$AVA
AVISTA CORP Stock $ava

$ava Overview Financials Valuation SEC Filings Company Website

2015 Q2 Form 10-Q Financial Statement

#000010491815000104 Filed on August 05, 2015

Income Statement

Concept	2015 Q2	2014 Q2
Revenue	$337.3M	$312.6M
YoY Change	7.92%	1.66%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$36.70M	$33.90M
YoY Change	8.26%	1.8%
% of Gross Profit
Operating Expenses	$280.0M	$249.8M
YoY Change	12.09%	-1.07%
Operating Profit	$57.36M	$62.73M
YoY Change	-8.56%	14.12%
Interest Expense	$19.87M	$18.55M
YoY Change	7.11%	-4.58%
% of Operating Profit	34.63%	29.57%
Other Income/Expense, Net	$1.836M	$3.055M
YoY Change	-39.9%	39.37%
Pretax Income	$40.09M	$47.96M
YoY Change	-16.4%	24.42%
Income Tax	$15.02M	$16.69M
% Of Pretax Income	37.45%	34.8%
Net Earnings	$25.25M	$100.9M
YoY Change	-74.97%	293.15%
Net Earnings / Revenue	7.48%	32.27%
Basic Earnings Per Share	$0.41	$1.68
Diluted Earnings Per Share	$0.40	$1.67
COMMON SHARES
Basic Shares Outstanding	62.28M shares	60.18M shares
Diluted Shares Outstanding	62.60M shares	60.46M shares

Balance Sheet

Concept	2015 Q2	2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$16.00M	$208.0M
YoY Change	-92.31%	144.71%
Cash & Equivalents	$16.24M	$208.0M
Short-Term Investments
Other Short-Term Assets	$43.43M	$38.11M
YoY Change	13.94%	10.01%
Inventory	$50.87M	$49.44M
Prepaid Expenses
Receivables	$136.0M	$128.0M
Other Receivables	$1.000M	$0.00
Total Short-Term Assets	$289.3M	$442.3M
YoY Change	-34.58%	-5.64%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.726B	$3.282B
YoY Change	13.53%	5.73%
Goodwill	$57.67M	$5.246M
YoY Change	999.35%	-93.17%
Intangibles
YoY Change
Long-Term Investments	$64.00M	$57.00M
YoY Change	12.28%	-37.36%
Other Assets	$143.5M	$100.0M
YoY Change	43.49%	-60.98%
Total Long-Term Assets	$4.391B	$3.760B
YoY Change	16.78%	-3.07%
TOTAL ASSETS
Total Short-Term Assets	$289.3M	$442.3M
Total Long-Term Assets	$4.391B	$3.760B
Total Assets	$4.680B	$4.202B
YoY Change	11.37%	-3.35%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$70.09M	$73.35M
YoY Change	-4.45%	-52.19%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$90.00M	$152.0M
YoY Change	-40.79%	58.33%
Long-Term Debt Due	$3.000M	$14.00M
YoY Change	-78.57%	-78.79%
Total Short-Term Liabilities	$306.9M	$464.3M
YoY Change	-33.9%	-20.28%
LONG-TERM LIABILITIES
Long-Term Debt	$1.546B	$1.320B
YoY Change	17.12%	1.93%
Other Long-Term Liabilities	$146.5M	$114.5M
YoY Change	27.88%	-6.49%
Total Long-Term Liabilities	$146.5M	$114.5M
YoY Change	27.88%	-6.49%
TOTAL LIABILITIES
Total Short-Term Liabilities	$306.9M	$464.3M
Total Long-Term Liabilities	$146.5M	$114.5M
Total Liabilities	$3.166B	$2.793B
YoY Change	13.37%	-7.7%
SHAREHOLDERS EQUITY
Retained Earnings	$520.5M	$528.3M
YoY Change	-1.47%	30.06%
Common Stock	$1.001B	$885.7M
YoY Change	13.04%	-1.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.514B	$1.410B
YoY Change
Total Liabilities & Shareholders Equity	$4.680B	$4.202B
YoY Change	11.37%	-3.35%

Cashflow Statement

Concept	2015 Q2	2014 Q2
OPERATING ACTIVITIES
Net Income	$25.25M	$100.9M
YoY Change	-74.97%	293.15%
Depreciation, Depletion And Amortization	$36.70M	$33.90M
YoY Change	8.26%	1.8%
Cash From Operating Activities	$85.30M	$67.10M
YoY Change	27.12%	33.13%
INVESTING ACTIVITIES
Capital Expenditures	-$96.30M	-$78.90M
YoY Change	22.05%	4.92%
Acquisitions
YoY Change
Other Investing Activities	$900.0K	$206.9M
YoY Change	-99.57%	2855.71%
Cash From Investing Activities	-$95.40M	$127.9M
YoY Change	-174.59%	-287.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	4.300M	-77.20M
YoY Change	-105.57%	-647.52%
NET CHANGE
Cash From Operating Activities	85.30M	67.10M
Cash From Investing Activities	-95.40M	127.9M
Cash From Financing Activities	4.300M	-77.20M
Net Change In Cash	-5.800M	117.8M
YoY Change	-104.92%	-3283.78%
FREE CASH FLOW
Cash From Operating Activities	$85.30M	$67.10M
Capital Expenditures	-$96.30M	-$78.90M
Free Cash Flow	$181.6M	$146.0M
YoY Change	24.38%	16.24%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014Q4	ava	Accumulated Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Tax AccumulatedOtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossTax	-4247000	USD
CY2015Q2	ava	Accumulated Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Tax AccumulatedOtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossTax	-4360000	USD
	ava	Amortization Of Energy Contract AmortizationOfEnergyContract	6078000	USD
	ava	Amortization Of Energy Contract AmortizationOfEnergyContract	6612000	USD
CY2014Q3	ava	Business Acquisition Adjusted Contract Price BusinessAcquisitionAdjustedContractPrice	150814000	USD
CY2014Q3	ava	Business Acquisition Contract Price BusinessAcquisitionContractPrice	170000000	USD
CY2014Q3	ava	Business Acquisition Contract Price Closing Adjustments BusinessAcquisitionContractPriceClosingAdjustments	58000	USD
CY2014Q3	ava	Business Acquisition Recognized Identifiable Assets Acquiredand Liabilities Assumed Currentand Long Term Debt BusinessAcquisitionRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentandLongTermDebt	38832000	USD
CY2014Q3	ava	Business Combination Equity Consideration Share Price BusinessCombinationEquityConsiderationSharePrice	32.46
	ava	Business Combination Numberof Trading Daysto Price Equity Consideration Share Price BusinessCombinationNumberofTradingDaystoPriceEquityConsiderationSharePrice	10	D
CY2014Q4	ava	Current Regulatory Asset For Utility Derivatives CurrentRegulatoryAssetForUtilityDerivatives	29640000	USD
CY2015Q2	ava	Current Regulatory Asset For Utility Derivatives CurrentRegulatoryAssetForUtilityDerivatives	21464000	USD
	ava	Decreaseincrease In Investmentsand Funds Held For Clients DecreaseincreaseInInvestmentsandFundsHeldForClients	18931000	USD
	ava	Decreaseincrease In Investmentsand Funds Held For Clients DecreaseincreaseInInvestmentsandFundsHeldForClients	0	USD
CY2014Q2	ava	Depreciation And Amortization Expense DepreciationAndAmortizationExpense	31331000	USD
	ava	Depreciation And Amortization Expense DepreciationAndAmortizationExpense	62204000	USD
CY2015Q2	ava	Depreciation And Amortization Expense DepreciationAndAmortizationExpense	35841000	USD
	ava	Depreciation And Amortization Expense DepreciationAndAmortizationExpense	70310000	USD
CY2014Q2	ava	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts	152124000	USD
	ava	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts	152124000	USD
CY2015Q2	ava	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts	163000	USD
	ava	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts	163000	USD
CY2014	ava	Discontinued Operation Transaction Expenses DiscontinuedOperationTransactionExpenses	11000000	USD
	ava	Gallonsof Diesel Spilled GallonsofDieselSpilled	10000	gal
	ava	Grant Proceeds From Outside Parties GrantProceedsFromOutsideParties	1729000	USD
	ava	Grant Proceeds From Outside Parties GrantProceedsFromOutsideParties	2538000	USD
CY2014Q2	ava	Income Loss From Continuing Operations Excluding Acquired Entity IncomeLossFromContinuingOperationsExcludingAcquiredEntity	31254000	USD
	ava	Income Loss From Continuing Operations Excluding Acquired Entity IncomeLossFromContinuingOperationsExcludingAcquiredEntity	78730000	USD
CY2015Q2	ava	Income Loss From Continuing Operations Excluding Acquired Entity IncomeLossFromContinuingOperationsExcludingAcquiredEntity	24222000	USD
	ava	Income Loss From Continuing Operations Excluding Acquired Entity IncomeLossFromContinuingOperationsExcludingAcquiredEntity	68140000	USD
CY2014Q2	ava	Income Lossfrom Discontinued Operations Netof Tax Availableto Common Stockholders Diluted IncomeLossfromDiscontinuedOperationsNetofTaxAvailabletoCommonStockholdersDiluted	69675000	USD
	ava	Income Lossfrom Discontinued Operations Netof Tax Availableto Common Stockholders Diluted IncomeLossfromDiscontinuedOperationsNetofTaxAvailabletoCommonStockholdersDiluted	70645000	USD
CY2015Q2	ava	Income Lossfrom Discontinued Operations Netof Tax Availableto Common Stockholders Diluted IncomeLossfromDiscontinuedOperationsNetofTaxAvailabletoCommonStockholdersDiluted	196000	USD
	ava	Income Lossfrom Discontinued Operations Netof Tax Availableto Common Stockholders Diluted IncomeLossfromDiscontinuedOperationsNetofTaxAvailabletoCommonStockholdersDiluted	196000	USD
	ava	Increase Decrease In Client Fund Obligations IncreaseDecreaseInClientFundObligations	16216000	USD
	ava	Increase Decrease In Client Fund Obligations IncreaseDecreaseInClientFundObligations	0	USD
CY2014Q2	ava	Interest Expense Including Affiliated Trusts InterestExpenseIncludingAffiliatedTrusts	18659000	USD
	ava	Interest Expense Including Affiliated Trusts InterestExpenseIncludingAffiliatedTrusts	37514000	USD
CY2015Q2	ava	Interest Expense Including Affiliated Trusts InterestExpenseIncludingAffiliatedTrusts	19981000	USD
	ava	Interest Expense Including Affiliated Trusts InterestExpenseIncludingAffiliatedTrusts	39995000	USD
CY2014Q2	ava	Interest On Regulatory Deferrals InterestOnRegulatoryDeferrals	51000	USD
	ava	Interest On Regulatory Deferrals InterestOnRegulatoryDeferrals	95000	USD
CY2015Q2	ava	Interest On Regulatory Deferrals InterestOnRegulatoryDeferrals	14000	USD
	ava	Interest On Regulatory Deferrals InterestOnRegulatoryDeferrals	34000	USD
CY2014Q4	ava	Long Term Debt Before Current Portion And Bonds Held By Company LongTermDebtBeforeCurrentPortionAndBondsHeldByCompany	1582186000	USD
CY2015Q2	ava	Long Term Debt Before Current Portion And Bonds Held By Company LongTermDebtBeforeCurrentPortionAndBondsHeldByCompany	1581747000	USD
CY2015Q2	ava	Maximum Dividends Allowedby Debt Covenants MaximumDividendsAllowedbyDebtCovenants	410500000	USD
CY2014Q4	ava	Noncurrent Regulatory Asset For Utility Derivatives NoncurrentRegulatoryAssetForUtilityDerivatives	24483000	USD
CY2015Q2	ava	Noncurrent Regulatory Asset For Utility Derivatives NoncurrentRegulatoryAssetForUtilityDerivatives	28214000	USD
	ava	Number Of Bargaining Unit Employees Oregon NumberOfBargainingUnitEmployeesOregon	50	employee
	ava	Number Of Days Canadian Currency Prices Are Settled With Us Dollars NumberOfDaysCanadianCurrencyPricesAreSettledWithUSDollars	P60D
CY2015Q2	ava	Numberof Months Receivable Heldin Escrow NumberofMonthsReceivableHeldinEscrow	15	M
CY2014Q2	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Netof Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetofTax	462000	USD
	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Netof Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetofTax	462000	USD
CY2015Q2	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Netof Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetofTax	0	USD
	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Netof Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetofTax	0	USD
CY2014Q2	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	273000	USD
	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	273000	USD
CY2015Q2	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
	ava	Other Comprehensive Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2014Q2	ava	Other Operating Expenses OtherOperatingExpenses	68229000	USD
	ava	Other Operating Expenses OtherOperatingExpenses	144949000	USD
CY2015Q2	ava	Other Operating Expenses OtherOperatingExpenses	79758000	USD
	ava	Other Operating Expenses OtherOperatingExpenses	162746000	USD
	ava	Public Utilities Property Plant And Equipment Proposed Amount Of Disallowed Costs For Recently Completed Plant PublicUtilitiesPropertyPlantAndEquipmentProposedAmountOfDisallowedCostsForRecentlyCompletedPlant	12700000	USD
CY2014Q4	ava	Receivables Long Term Contracts Or Programs Noncurrent ReceivablesLongTermContractsOrProgramsNoncurrent	28202000	USD
CY2015Q2	ava	Receivables Long Term Contracts Or Programs Noncurrent ReceivablesLongTermContractsOrProgramsNoncurrent	21590000	USD
CY2014Q4	ava	Regulatory Asset For Interest Rate Swap Agreements Noncurrent RegulatoryAssetForInterestRateSwapAgreementsNoncurrent	77063000	USD
CY2015Q2	ava	Regulatory Asset For Interest Rate Swap Agreements Noncurrent RegulatoryAssetForInterestRateSwapAgreementsNoncurrent	51490000	USD
CY2014Q4	ava	Regulatory Assets For Pensions And Other Postretirement Benefits Noncurrent RegulatoryAssetsForPensionsAndOtherPostretirementBenefitsNoncurrent	235758000	USD
CY2015Q2	ava	Regulatory Assets For Pensions And Other Postretirement Benefits Noncurrent RegulatoryAssetsForPensionsAndOtherPostretirementBenefitsNoncurrent	229684000	USD
CY2014Q4	ava	Regulatory Liability For Utility Plant Retirement Costs Noncurrent RegulatoryLiabilityForUtilityPlantRetirementCostsNoncurrent	254140000	USD
CY2015Q2	ava	Regulatory Liability For Utility Plant Retirement Costs Noncurrent RegulatoryLiabilityForUtilityPlantRetirementCostsNoncurrent	259006000	USD
CY2014Q2	ava	Revenues Excluding Acquired Entity RevenuesExcludingAcquiredEntity	312580000	USD
	ava	Revenues Excluding Acquired Entity RevenuesExcludingAcquiredEntity	759158000	USD
CY2015Q2	ava	Revenues Excluding Acquired Entity RevenuesExcludingAcquiredEntity	327085000	USD
	ava	Revenues Excluding Acquired Entity RevenuesExcludingAcquiredEntity	760784000	USD
CY2014Q4	ava	Settled Interest Rate Swaps SettledInterestRateSwaps	17541000	USD
CY2015Q2	ava	Settled Interest Rate Swaps SettledInterestRateSwaps	17336000	USD
CY2014	ava	Transaction Expenses Withheldfrom Sales Proceeds TransactionExpensesWithheldfromSalesProceeds	5400000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
	dei	Document Period End Date DocumentPeriodEndDate	2015-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000104918
CY2015Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	62296577	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	AVISTA CORP
	dei	Trading Symbol TradingSymbol	ava
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CY2014Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	16227000	USD
CY2015Q2	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	6682000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4888000	USD
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CY2014Q4	us-gaap	Assets Current AssetsCurrent	395347000	USD
CY2015Q2	us-gaap	Assets Current AssetsCurrent	289330000	USD
CY2014Q2	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
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CY2014Q2	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	735000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	735000	USD
CY2014Q3	us-gaap	Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued	4500014	shares
CY2014Q4	us-gaap	Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued	1427	shares
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	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	72227000	USD
CY2014Q2	us-gaap	Costs And Expenses CostsAndExpenses	249849000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	606085000	USD
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CY2015Q2	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	10247000	USD
	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	23038000	USD
CY2014Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents	19704000	USD
CY2014Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	74149000	USD
CY2015Q2	us-gaap	Capital Lease Obligations CapitalLeaseObligations	73422000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	82574000	USD
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CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	22143000	USD
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	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	125393000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-5901000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.3175
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.635
CY2015Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.33
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.66
CY2014Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2015Q2	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2015Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	60076752	shares
CY2015Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	62293936	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	999960000	USD
CY2015Q2	us-gaap	Common Stock Value CommonStockValue	1001253000	USD
CY2014Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	101786000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	151179000	USD
CY2015Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	25491000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	72186000	USD
CY2014Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-289000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	193000	USD
CY2015Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	28000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	41000	USD
CY2014Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	101497000	USD
CY2015Q2	us-gaap	Costs And Expenses CostsAndExpenses	279972000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	636887000	USD
CY2014Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1526700000	USD
CY2015Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1526700000	USD
CY2014Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0111
CY2015Q2	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0116
CY2014	us-gaap	Debt Instrument Interest Rate Stated Percentage Rate Range Maximum DebtInstrumentInterestRateStatedPercentageRateRangeMaximum	0.0111
	us-gaap	Debt Instrument Interest Rate Stated Percentage Rate Range Maximum DebtInstrumentInterestRateStatedPercentageRateRangeMaximum	0.0116
CY2014	us-gaap	Debt Instrument Interest Rate Stated Percentage Rate Range Minimum DebtInstrumentInterestRateStatedPercentageRateRangeMinimum	0.0110
	us-gaap	Debt Instrument Interest Rate Stated Percentage Rate Range Minimum DebtInstrumentInterestRateStatedPercentageRateRangeMinimum	0.0111
CY2014Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1122000	USD
CY2015Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1039000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	24161000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6161000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	14794000	USD
CY2015Q2	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	19576000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	100412000	USD
CY2015Q2	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	96806000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	710342000	USD
CY2015Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	718265000	USD
CY2014Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	151000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	298000	USD
CY2015Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	165000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	334000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	68543000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	72131000	USD
CY2014Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	-86355000	USD
CY2015Q2	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	-60773000	USD
CY2014Q4	us-gaap	Derivative Fair Value Amount Offset Against Collateral Net DerivativeFairValueAmountOffsetAgainstCollateralNet	44390000	USD
CY2015Q2	us-gaap	Derivative Fair Value Amount Offset Against Collateral Net DerivativeFairValueAmountOffsetAgainstCollateralNet	38762000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	99045000	USD
CY2015Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	82353000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	229790000	USD
CY2015Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	181888000	USD
CY2014Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	12911000	USD
CY2015Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	6684000	USD
CY2014Q2	us-gaap	Dilutive Securities DilutiveSecurities	58000	USD
	us-gaap	Dilutive Securities DilutiveSecurities	5000	USD
CY2015Q2	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2014Q2	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	161100000	USD
	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	161100000	USD
CY2015Q2	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	163000	USD
	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	163000	USD
CY2014	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	69900000	USD
CY2014Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	154190000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	156599000	USD
CY2015Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	163000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	163000	USD
CY2014Q2	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	84878000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	85772000	USD
CY2014Q2	us-gaap	Disposal Group Including Discontinued Operation Consideration DisposalGroupIncludingDiscontinuedOperationConsideration	335000000	USD
CY2015Q2	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-33000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-33000	USD
CY2014Q2	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	43150000	USD
	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	87534000	USD
CY2015Q2	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	0	USD
	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	0	USD
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.68
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.48
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.67
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.48
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2014Q4	us-gaap	Energy Marketing Contract Liabilities Current EnergyMarketingContractLiabilitiesCurrent	18045000	USD
CY2015Q2	us-gaap	Energy Marketing Contract Liabilities Current EnergyMarketingContractLiabilitiesCurrent	12681000	USD
CY2014Q4	us-gaap	Energy Marketing Contracts Assets Current EnergyMarketingContractsAssetsCurrent	1525000	USD
CY2015Q2	us-gaap	Energy Marketing Contracts Assets Current EnergyMarketingContractsAssetsCurrent	484000	USD
CY2014Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	28731000	USD
CY2015Q2	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	10103000	USD
CY2015Q2	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	1
CY2014Q2	us-gaap	Excise Taxes Collected ExciseTaxesCollected	12469000	USD
	us-gaap	Excise Taxes Collected ExciseTaxesCollected	32207000	USD
CY2015Q2	us-gaap	Excise Taxes Collected ExciseTaxesCollected	12941000	USD
	us-gaap	Excise Taxes Collected ExciseTaxesCollected	32439000	USD
CY2014Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	185000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	145000	USD
CY2015Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	-67000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-451000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	57976000	USD
CY2015Q2	us-gaap	Goodwill Goodwill	57672000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	31254000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	78730000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	25050000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	71499000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	47961000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	122709000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	40094000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	112803000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	31270000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	78736000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	25078000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	71540000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.52
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.31
CY2015Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.41
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.15
CY2014Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.52
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.31
CY2015Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.40
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.14
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	69312000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	70827000	USD
CY2015Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	196000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	196000	USD
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	69617000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	70640000	USD
CY2015Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	196000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	196000	USD
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.16
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.17
CY2015Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.15
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.17
CY2015Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2014Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16691000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43973000	USD
CY2015Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15016000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41263000	USD
CY2014Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	43893000	USD
CY2015Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	942000	USD
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-59086000	USD
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-25460000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-34025000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-26396000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	97617000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1055000	USD
	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	9753000	USD
	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	-908000	USD
	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-7783000	USD
	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-42951000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4491000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-15484000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5273000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2609000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	13747000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4170000	USD
CY2014Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	279000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	163000	shares
CY2015Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	319000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	445000	shares
CY2014Q2	us-gaap	Interest Expense InterestExpense	18547000	USD
	us-gaap	Interest Expense InterestExpense	37291000	USD
CY2015Q2	us-gaap	Interest Expense InterestExpense	19866000	USD
	us-gaap	Interest Expense InterestExpense	39768000	USD
CY2014Q2	us-gaap	Interest Expense Other InterestExpenseOther	112000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	223000	USD
CY2015Q2	us-gaap	Interest Expense Other InterestExpenseOther	115000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	227000	USD
CY2014Q4	us-gaap	Inventory Net InventoryNet	66356000	USD
CY2015Q2	us-gaap	Inventory Net InventoryNet	50873000	USD
CY2014Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	32483000	USD
CY2015Q2	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	35056000	USD
CY2014Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	250000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	524000	USD
CY2015Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	117000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	360000	USD
CY2014Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	42016000	USD
CY2015Q2	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	42506000	USD
CY2014Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	11547000	USD
CY2015Q2	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	11547000	USD
CY2015Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	51500000	USD
CY1997Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	51500000	USD
CY2014Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Noncurrent JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustNoncurrent	51547000	USD
CY2015Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Noncurrent JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustNoncurrent	51547000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	3229089000	USD
CY2015Q2	us-gaap	Liabilities Liabilities	3165984000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4712331000	USD
CY2015Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4679989000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	385269000	USD
CY2015Q2	us-gaap	Liabilities Current LiabilitiesCurrent	306946000	USD
CY2014Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	105000000	USD
CY2015Q2	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	90000000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1492062000	USD
CY2015Q2	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1494885000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	6424000	USD
CY2015Q2	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	3162000	USD
CY2014Q4	us-gaap	Long Term Pollution Control Bond LongTermPollutionControlBond	-83700000	USD
CY2015Q2	us-gaap	Long Term Pollution Control Bond LongTermPollutionControlBond	-83700000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	429000	USD
CY2015Q2	us-gaap	Minority Interest MinorityInterest	388000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-165833000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-62424000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	67238000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-175589000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	223988000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	232112000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	100871000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	664000	USD
	us-gaap	Net Income Loss NetIncomeLoss	149370000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	25246000	USD
	us-gaap	Net Income Loss NetIncomeLoss	71695000	USD
	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	23612000	USD
	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	0	USD
CY2014Q4	us-gaap	Number Of Foreign Currency Derivatives Held NumberOfForeignCurrencyDerivativesHeld	18	derivative_contracts
CY2015Q2	us-gaap	Number Of Foreign Currency Derivatives Held NumberOfForeignCurrencyDerivativesHeld	26	derivative_contracts
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	62731000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	153073000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5655000	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	57360000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	146935000	USD
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	-10032000	USD
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	11414000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	45071000	USD
CY2015Q2	us-gaap	Other Assets Current OtherAssetsCurrent	43428000	USD
CY2014Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	16212000	USD
CY2015Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	16552000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	151174000	USD
CY2015Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	143523000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	915000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1809000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	245000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	491000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-112000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-223000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-245000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-491000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	62000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	121000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	132000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	264000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	2000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	341000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1126000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	201000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2014Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	880000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	10263000	USD
CY2015Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	6646000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	16462000	USD
CY2014Q2	us-gaap	Other Income OtherIncome	366000	USD
	us-gaap	Other Income OtherIncome	654000	USD
CY2015Q2	us-gaap	Other Income OtherIncome	113000	USD
	us-gaap	Other Income OtherIncome	250000	USD
CY2014Q4	us-gaap	Other Inventory OtherInventory	5142000	USD
CY2015Q2	us-gaap	Other Inventory OtherInventory	5714000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	141395000	USD
CY2014Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3055000	USD
CY2015Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	131017000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	146240000	USD
CY2015Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	146473000	USD
CY2014Q4	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	1431000	USD
CY2015Q2	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	0	USD
CY2014Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	11433000	USD
CY2015Q2	us-gaap	Other Long Term Investments OtherLongTermInvestments	10208000	USD
CY2015Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1836000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4067000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	8778000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-5216000	USD
CY2014Q2	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	9475000	USD
	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	18929000	USD
CY2015Q2	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	6502000	USD
	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	16585000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	475000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	798000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2920000	USD
	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	20871000	USD
	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	USD
CY2000	us-gaap	Payments For Repurchase Of Trust Preferred Securities PaymentsForRepurchaseOfTrustPreferredSecurities	10000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	38327000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	41268000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	12267000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	0	USD
CY2015	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	4792000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4697000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	95000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	6122000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	504000	USD
CY2014Q2	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	76845000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	136616000	USD
CY2015Q2	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	96247000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	178256000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	136514000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	177752000	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	54179000	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	11585000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	18786000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	189489000	USD
CY2015Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	188862000	USD
	us-gaap	Pension Contributions PensionContributions	21500000	USD
CY2014	us-gaap	Pension Contributions PensionContributions	32000000	USD
	us-gaap	Pension Contributions PensionContributions	8000000	USD
CY2014	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	143700000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	229903000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	1022000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1980000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1080000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	3023000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1471000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-19500000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1414000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	8026000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-15000000	USD
CY2014Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	3209000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	14612000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
CY2014Q2	us-gaap	Profit Loss ProfitLoss	100582000	USD
	us-gaap	Profit Loss ProfitLoss	149563000	USD
CY2015Q2	us-gaap	Profit Loss ProfitLoss	25274000	USD
	us-gaap	Profit Loss ProfitLoss	71736000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	4945820000	USD
CY2015Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	5115490000	USD
CY2014Q2	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	834000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1495000	USD
CY2015Q2	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	879000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1796000	USD
CY2014Q2	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	2203000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	4237000	USD
CY2015Q2	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1659000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3874000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1325858000	USD
CY2015Q2	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1388790000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	227758000	USD
CY2015Q2	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	174482000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	3619962000	USD
CY2015Q2	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	3726700000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	4718062000	USD
CY2015Q2	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	4941008000	USD
CY2014Q4	us-gaap	Regulated Entity Other Assets Noncurrent RegulatedEntityOtherAssetsNoncurrent	545848000	USD
CY2015Q2	us-gaap	Regulated Entity Other Assets Noncurrent RegulatedEntityOtherAssetsNoncurrent	520436000	USD
CY2014Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	91920000	USD
CY2015Q2	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	97690000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	46000000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	149000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1431000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	491599000	USD
CY2015Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	520537000	USD
CY2014Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	14270000	USD
CY2015Q2	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	21030000	USD
CY2014Q2	us-gaap	Revenues Revenues	312580000	USD
	us-gaap	Revenues Revenues	759158000	USD
CY2015Q2	us-gaap	Revenues Revenues	337332000	USD
	us-gaap	Revenues Revenues	783822000	USD
CY2014Q4	us-gaap	Secured Debt SecuredDebt	1511700000	USD
CY2015Q2	us-gaap	Secured Debt SecuredDebt	1511700000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4838000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3441000	USD
CY2015Q2	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments	272000000	USD
CY2014Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	800000	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	89400	shares
CY2014Q2	us-gaap	Stockholders Equity StockholdersEquity	1409545000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1483242000	USD
CY2015Q2	us-gaap	Stockholders Equity StockholdersEquity	1514005000	USD
CY2014Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1410016000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1483671000	USD
CY2015Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1514393000	USD
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	32.66
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2900000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	31180000	USD
	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	61906000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	35676000	USD
	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	69976000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	67349000	USD
	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	134686000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	73112000	USD
	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	146284000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	128922000	USD
	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	349419000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	141116000	USD
	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	350676000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	21367000	USD
	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	49513000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	23257000	USD
	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	53155000	USD
CY2014Q2	us-gaap	Utility Revenue UtilityRevenue	303105000	USD
	us-gaap	Utility Revenue UtilityRevenue	740229000	USD
CY2015Q2	us-gaap	Utility Revenue UtilityRevenue	330830000	USD
	us-gaap	Utility Revenue UtilityRevenue	767237000	USD
CY2014Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	60463000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	60316000	shares
CY2015Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	62600000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	62744000	shares
CY2014Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60184000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60153000	shares
CY2015Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62281000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62299000	shares
	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Derivative Assets and Liabilities</font></div><div style="line-height:120%;padding-top:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Derivatives are recorded as either assets or liabilities on the Condensed Consolidated Balance Sheets measured at estimated fair value. In certain defined conditions, a derivative may be specifically designated as a hedge for a particular exposure. The accounting for a derivative depends on the intended use of such derivative and the resulting designation.</font></div><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Washington Utilities and Transportation Commission (UTC) and the Idaho Public Utilities Commission (IPUC) issued accounting orders authorizing Avista Utilities to offset energy commodity derivative assets or liabilities with a regulatory asset or liability. This accounting treatment is intended to defer the recognition of mark-to-market gains and losses on energy commodity transactions until the period of delivery. The orders provide for Avista Utilities to not recognize the unrealized gain or loss on utility derivative commodity instruments in the Condensed Consolidated Statements of Income. Realized gains or losses are recognized in the periods of delivery, subject to approval for recovery through retail rates. Realized gains and losses, subject to regulatory approval, result in adjustments to retail rates through purchased gas cost adjustments, the Energy Recovery Mechanism (ERM) in Washington, the Power Cost Adjustment (PCA) mechanism in Idaho, and periodic general rates cases. Regulatory assets are assessed regularly and are probable for recovery through future rates.</font></div><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Substantially all forward contracts to purchase or sell power and natural gas are recorded as derivative assets or liabilities at estimated fair value with an offsetting regulatory asset or liability. Contracts that are not considered derivatives are accounted for on the accrual basis until they are settled or realized, unless there is a decline in the fair value of the contract that is determined to be other-than-temporary.</font></div><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">For interest rate swap agreements, each period Avista Utilities records all mark-to-market gains and losses as assets and liabilities and records offsetting regulatory assets and liabilities, such that there is no income statement impact. Upon settlement of interest rate swaps, the regulatory asset or liability (included as part of long-term debt) is amortized as a component of interest expense over the term of the associated debt.</font></div></div>
	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Nature of Business</font></div><div style="line-height:120%;padding-top:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Avista Corp. is primarily an electric and natural gas utility with certain other business ventures. Avista Utilities is an operating division of Avista Corp., comprising the regulated utility operations in the Pacific Northwest. Avista Utilities provides electric distribution and transmission, and natural gas distribution services in parts of eastern Washington and northern Idaho. Avista Utilities also provides natural gas distribution service in parts of northeastern and southwestern Oregon. Avista Utilities has electric generating facilities in Washington, Idaho, Oregon and Montana. Avista Utilities also supplies electricity to a small number of customers in Montana, most of whom are employees who operate Avista Utilities' Noxon Rapids generating facility.</font></div><div style="line-height:120%;padding-top:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On July 1, 2014, Avista Corp. acquired Alaska Energy and Resources Company (AERC), and as of that date, AERC is a wholly-owned subsidiary of Avista Corp. The primary subsidiary of AERC is Alaska Electric Light and Power Company (AEL&P), comprising the regulated utility operations in Alaska. There are no AERC earnings included in the overall results of Avista Corp. in the first half of 2014. See Note 3 for information regarding the acquisition of AERC.</font></div><div style="line-height:120%;padding-top:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Avista Capital, Inc. (Avista Capital), a wholly owned subsidiary of Avista Corp., is the parent company of all of the subsidiary companies in the non-utility businesses, except Spokane Energy, LLC (Spokane Energy). During the first half of 2014, Avista Capital’s subsidiaries included Ecova, Inc. (Ecova), which was an </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">80.2 percent</font><font style="font-family:inherit;font-size:10pt;"> owned subsidiary prior to its disposition on June 30, 2014. Ecova was a provider of energy efficiency and other facility information and cost management programs and services for multi-site customers and utilities throughout North America. See Note 4 for information regarding the disposition of Ecova and Note 14 for business segment information.</font></div></div>
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications</font></div><div style="line-height:120%;padding-top:6px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior year amounts on the Company's Condensed Consolidated Statements of Cash Flows were reclassified to conform to the current year presentation. In the current year Condensed Consolidated Statements of Cash Flows, "Decrease (increase) in collateral posted for derivative instruments," and "Income taxes receivable," were added as their own line items. These were previously included in "Other current assets" in the operating activities section.</font></div></div>

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$AVA
AVISTA CORP Stock $ava

2015 Q2 Form 10-Q Financial Statement

#000010491815000104 Filed on August 05, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AVA AVISTA CORP Stock $ava

2015 Q2 Form 10-Q Financial Statement

#000010491815000104 Filed on August 05, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AVA
AVISTA CORP Stock $ava