Consolidated Balance Sheets Statement (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents	$ 27,813	$ 228,677
Receivables:
Customer	66,296	62,114
Other	8,197	10,157
Income taxes receivable	421	12,130
Accrued unbilled revenues	46,441	47,964
Materials and supplies (at average cost)	46,490	45,601
Fuel stock (at average cost)	47,865	27,547
Prepayments	12,405	11,063
Deferred income taxes	16,159	10,715
Current regulatory assets	34,279	6,216
Other	4,606	1,854
Total current assets	310,972	464,038
Investments	199,931	202,944
Property, Plant and Equipment:
Utility plant in service	4,466,873	4,332,054
Accumulated provision for depreciation	(1,677,609)	(1,614,013)
Utility plant in service - net	2,789,264	2,718,041
Construction work in progress	591,475	416,950
Utility plant held for future use	6,974	7,076
Other property, net of accumulated depreciation	18,877	19,315
Property, plant and equipment - net	3,406,590	3,161,382
Other Assets:
American Falls and Milner water rights	20,015	22,120
Company-owned life insurance	24,060	26,672
Regulatory assets	953,068	753,172
Long-term receivables	5,621	3,965
Other	40,352	41,762
Total other assets	1,043,116	847,691
Total	4,960,609	4,676,055
Current Liabilities:
Current maturities of long-term debt	101,064	122,572
Notes payable	54,200	66,900
Accounts payable	100,432	103,100
Income taxes accrued	505	0
Interest accrued	21,797	23,937
Uncertain tax positions	0	74,436
Current regulatory liabilities	29,738	8,011
Other	60,511	50,103
Total current liabilities	368,247	449,059
Other Liabilities:
Deferred income taxes	772,047	566,473
Regulatory liabilities	332,057	298,094
Pension and other postretirement benefits	363,209	263,688
Other	75,805	74,470
Total other liabilities	1,543,118	1,202,725
Long-Term Debt	1,387,550	1,488,287
Commitments and Contingencies
Equity:
Common stock	828,389	807,842
Retained earnings	840,916	733,879
Accumulated other comprehensive loss	(11,622)	(9,568)
Treasury stock	(29)	(40)
Total IDACORP, Inc. shareholders’ equity	1,657,654	1,532,113
Noncontrolling interests	4,040	3,871
Total equity	1,661,694	1,535,984
Total	4,960,609	4,676,055
Idaho Power Company
Current Assets:
Cash and cash equivalents	19,316	224,233
Receivables:
Customer	66,296	62,114
Other	8,011	8,835
Income taxes receivable	4,644	21,063
Accrued unbilled revenues	46,441	47,964
Materials and supplies (at average cost)	46,490	45,601
Fuel stock (at average cost)	47,865	27,547
Prepayments	12,274	10,910
Deferred income taxes	14,099	7,334
Current regulatory assets	34,279	6,216
Other	4,606	1,238
Total current assets	304,321	463,055
Property, Plant and Equipment:
Utility plant in service	4,466,873	4,332,054
Accumulated provision for depreciation	(1,677,609)	(1,614,013)
Utility plant in service - net	2,789,264	2,718,041
Construction work in progress	591,475	416,950
Utility plant held for future use	6,974	7,076
Property, plant and equipment - net	3,387,713	3,142,067
Investments and Other Property	128,674	120,641
Other Assets:
American Falls and Milner water rights	20,015	22,120
Company-owned life insurance	24,060	26,672
Regulatory assets	953,068	753,172
Other	38,988	40,666
Total other assets	1,036,131	842,630
Total	4,856,839	4,568,393
Current Liabilities:
Current maturities of long-term debt	101,064	121,064
Accounts payable	99,716	102,474
Accounts payable to related parties	1,512	1,110
Interest accrued	21,797	23,930
Uncertain tax positions	0	74,436
Current regulatory liabilities	29,738	8,011
Other	59,785	48,733
Total current liabilities	313,612	379,758
Other Liabilities:
Deferred income taxes	863,044	661,165
Regulatory liabilities	332,057	298,094
Pension and other postretirement benefits	363,209	263,688
Other	73,147	72,172
Total other liabilities	1,631,457	1,295,119
Long-Term Debt	1,387,550	1,488,287
Commitments and Contingencies
Equity:
Common stock	97,877	97,877
Premium on capital stock	704,758	688,758
Capital stock expense	2,097	2,097
Retained earnings	735,304	630,259
Accumulated other comprehensive loss	(11,622)	(9,568)
Total equity	1,524,220	1,405,229
Total capitalization	2,911,770	2,893,516
Total	$ 4,856,839	$ 4,568,393