$IDA
IDACORP INC Stock $ida

$ida Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000105787715000043 Filed on February 19, 2015

Income Statement

Concept	2013 Q4	2012 Q4	2012
Revenue	$296.2M	$250.8M	$1.081B
YoY Change	18.1%	8.76%	5.25%
Cost Of Revenue	$54.90M	$57.80M	$203.2M
YoY Change	-5.02%	61.9%	19.18%
Gross Profit	$241.3M	$193.0M	$877.5M
YoY Change	25.03%	-0.97%	2.48%
Gross Profit Margin	81.47%	76.95%	81.2%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$34.30M	$32.70M	$128.6M
YoY Change	4.89%	1.87%	3.17%
% of Gross Profit	14.21%	16.94%	14.66%
Operating Expenses	$204.7M	$168.5M	$838.1M
YoY Change	21.48%	-13.77%	-3.83%
Operating Profit	$36.60M	$24.50M	$242.6M
YoY Change	49.39%	-5000.0%	56.16%
Interest Expense	-$10.00M	$1.800M	$73.87M
YoY Change	-655.56%	-111.69%	3.28%
% of Operating Profit	-27.32%	7.35%	30.45%
Other Income/Expense, Net	$18.90M	$5.300M	$24.36M
YoY Change	256.6%	-80.94%	-12.37%
Pretax Income	$45.60M	$31.70M	$207.0M
YoY Change	43.85%	161.98%	64.55%
Income Tax	$14.10M	$11.00M	$33.81M
% Of Pretax Income	30.92%	34.7%	16.33%
Net Earnings	$31.60M	$20.70M	$173.0M
YoY Change	52.66%	68.29%	1.78%
Net Earnings / Revenue	10.67%	8.25%	16.01%
Basic Earnings Per Share			$3.47
Diluted Earnings Per Share	$629.5K	$413.2K	$3.46
COMMON SHARES
Basic Shares Outstanding	50.23M shares	50.16M shares	49.93M shares
Diluted Shares Outstanding			50.01M shares

Balance Sheet

Concept	2013 Q4	2012 Q4	2012
SHORT-TERM ASSETS
Cash & Short-Term Investments	$78.20M	$26.50M	$26.50M
YoY Change	195.09%	-4.68%	-4.68%
Cash & Equivalents	$78.16M	$26.53M	$26.50M
Short-Term Investments
Other Short-Term Assets	$2.401M	$4.948M	$155.8M
YoY Change	-51.48%	7.43%	36.79%
Inventory	$95.20M	$93.40M	$93.40M
Prepaid Expenses	$15.34M	$12.82M
Receivables	$97.87M	$66.11M	$66.10M
Other Receivables	$15.40M	$25.40M	$25.40M
Total Short-Term Assets	$476.6M	$367.3M	$367.3M
YoY Change	29.78%	18.1%	18.1%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.665B	$3.536B	$3.536B
YoY Change	3.65%	3.8%	3.8%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$11.45M	$11.60M	$160.8M
YoY Change	-1.22%	7.55%	-19.56%
Other Assets	$42.95M	$49.26M	$1.205B
YoY Change	-12.8%	22.08%	18.42%
Total Long-Term Assets	$4.871B	$4.924B	$4.924B
YoY Change	-1.08%	6.71%	5.9%
TOTAL ASSETS
Total Short-Term Assets	$476.6M	$367.3M	$367.3M
Total Long-Term Assets	$4.871B	$4.924B	$4.924B
Total Assets	$5.347B	$5.291B	$5.291B
YoY Change	1.06%	7.43%	6.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$91.52M	$90.17M	$90.20M
YoY Change	1.5%	10.27%	10.27%
Accrued Expenses	$61.30M	$64.70M	$64.70M
YoY Change	-5.26%	5.2%	5.2%
Deferred Revenue
YoY Change
Short-Term Debt	$54.75M	$69.70M	$69.70M
YoY Change	-21.45%	28.6%	28.6%
Long-Term Debt Due	$1.064M	$71.06M	$71.10M
YoY Change	-98.5%	-29.68%	-29.67%
Total Short-Term Liabilities	$250.4M	$351.3M	$351.3M
YoY Change	-28.73%	-4.6%	-4.59%
LONG-TERM LIABILITIES
Long-Term Debt	$1.615B	$1.467B	$1.467B
YoY Change	10.13%	5.7%	5.69%
Other Long-Term Liabilities	$54.10M	$65.23M	$844.0M
YoY Change	-17.06%	-13.95%	9.45%
Total Long-Term Liabilities	$1.644B	$1.727B	$2.311B
YoY Change	-4.82%	11.94%	7.04%
TOTAL LIABILITIES
Total Short-Term Liabilities	$250.4M	$351.3M	$351.3M
Total Long-Term Liabilities	$1.644B	$1.727B	$2.311B
Total Liabilities	$1.895B	$2.079B	$3.550B
YoY Change	-8.86%	8.75%	7.46%
SHAREHOLDERS EQUITY
Retained Earnings	$1.027B	$924.0M
YoY Change	11.2%	12.73%
Common Stock	$839.8M	$834.9M
YoY Change	0.58%	0.79%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$8.000K	$21.00K
YoY Change	-61.9%	-27.59%
Treasury Stock Shares	718.0 shares	1.817K shares
Shareholders Equity	$1.851B	$1.742B	$1.742B
YoY Change
Total Liabilities & Shareholders Equity	$5.365B	$5.291B	$5.291B
YoY Change	1.38%	6.67%	6.67%

Cashflow Statement

Concept	2013 Q4	2012 Q4	2012
OPERATING ACTIVITIES
Net Income	$31.60M	$20.70M	$173.0M
YoY Change	52.66%	68.29%	1.78%
Depreciation, Depletion And Amortization	$34.30M	$32.70M	$128.6M
YoY Change	4.89%	1.87%	3.17%
Cash From Operating Activities	$57.90M	$67.80M	$249.3M
YoY Change	-14.6%	-9.96%	-19.65%
INVESTING ACTIVITIES
Capital Expenditures	-$69.70M	-$52.00M	$239.8M
YoY Change	34.04%	-26.55%	-29.01%
Acquisitions
YoY Change
Other Investing Activities	-$6.900M	-$6.600M	-$367.0K
YoY Change	4.55%	450.0%	-88.88%
Cash From Investing Activities	-$76.60M	-$58.50M	-$243.8M
YoY Change	30.94%	-18.86%	-26.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			-$2.820M
YoY Change			-81.89%
Debt Paid & Issued, Net			$101.1M
YoY Change			-16.52%
Cash From Financing Activities	-90.00M	-2.900M	-$6.734M
YoY Change	3003.45%	-57.35%	-96.23%
NET CHANGE
Cash From Operating Activities	57.90M	67.80M	$249.3M
Cash From Investing Activities	-76.60M	-58.50M	-$243.8M
Cash From Financing Activities	-90.00M	-2.900M	-$6.734M
Net Change In Cash	-108.7M	6.400M	-$1.286M
YoY Change	-1798.44%	-277.78%	-99.36%
FREE CASH FLOW
Cash From Operating Activities	$57.90M	$67.80M	$249.3M
Capital Expenditures	-$69.70M	-$52.00M	$239.8M
Free Cash Flow	$127.6M	$119.8M	$9.481M
YoY Change	6.51%	-18.0%	-134.44%

Facts In Submission

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CY2014	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	19163000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-9300000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1806000	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3260000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	8195000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	8190000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-922719000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1022931000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	370223000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	419401000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	46874000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	42359000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	30921000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	11067000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	15222000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	55017000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	55490000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	149188000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	154044000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	69033000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	132571000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	23739000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	25355000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	23063000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	28529000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1292942000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1442332000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	19372000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	17492000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	969593000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1065290000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	24678000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	25982000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	436837000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	451118000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	35763000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	23192000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	710482000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	802188000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7000000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7000000	USD
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7000000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	128611000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	133776000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	137088000	USD
CY2013Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	1100000	USD
CY2013Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	576000	USD
CY2014Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	2381000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	1672000	USD
CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	634000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2248000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	3015000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	1672000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	634000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	2204000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	5096000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	572000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	3961000	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	572000	USD
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	3961000	USD
CY2014Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	1200000	USD
CY2013Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	1632000	USD
CY2014Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	1135000	USD
CY2014Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	5100000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	68709000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	78937000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	88704000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.47
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.64
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.86
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.46
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.64
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.85
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.163
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.284
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.080
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	937765000	USD
CY2013	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	1101728000	USD
CY2014	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	1122281000	USD
CY2012	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1076725000	USD
CY2013	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1243098000	USD
CY2014	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1278651000	USD
CY2012	us-gaap	Electrical Generation Revenue ElectricalGenerationRevenue	61534000	USD
CY2013	us-gaap	Electrical Generation Revenue ElectricalGenerationRevenue	54473000	USD
CY2014	us-gaap	Electrical Generation Revenue ElectricalGenerationRevenue	77165000	USD
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	38510000	USD
CY2014Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	43774000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	0	USD
CY2013Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	41546000	USD
CY2014Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	55171000	USD
CY2012	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	18546000	USD
CY2013	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	17526000	USD
CY2014	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	5261000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	11454000	USD
CY2014Q4	us-gaap	Equity Method Investments EquityMethodInvestments	11393000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	15803000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	13698000	USD
CY2012	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	202000	USD
CY2013	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	11678000	USD
CY2014	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	193000	USD
CY2012	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2013	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2014	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	206992000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	254520000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	210526000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11617000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11939000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12372000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33805000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	72226000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16772000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	72387000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	89125000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	73588000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	14398000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	14820000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	16040000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-9699000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1483000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1970000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7801000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6730000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4680000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3267000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3119000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3002000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	5493000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	5503000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	5189000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1451000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1437000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	11364000	USD
CY2013Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	156000	USD
CY2014Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	11867000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	10580000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-517000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	6359000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2741000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	29557000	USD
CY2014	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-20433000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-604000	USD
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	4747000	USD
CY2014	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-13631000	USD
CY2012	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5255000	USD
CY2013	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	12165000	USD
CY2014	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	13124000	USD
CY2012	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-8500000	USD
CY2013	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	1819000	USD
CY2014	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	1771000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	7064000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	830000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3655000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-7412000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-8867000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-6707000	USD
CY2012	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	53468000	USD
CY2013	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	25581000	USD
CY2014	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-32135000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	80000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	74000	shares
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	68000	shares
CY2012	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	14000	USD
CY2013	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	18000	USD
CY2014	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	1164000	USD
CY2012	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	11929000	USD
CY2013	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	7663000	USD
CY2014	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	8464000	USD
CY2012	us-gaap	Interest Expense InterestExpense	73869000	USD
CY2013	us-gaap	Interest Expense InterestExpense	81032000	USD
CY2014	us-gaap	Interest Expense InterestExpense	79801000	USD
CY2012	us-gaap	Interest Expense Debt InterestExpenseDebt	78922000	USD
CY2013	us-gaap	Interest Expense Debt InterestExpenseDebt	81492000	USD
CY2014	us-gaap	Interest Expense Debt InterestExpenseDebt	80562000	USD
CY2012	us-gaap	Interest Expense Other InterestExpenseOther	6876000	USD
CY2014	us-gaap	Interest Expense Other InterestExpenseOther	7703000	USD
CY2012	us-gaap	Interest Income Other InterestIncomeOther	1714000	USD
CY2013	us-gaap	Interest Expense Other InterestExpenseOther	7203000	USD
CY2013	us-gaap	Interest Income Other InterestIncomeOther	2204000	USD
CY2014	us-gaap	Interest Income Other InterestIncomeOther	1949000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	70887000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	77968000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	77295000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	22764000	USD
CY2014Q4	us-gaap	Interest Payable Current InterestPayableCurrent	22630000	USD
CY2012	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2280000	USD
CY2013	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2373000	USD
CY2014	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2655000	USD
CY2012	us-gaap	Investment Tax Credit InvestmentTaxCredit	9056000	USD
CY2013	us-gaap	Investment Tax Credit InvestmentTaxCredit	-775000	USD
CY2014	us-gaap	Investment Tax Credit InvestmentTaxCredit	42000	USD
CY2013Q4	us-gaap	Investments Investments	160089000	USD
CY2014Q4	us-gaap	Investments Investments	165458000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	6100000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	5300000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	5900000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5364563000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5716853000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	250372000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	241781000	USD
CY2013Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	1644193000	USD
CY2014Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	1903069000	USD
CY2013Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	22037000	USD
CY2014Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	23893000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	1616322000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	1615502000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1064000	USD
CY2014Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1064000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1395344000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1064000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	100000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	120000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1064000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1064000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1615258000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1614438000	USD
CY2013Q4	us-gaap	Long Term Investments LongTermInvestments	159072000	USD
CY2014Q4	us-gaap	Long Term Investments LongTermInvestments	165424000	USD
CY2013Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	170460000	USD
CY2014Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	170460000	USD
CY2012	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	0	USD
CY2013	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	11637000	USD
CY2014	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	0	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	4040000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	4213000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	193480000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	173000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-123000	USD
CY2014	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	274000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	24364000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	4090000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	4364000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-6734000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-17321000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-113277000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-243821000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-236593000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-272420000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	249269000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	305549000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	364343000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	173014000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	182417000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	29440000	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	21554000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	838060000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	954472000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	1028828000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	242602000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	291742000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	253696000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	2401000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	603000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	42954000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	39598000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1567000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-4136000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-6555000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	5791000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-9333000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5494000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	563000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7605000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	7061000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4699000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	7605000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-4532000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	3016000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-4881000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	7087000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	4550000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1567000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2951000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1006000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1894000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2012	us-gaap	Other General Expense OtherGeneralExpense	12039000	USD
CY2013	us-gaap	Other General Expense OtherGeneralExpense	14149000	USD
CY2014	us-gaap	Other General Expense OtherGeneralExpense	14268000	USD
CY2012	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2279000	USD
CY2013	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2431000	USD
CY2014	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2705000	USD
CY2013Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	53643000	USD
CY2014Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	55404000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	17779000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	23975000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	54100000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	44238000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-6121000	USD
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3297000	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5085000	USD
CY2012	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	208000	USD
CY2013	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	71000	USD
CY2014	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	28000	USD
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	409000	USD
CY2013	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	852000	USD
CY2014	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	588000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4209000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	17013000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6328000	USD
CY2013Q4	us-gaap	Other Receivables OtherReceivables	15274000	USD
CY2014Q4	us-gaap	Other Receivables OtherReceivables	16018000	USD
CY2012	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	3937000	USD
CY2013	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	3116000	USD
CY2014	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	3873000	USD
CY2012	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	4881000	USD
CY2013	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	2591000	USD
CY2014	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	4241000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-367000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3473000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4962000	USD
CY2012	us-gaap	Payments For Proceeds From Real Estate Partnership Investment Net PaymentsForProceedsFromRealEstatePartnershipInvestmentNet	-242000	USD
CY2013	us-gaap	Payments For Proceeds From Real Estate Partnership Investment Net PaymentsForProceedsFromRealEstatePartnershipInvestmentNet	-1746000	USD
CY2014	us-gaap	Payments For Proceeds From Real Estate Partnership Investment Net PaymentsForProceedsFromRealEstatePartnershipInvestmentNet	-1161000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2062000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2124000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2737000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	68928000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	78832000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	88489000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	7000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	32661000	USD
CY2014	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	8000000	USD
CY2012	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	381000	USD
CY2013	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	0	USD
CY2014	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	0	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	239788000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	235310000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	274094000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	47695000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	33393000	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	33720000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	45230000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	45907000	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	44627000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	244627000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	403334000	USD
CY2013Q4	us-gaap	Plant Held For Future Use Amount PlantHeldForFutureUseAmount	7090000	USD
CY2014Q4	us-gaap	Plant Held For Future Use Amount PlantHeldForFutureUseAmount	7090000	USD
CY2013Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	15338000	USD
CY2014Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	18476000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4882000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	255000	USD
CY2014	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	195000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	150000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	150000000	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5062000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-606000	USD
CY2014	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2268000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	15500000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-14950000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-23450000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	0	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	25661000	USD
CY2014	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	0	USD
CY2012	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	2739000	USD
CY2013	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	498000	USD
CY2014	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	2931000	USD
CY2014Q4	us-gaap	Regulatory Assets RegulatoryAssets	1242387000	USD
CY2013Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	61837000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2014	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	620000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	173187000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	182294000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	193754000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3665041000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3833477000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	17229000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	17256000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	22433000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	14858000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	17931000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	22433000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	14858000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	17931000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.077
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.077
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.077
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1766680000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1841011000	USD
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	327000000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	401930000	USD
CY2012	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0275
CY2013	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0269
CY2014	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0268
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	1459666000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	1516933000	USD
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	2272381000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	2316941000	USD
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	3313722000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	3407201000	USD
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	373658000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	398131000	USD
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	5080402000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	5248212000	USD
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	974697000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1016207000	USD
CY2013Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	17372000	USD
CY2014Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	12762000	USD
CY2012	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1061000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	5228000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1728000	USD
CY2013Q4	us-gaap	Regulatory Assets RegulatoryAssets	1040071000	USD
CY2014Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	50042000	USD
CY2013Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	978234000	USD
CY2014Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1192345000	USD
CY2013Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	386557000	USD
CY2014Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	401607000	USD
CY2013Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	10684000	USD
CY2014Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	11400000	USD
CY2013Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	375873000	USD
CY2014Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	390207000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	101064000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	71064000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1064000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	819676000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	923981000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1027461000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1132237000	USD
CY2012	us-gaap	Sales Revenue Net SalesRevenueNet	1080662000	USD
CY2013	us-gaap	Sales Revenue Net SalesRevenueNet	1246214000	USD
CY2014	us-gaap	Sales Revenue Net SalesRevenueNet	1282524000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	1425000000	USD
CY2014Q4	us-gaap	Secured Debt SecuredDebt	1425000000	USD
CY2013Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	1064000	USD
CY2014Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	1064000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2013Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	54750000	USD
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	31300000	USD
CY2013Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0034
CY2014Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0043
CY2013	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	63330000	USD
CY2014	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	37786000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	4882000	USD
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	255000	USD
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	195000	USD
CY2012	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	2070000	USD
CY2013	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	2137000	USD
CY2014	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	2465000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	1741766000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	1850650000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1953201000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1745979000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1854740000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1957565000	USD
CY2012	us-gaap	Stockholders Equity Other StockholdersEquityOther	1651000	USD
CY2013	us-gaap	Stockholders Equity Other StockholdersEquityOther	4573000	USD
CY2014	us-gaap	Stockholders Equity Other StockholdersEquityOther	5457000	USD
CY2012	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	30489000	USD
CY2013	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	30561000	USD
CY2014	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	31748000	USD
CY2013Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	13302000	USD
CY2014Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	10367000	USD
CY2013Q4	us-gaap	Trading Securities TradingSecurities	1153000	USD
CY2014Q4	us-gaap	Trading Securities TradingSecurities	141000	USD
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	718	shares
CY2014Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	38764	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	29000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	21000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	8000	USD
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	280000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2062000	USD
CY2013	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2124000	USD
CY2014	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2737000	USD
CY2013Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	63507000	USD
CY2014Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	56270000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2012	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	826021000	USD
CY2013	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	940323000	USD
CY2014	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1014560000	USD
CY2012	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	123941000	USD
CY2013	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	129735000	USD
CY2014	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	132987000	USD
CY2012	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	159413000	USD
CY2013	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	214482000	USD
CY2014	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	201241000	USD
CY2012	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	349033000	USD
CY2013	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	348867000	USD
CY2014	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	354567000	USD
CY2012	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	196935000	USD
CY2013	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	220579000	USD
CY2014	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	244628000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50010000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50126000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50199000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49930000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50052000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50131000	shares
CY2014	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Settlement gains and losses on electricity swap contracts are recorded on the income statement in off-system sales or purchased power depending on the forecasted position being economically hedged by the derivative contract.  Settlement gains and losses on contracts for natural gas are reflected in fuel expense.  Settlement gains and losses on diesel derivatives are recorded in other operations and maintenance expense.</font></div></div>
CY2014	us-gaap	Derivatives Methods Of Accounting Nonhedging Derivatives DerivativesMethodsOfAccountingNonhedgingDerivatives	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Idaho Power is exposed to market risk relating to electricity, natural gas, and other fuel commodity prices, all of which are heavily influenced by supply and demand.  Market risk may be influenced by market participants’ nonperformance of their contractual obligations and commitments, which affects the supply of or demand for the commodity.  Idaho Power uses derivative instruments, such as physical and financial forward contracts, for both electricity and fuel to manage the risks relating to these commodity price exposures.  The primary objectives of Idaho Power’s energy purchase and sale activity are to meet the demand of retail electric customers, maintain appropriate physical reserves to ensure reliability, and make economic use of temporary surpluses that may develop.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">All of Idaho Power's derivative instruments have been entered into for the purpose of economically hedging forecasted purchases and sales, though none of these instruments have been designated as cash flow hedges. Idaho Power offsets fair value amounts recognized on its balance sheet and applies collateral related to derivative instruments executed with the same counterparty under the same master netting agreement. Idaho Power does not offset a counterparty's current derivative contracts with the counterparty's long-term derivative contracts, although Idaho Power's master netting arrangements would allow current and long-term positions to be offset in the event of default. Also, in the event of default, Idaho Power's master netting arrangements would allow for the offsetting of all transactions executed under the master netting arrangement. These types of transactions may include non-derivative instruments, derivatives qualifying for scope exceptions, receivables and payables arising from settled positions, and other forms of non-cash collateral (such as letters of credit).</font></div></div>
CY2014	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">IDACORP and Idaho Power enter into financial agreements and power purchase and sale agreements that include indemnification provisions relating to various forms of claims or liabilities that may arise from the transactions contemplated by these agreements.  Generally, a maximum obligation is not explicitly stated in the indemnification provisions and, therefore, the overall maximum amount of the obligation under such indemnification provisions cannot be reasonably estimated.  IDACORP and Idaho Power periodically evaluate the likelihood of incurring costs under such indemnities based on their historical experience and the evaluation of the specific indemnities.  As of </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2014</font><font style="font-family:inherit;font-size:10pt;">, management believes the likelihood is remote that IDACORP or Idaho Power would be required to perform under such indemnification provisions or otherwise incur any significant losses with respect to such indemnification obligations.  Neither IDACORP nor Idaho Power has recorded any liability on their respective consolidated balance sheets with respect to these indemnification obligations.</font></div></div>
CY2014	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Nature of Business</font></div><div style="line-height:120%;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">IDACORP is a holding company formed in 1998 whose principal operating subsidiary is Idaho Power.  Idaho Power is an electric utility with a service area covering approximately 24,000 square miles in southern Idaho and eastern Oregon.  Idaho Power is regulated primarily by the Federal Energy Regulatory Commission (FERC) and the state regulatory commissions of Idaho and Oregon.  Idaho Power is the parent of Idaho Energy Resources Co. (IERCo), a joint venturer in Bridger Coal Company (BCC), which mines and supplies coal to the Jim Bridger generating plant owned in part by Idaho Power.</font></div><div style="line-height:120%;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">IDACORP’s other wholly-owned subsidiaries include IDACORP Financial Services, Inc. (IFS), an investor in affordable housing and other real estate investments; Ida-West Energy Company (Ida-West), an operator of small hydroelectric generation projects that satisfy the requirements of the Public Utility Regulatory Policies Act of 1978 (PURPA); and IDACORP Energy Services Co. (IESCo), which is the former limited partner of, and current successor by merger to, IDACORP Energy L.P. (IE), a marketer of energy commodities that wound down operations in 2003.</font></div></div>
CY2014	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Management Estimates</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Management makes estimates and assumptions when preparing financial statements in conformity with generally accepted accounting principles (GAAP).  These estimates and assumptions include those related to rate regulation, retirement benefits, contingencies, litigation, asset impairment, income taxes, unbilled revenues, and bad debt.  These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.  These estimates involve judgments with respect to, among other things, future economic factors that are difficult to predict and are beyond management’s control.  As a result, actual results could differ from those estimates.</font></div></div>

Files In Submission

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$IDA
IDACORP INC Stock $ida

2013 Q4 Form 10-K Financial Statement

#000105787715000043 Filed on February 19, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDA IDACORP INC Stock $ida

2013 Q4 Form 10-K Financial Statement

#000105787715000043 Filed on February 19, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDA
IDACORP INC Stock $ida