Condensed Consolidated Statements of Income Statement (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating Revenues:
General business	$ 220,529	$ 194,296	$ 417,958	$ 397,568
Off-system sales	11,418	20,720	39,126	50,565
Other revenues	21,600	18,908	36,946	36,853
Total electric utility revenues	253,547	233,924	494,030	484,986
Other	1,154	1,059	1,812	1,491
Total operating revenues	254,701	234,983	495,842	486,477
Operating Expenses:
Purchased power	45,178	36,423	79,456	61,517
Fuel expense	21,285	19,704	54,036	49,606
Power cost adjustment	(3,211)	15,501	5,798	46,807
Other operations and maintenance	86,005	85,472	164,517	156,133
Energy efficiency programs	8,084	5,796	12,561	12,507
Depreciation	29,879	29,693	60,421	59,157
Taxes other than income taxes	7,849	7,182	15,949	14,394
Total electric utility expenses	195,069	199,771	392,738	400,121
Other	832	913	1,959	1,966
Total operating expenses	195,901	200,684	394,697	402,087
Operating Income	58,800	34,299	101,145	84,390
Other Income (Expense):
Other (expense) income, net	6,571	5,041	13,163	9,579
Earnings (Losses) of Unconsolidated Equity-Method Investments	(1,928)	(4,447)	(509)	(5,741)
Interest Expense:
Interest on long-term debt	20,083	19,504	39,582	40,351
Other interest, net of AFUDC	(2,647)	(1,936)	(4,940)	(3,823)
Total interest expense, net	17,436	17,568	34,642	36,528
Income Before Income Taxes	46,007	17,325	79,157	51,700
Income Tax (Benefit) Expense	10,569	(3,652)	18,902	1,235
Net Income	35,438	20,977	60,255	50,465
Adjustment for (income) loss attributable to noncontrolling interests	(137)	(76)	(25)	176
Net Income Attributable to IDACORP, Inc.	35,301	20,901	60,230	50,641
Weighted Average Common Shares Outstanding - Basic (000’s)	49,927	49,420	49,893	49,355
Weighted Average Common Shares Outstanding - Diluted (000’s)	49,984	49,516	49,944	49,436
Earnings Per Share of Common Stock:
Earnings Attributable to IDACORP, Inc. - Basic	$ 0.71	$ 0.42	$ 1.21	$ 1.03
Earnings Attributable to IDACORP, Inc. - Diluted	$ 0.71	$ 0.42	$ 1.21	$ 1.02
Dividends Declared Per Share of Common Stock	$ 0.33	$ 0.30	$ 0.66	$ 0.60
Idaho Power Company
Operating Revenues:
General business	220,529	194,296	417,958	397,568
Off-system sales	11,418	20,720	39,126	50,565
Other revenues	21,600	18,908	36,946	36,853
Total electric utility revenues	253,547	233,924	494,030	484,986
Operating Expenses:
Purchased power	45,178	36,423	79,456	61,517
Fuel expense	21,285	19,704	54,036	49,606
Power cost adjustment	(3,211)	15,501	5,798	46,807
Other operations and maintenance	86,005	85,472	164,517	156,133
Energy efficiency programs	8,084	5,796	12,561	12,507
Depreciation	29,879	29,693	60,421	59,157
Taxes other than income taxes	7,849	7,182	15,949	14,394
Total electric utility expenses	195,069	199,771	392,738	400,121
Operating Income	58,478	34,153	101,292	84,865
Other Income (Expense):
Allowance for equity funds used during construction	7,832	6,365	15,449	11,694
Other (expense) income, net	(1,367)	(1,363)	(2,847)	(2,375)
Earnings (Losses) of Unconsolidated Equity-Method Investments	(266)	(3,428)	4,027	(2,570)
Total other income	6,199	1,574	16,629	6,749
Interest Expense:
Interest on long-term debt	20,083	19,504	39,582	40,351
Other interest	1,579	1,311	3,138	2,525
Allowance for borrowed funds used during construction	(4,333)	(3,375)	(8,282)	(6,589)
Total interest expense, net	17,329	17,440	34,438	36,287
Income Before Income Taxes	47,348	18,287	83,483	55,327
Income Tax (Benefit) Expense	12,639	(2,414)	22,954	4,779
Net Income	$ 34,709	$ 20,701	$ 60,529	$ 50,548