)	(4,293)	(4,440)
Interest on long-term debt	21,036	22,056	42,073	41,718
Other interest	3,606	3,544	7,120	7,357
Allowance for borrowed funds used during construction	(3,019)	(2,886)	(6,025)	(5,616)
Other Income (Expense), Net	(423)	(841)	(613)	(1,311)
Total nonopearting expense, net	11,662	12,737	22,698	23,287
Income Before Income Taxes	80,241	66,115	130,482	107,278
Income Tax Expense	11,419	7,192	17,291	11,578
Net Income	$ 68,822	$ 58,923	$ 113,191	$ 95,700