2014 Q4 Form 10-K Financial Statement
#000010491816000185 Filed on February 24, 2016
Income Statement
| Concept | 2014 Q4 | 2014 Q3 | 2014 Q2 |
|---|---|---|---|
| Revenue | $411.8M | $301.6M | $312.6M |
| YoY Change | 1.87% | 4.17% | 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 | $35.40M | $34.40M | $33.90M |
| YoY Change | 2.91% | 1.47% | 1.8% |
| % of Gross Profit | |||
| Operating Expenses | $345.1M | $268.8M | $249.8M |
| YoY Change | 1.47% | 3.5% | -1.07% |
| Operating Profit | $66.75M | $32.76M | $62.73M |
| YoY Change | 4.05% | 9.84% | 14.12% |
| Interest Expense | -$17.70M | $18.64M | $18.55M |
| YoY Change | -11.5% | -2.74% | -4.58% |
| % of Operating Profit | -26.52% | 56.9% | 29.57% |
| Other Income/Expense, Net | $2.600M | $2.608M | $3.055M |
| YoY Change | 8.33% | 434.43% | 39.37% |
| Pretax Income | $51.60M | $17.83M | $47.96M |
| YoY Change | 10.97% | 50.44% | 24.42% |
| Income Tax | $21.00M | $7.301M | $16.69M |
| % Of Pretax Income | 40.7% | 40.95% | 34.8% |
| Net Earnings | $32.22M | $10.45M | $100.9M |
| YoY Change | 1.75% | -8.43% | 293.15% |
| Net Earnings / Revenue | 7.82% | 3.47% | 32.27% |
| Basic Earnings Per Share | $0.16 | $1.68 | |
| Diluted Earnings Per Share | $0.51 | $0.16 | $1.67 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 62.29M shares | 63.93M shares | 60.18M shares |
| Diluted Shares Outstanding | 62.67M shares | 64.24M shares | 60.46M shares |
Balance Sheet
| Concept | 2014 Q4 | 2014 Q3 | 2014 Q2 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $22.00M | $10.00M | $208.0M |
| YoY Change | -73.49% | -89.13% | 144.71% |
| Cash & Equivalents | $22.14M | $10.39M | $208.0M |
| Short-Term Investments | |||
| Other Short-Term Assets | $45.07M | $38.52M | $38.11M |
| YoY Change | -21.9% | -3.02% | 10.01% |
| Inventory | $66.36M | $69.94M | $49.44M |
| Prepaid Expenses | |||
| Receivables | $172.0M | $125.0M | $128.0M |
| Other Receivables | $44.00M | $8.000M | $0.00 |
| Total Short-Term Assets | $395.3M | $265.2M | $442.3M |
| YoY Change | -28.08% | -45.41% | -5.64% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $3.620B | $3.538B | $3.282B |
| YoY Change | 13.05% | 12.03% | 5.73% |
| Goodwill | $57.98M | $52.43M | $5.246M |
| YoY Change | -23.97% | -31.7% | -93.17% |
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $65.00M | $64.00M | $57.00M |
| YoY Change | 1.56% | -31.18% | -37.36% |
| Other Assets | $151.2M | $152.2M | $100.0M |
| YoY Change | -37.13% | -40.08% | -60.98% |
| Total Long-Term Assets | $4.306B | $4.071B | $3.760B |
| YoY Change | 24.37% | 3.96% | -3.07% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $395.3M | $265.2M | $442.3M |
| Total Long-Term Assets | $4.306B | $4.071B | $3.760B |
| Total Assets | $4.701B | $4.336B | $4.202B |
| YoY Change | 17.19% | -1.49% | -3.35% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $113.0M | $82.37M | $73.35M |
| YoY Change | -37.96% | -47.99% | -52.19% |
| Accrued Expenses | |||
| YoY Change | |||
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $105.0M | $35.00M | $152.0M |
| YoY Change | -38.6% | -46.97% | 58.33% |
| Long-Term Debt Due | $8.000M | $12.00M | $14.00M |
| YoY Change | -52.94% | -81.82% | -78.79% |
| Total Short-Term Liabilities | $385.3M | $270.8M | $464.3M |
| YoY Change | -38.39% | -50.78% | -20.28% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $1.532B | $1.464B | $1.320B |
| YoY Change | 11.74% | 6.16% | 1.93% |
| Other Long-Term Liabilities | $146.2M | $120.6M | $114.5M |
| YoY Change | 12.22% | -1.36% | -6.49% |
| Total Long-Term Liabilities | $146.2M | $120.6M | $114.5M |
| YoY Change | 12.22% | -1.36% | -6.49% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $385.3M | $270.8M | $464.3M |
| Total Long-Term Liabilities | $146.2M | $120.6M | $114.5M |
| Total Liabilities | $3.218B | $2.845B | $2.793B |
| YoY Change | 6.27% | -7.74% | -7.7% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $491.6M | $488.3M | $528.3M |
| YoY Change | 20.76% | 22.38% | 30.06% |
| Common Stock | $1.000B | $1.008B | $885.7M |
| YoY Change | 11.48% | 12.2% | -1.06% |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | |||
| YoY Change | |||
| Treasury Stock Shares | |||
| Shareholders Equity | $1.483B | $1.492B | $1.410B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $4.701B | $4.336B | $4.202B |
| YoY Change | 7.77% | -1.49% | -3.35% |
Cashflow Statement
| Concept | 2014 Q4 | 2014 Q3 | 2014 Q2 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | $32.22M | $10.45M | $100.9M |
| YoY Change | 1.75% | -8.43% | 293.15% |
| Depreciation, Depletion And Amortization | $35.40M | $34.40M | $33.90M |
| YoY Change | 2.91% | 1.47% | 1.8% |
| Cash From Operating Activities | $1.600M | $41.70M | $67.10M |
| YoY Change | -96.02% | -10.52% | 33.13% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$95.80M | -$93.50M | -$78.90M |
| YoY Change | 18.71% | 23.51% | 4.92% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | -$1.100M | $19.40M | $206.9M |
| YoY Change | -155.0% | -768.97% | 2855.71% |
| Cash From Investing Activities | -$96.90M | -$74.00M | $127.9M |
| YoY Change | 23.28% | -5.97% | -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 | 107.1M | -165.3M | -77.20M |
| YoY Change | 268.04% | -528.24% | -647.52% |
| NET CHANGE | |||
| Cash From Operating Activities | 1.600M | 41.70M | 67.10M |
| Cash From Investing Activities | -96.90M | -74.00M | 127.9M |
| Cash From Financing Activities | 107.1M | -165.3M | -77.20M |
| Net Change In Cash | 11.80M | -197.6M | 117.8M |
| YoY Change | -226.88% | -3140.0% | -3283.78% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $1.600M | $41.70M | $67.10M |
| Capital Expenditures | -$95.80M | -$93.50M | -$78.90M |
| Free Cash Flow | $97.40M | $135.2M | $146.0M |
| YoY Change | -19.44% | 10.55% | 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 |
| CY2015Q4 | ava |
Accumulated Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Tax
AccumulatedOtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossTax
|
3580000 | USD |
| CY2013 | ava |
Amortization Of Energy Contract
AmortizationOfEnergyContract
|
11414000 | USD |
| CY2014 | ava |
Amortization Of Energy Contract
AmortizationOfEnergyContract
|
12417000 | USD |
| CY2015 | ava |
Amortization Of Energy Contract
AmortizationOfEnergyContract
|
13508000 | USD |
| CY1998Q4 | ava |
Amount Borrowed To Acquire Long Term Fixed Rate Electric Capacity Contract
AmountBorrowedToAcquireLongTermFixedRateElectricCapacityContract
|
145000000 | USD |
| CY2014Q3 | ava |
Business Acquisition Adjusted Contract Price
BusinessAcquisitionAdjustedContractPrice
|
150909000 | USD |
| CY2014Q3 | ava |
Business Acquisition Contract Price
BusinessAcquisitionContractPrice
|
170000000 | USD |
| CY2014Q3 | ava |
Business Acquisition Contract Price Closing Adjustments
BusinessAcquisitionContractPriceClosingAdjustments
|
37000 | 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 | |
| CY2015 | ava |
Business Combination Numberof Trading Daysto Price Equity Consideration Share Price
BusinessCombinationNumberofTradingDaystoPriceEquityConsiderationSharePrice
|
10 | D |
| CY2014Q3 | ava |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Capital Lease Assets
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseAssets
|
71007000 | USD |
| CY2014Q3 | ava |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Electric Plant Heldfor Future Use
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedElectricPlantHeldforFutureUse
|
3711000 | USD |
| CY2014Q3 | ava |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Gross Accounts Receivable
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedGrossAccountsReceivable
|
3928000 | USD |
| CY2014Q3 | ava |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Non Utility Property
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentNonUtilityProperty
|
6660000 | USD |
| CY2014Q3 | ava |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Public Utilities Property Plantand Equipment Construction Workin Progress
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPublicUtilitiesPropertyPlantandEquipmentConstructionWorkinProgress
|
3440000 | USD |
| CY2014Q3 | ava |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Public Utilities Property Plantand Equipment Plantin Service
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPublicUtilitiesPropertyPlantandEquipmentPlantinService
|
113964000 | USD |
| ava |
Business Disposition Adjusted Contract Price
BusinessDispositionAdjustedContractPrice
|
339691000 | USD | |
| ava |
Business Disposition Contract Price Closing Adjustments
BusinessDispositionContractPriceClosingAdjustments
|
4103000 | USD | |
| CY2014 | ava |
Business Dispositions Tax Payments Made
BusinessDispositionsTaxPaymentsMade
|
74842000 | USD |
| CY2015 | ava |
Business Dispositions Tax Payments Made
BusinessDispositionsTaxPaymentsMade
|
590000 | USD |
| CY2014Q4 | ava |
Current Regulatory Asset For Utility Derivatives
CurrentRegulatoryAssetForUtilityDerivatives
|
29640000 | USD |
| CY2015Q4 | ava |
Current Regulatory Asset For Utility Derivatives
CurrentRegulatoryAssetForUtilityDerivatives
|
17260000 | USD |
| CY2013 | ava |
Decreaseincrease In Investmentsand Funds Held For Clients
DecreaseincreaseInInvestmentsandFundsHeldForClients
|
-1815000 | USD |
| CY2014 | ava |
Decreaseincrease In Investmentsand Funds Held For Clients
DecreaseincreaseInInvestmentsandFundsHeldForClients
|
18931000 | USD |
| CY2015 | ava |
Decreaseincrease In Investmentsand Funds Held For Clients
DecreaseincreaseInInvestmentsandFundsHeldForClients
|
0 | USD |
| CY2014Q4 | ava |
Deferred Income Tax Assets Power And Natural Gas Deferrals
DeferredIncomeTaxAssetsPowerAndNaturalGasDeferrals
|
3811000 | USD |
| CY2015Q4 | ava |
Deferred Income Tax Assets Power And Natural Gas Deferrals
DeferredIncomeTaxAssetsPowerAndNaturalGasDeferrals
|
12866000 | USD |
| CY2014Q4 | ava |
Deferred Tax Liabilities Loss On Reacquired Debt
DeferredTaxLiabilitiesLossOnReacquiredDebt
|
11484000 | USD |
| CY2015Q4 | ava |
Deferred Tax Liabilities Loss On Reacquired Debt
DeferredTaxLiabilitiesLossOnReacquiredDebt
|
14027000 | USD |
| CY2014Q4 | ava |
Deferred Tax Liabilities Settlement With Specific External Party
DeferredTaxLiabilitiesSettlementWithSpecificExternalParty
|
12458000 | USD |
| CY2015Q4 | ava |
Deferred Tax Liabilities Settlement With Specific External Party
DeferredTaxLiabilitiesSettlementWithSpecificExternalParty
|
12084000 | USD |
| CY2014Q4 | ava |
Deferred Tax Liabilityfor Regulatory Asseton Pensionand Other Postretirement Benefits
DeferredTaxLiabilityforRegulatoryAssetonPensionandOtherPostretirementBenefits
|
82515000 | USD |
| CY2015Q4 | ava |
Deferred Tax Liabilityfor Regulatory Asseton Pensionand Other Postretirement Benefits
DeferredTaxLiabilityforRegulatoryAssetonPensionandOtherPostretirementBenefits
|
82253000 | USD |
| CY2014Q4 | ava |
Deferredtaxassetsinterestrateswaps
Deferredtaxassetsinterestrateswaps
|
46903000 | USD |
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Deferredtaxassetsinterestrateswaps
Deferredtaxassetsinterestrateswaps
|
47009000 | USD |
| CY2014Q4 | ava |
Deferredtaxliabilityforregulatoryassetonutilitypropertyplantandequipment
Deferredtaxliabilityforregulatoryassetonutilitypropertyplantandequipment
|
36504000 | USD |
| CY2015Q4 | ava |
Deferredtaxliabilityforregulatoryassetonutilitypropertyplantandequipment
Deferredtaxliabilityforregulatoryassetonutilitypropertyplantandequipment
|
36917000 | USD |
| CY2013 | ava |
Depreciation And Amortization Expense
DepreciationAndAmortizationExpense
|
117755000 | USD |
| CY2014 | ava |
Depreciation And Amortization Expense
DepreciationAndAmortizationExpense
|
130180000 | USD |
| CY2015 | ava |
Depreciation And Amortization Expense
DepreciationAndAmortizationExpense
|
144194000 | USD |
| CY2013 | ava |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts
|
0 | USD |
| CY2014 | ava |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts
|
151550000 | USD |
| CY2015 | ava |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Taxes Netof Transaction Costs
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTaxesNetofTransactionCosts
|
706000 | USD |
| ava |
Discontinued Operation Transaction Expenses
DiscontinuedOperationTransactionExpenses
|
11100000 | USD | |
| CY2014Q2 | ava |
Disposal Group Including Discontinued Operation Accumulated Amortization
DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization
|
42266000 | USD |
| CY2014Q2 | ava |
Disposal Group Including Discontinued Operation Allowancefor Doubtful Accounts
DisposalGroupIncludingDiscontinuedOperationAllowanceforDoubtfulAccounts
|
410000 | USD |
| CY2014Q2 | ava |
Disposal Group Including Discontinued Operation Income Tax Receivable
DisposalGroupIncludingDiscontinuedOperationIncomeTaxReceivable
|
2548000 | USD |
| CY2014Q2 | ava |
Disposal Group Including Discontinued Operation Investmentsand Funds Heldfor Clients
DisposalGroupIncludingDiscontinuedOperationInvestmentsandFundsHeldforClients
|
114598000 | USD |
| CY2014Q2 | ava |
Disposal Group Including Discontinued Operations Client Fund Obligations
DisposalGroupIncludingDiscontinuedOperationsClientFundObligations
|
115333000 | USD |
| CY2014Q2 | ava |
Disposal Group Including Discontinued Operations Current Portionof Long Term Debt
DisposalGroupIncludingDiscontinuedOperationsCurrentPortionofLongTermDebt
|
67000 | USD |
| CY2015Q4 | ava |
Escrow Receivable
EscrowReceivable
|
13800000 | USD |
| CY2013 | ava |
Escrowreceivableincludedininvestingactivities
Escrowreceivableincludedininvestingactivities
|
0 | USD |
| CY2014 | ava |
Escrowreceivableincludedininvestingactivities
Escrowreceivableincludedininvestingactivities
|
13079000 | USD |
| CY2015 | ava |
Escrowreceivableincludedininvestingactivities
Escrowreceivableincludedininvestingactivities
|
0 | USD |
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Grant Proceeds From Outside Parties
GrantProceedsFromOutsideParties
|
3409000 | USD |
| CY2014 | ava |
Grant Proceeds From Outside Parties
GrantProceedsFromOutsideParties
|
2530000 | USD |
| CY2015 | ava |
Grant Proceeds From Outside Parties
GrantProceedsFromOutsideParties
|
2730000 | USD |
| CY2013 | ava |
Income Loss From Continuing Operations Excluding Acquired Entity
IncomeLossFromContinuingOperationsExcludingAcquiredEntity
|
104273000 | USD |
| CY2014 | ava |
Income Loss From Continuing Operations Excluding Acquired Entity
IncomeLossFromContinuingOperationsExcludingAcquiredEntity
|
116665000 | USD |
| CY2015 | ava |
Income Loss From Continuing Operations Excluding Acquired Entity
IncomeLossFromContinuingOperationsExcludingAcquiredEntity
|
111772000 | USD |
| CY2013 | ava |
Increase Decrease In Client Fund Obligations
IncreaseDecreaseInClientFundObligations
|
11278000 | USD |
| CY2014 | ava |
Increase Decrease In Client Fund Obligations
IncreaseDecreaseInClientFundObligations
|
16216000 | USD |
| CY2015 | ava |
Increase Decrease In Client Fund Obligations
IncreaseDecreaseInClientFundObligations
|
0 | USD |
| CY2013 | ava |
Interest Expense Including Affiliated Trusts
InterestExpenseIncludingAffiliatedTrusts
|
77585000 | USD |
| CY2014 | ava |
Interest Expense Including Affiliated Trusts
InterestExpenseIncludingAffiliatedTrusts
|
75752000 | USD |
| CY2015 | ava |
Interest Expense Including Affiliated Trusts
InterestExpenseIncludingAffiliatedTrusts
|
80441000 | USD |
| CY2013 | ava |
Interest On Regulatory Deferrals
InterestOnRegulatoryDeferrals
|
126000 | USD |
| CY2014 | ava |
Interest On Regulatory Deferrals
InterestOnRegulatoryDeferrals
|
220000 | USD |
| CY2015 | ava |
Interest On Regulatory Deferrals
InterestOnRegulatoryDeferrals
|
48000 | USD |
| CY2014Q2 | ava |
Liabilities Of Disposal Group Including Discontinued Operation Lineof Credit Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationLineofCreditNoncurrent
|
40000000 | USD |
| CY2014Q4 | ava |
Long Term Debt Before Current Portion And Bonds Held By Company
LongTermDebtBeforeCurrentPortionAndBondsHeldByCompany
|
1570826000 | USD |
| CY2015Q4 | ava |
Long Term Debt Before Current Portion And Bonds Held By Company
LongTermDebtBeforeCurrentPortionAndBondsHeldByCompany
|
1656978000 | USD |
| CY2015Q4 | ava |
Maximum Dividends Allowedby Debt Covenants
MaximumDividendsAllowedbyDebtCovenants
|
385300000 | USD |
| CY2013 | ava |
Noncash Change In Redeemable Noncontrolling Interests
NoncashChangeInRedeemableNoncontrollingInterests
|
10704000 | USD |
| CY2014 | ava |
Noncash Change In Redeemable Noncontrolling Interests
NoncashChangeInRedeemableNoncontrollingInterests
|
-15873000 | USD |
| CY2015 | ava |
Noncash Change In Redeemable Noncontrolling Interests
NoncashChangeInRedeemableNoncontrollingInterests
|
0 | USD |
| CY2014Q4 | ava |
Noncurrent Regulatory Asset For Utility Derivatives
NoncurrentRegulatoryAssetForUtilityDerivatives
|
24483000 | USD |
| CY2015Q4 | ava |
Noncurrent Regulatory Asset For Utility Derivatives
NoncurrentRegulatoryAssetForUtilityDerivatives
|
32420000 | USD |
| CY2015 | ava |
Number Of Days Canadian Currency Prices Are Settled With Us Dollars
NumberOfDaysCanadianCurrencyPricesAreSettledWithUSDollars
|
P60D | |
| CY2015Q4 | ava |
Numberof Months Receivable Heldin Escrow
NumberofMonthsReceivableHeldinEscrow
|
15 | M |
| CY2013 | ava |
Other Comprehensive Income Reclassification Adjustment From Aoci For Sale Securities Netof Tax
OtherComprehensiveIncomeReclassificationAdjustmentFromAOCIForSaleSecuritiesNetofTax
|
0 | USD |
| CY2014 | ava |
Other Comprehensive Income Reclassification Adjustment From Aoci For Sale Securities Netof Tax
OtherComprehensiveIncomeReclassificationAdjustmentFromAOCIForSaleSecuritiesNetofTax
|
462000 | USD |
| CY2015 | ava |
Other Comprehensive Income Reclassification Adjustment From Aoci For Sale Securities Netof Tax
OtherComprehensiveIncomeReclassificationAdjustmentFromAOCIForSaleSecuritiesNetofTax
|
0 | USD |
| CY2013 | ava |
Other Comprehensive Income Reclassification Adjustmentfrom Aoc Ifor Saleof Securities Tax
OtherComprehensiveIncomeReclassificationAdjustmentfromAOCIforSaleofSecuritiesTax
|
0 | USD |
| CY2014 | ava |
Other Comprehensive Income Reclassification Adjustmentfrom Aoc Ifor Saleof Securities Tax
OtherComprehensiveIncomeReclassificationAdjustmentfromAOCIforSaleofSecuritiesTax
|
273000 | USD |
| CY2015 | ava |
Other Comprehensive Income Reclassification Adjustmentfrom Aoc Ifor Saleof Securities Tax
OtherComprehensiveIncomeReclassificationAdjustmentfromAOCIforSaleofSecuritiesTax
|
0 | USD |
| CY2013 | ava |
Other Operating Expenses
OtherOperatingExpenses
|
314879000 | USD |
| CY2014 | ava |
Other Operating Expenses
OtherOperatingExpenses
|
317250000 | USD |
| CY2015 | ava |
Other Operating Expenses
OtherOperatingExpenses
|
332747000 | USD |
| CY2015Q4 | ava |
Pending Regulatory Treatment Liability
PendingRegulatoryTreatmentLiability
|
3423000 | USD |
| ava |
Proceedsfrom Divestitureof Business Before Tax Payments
ProceedsfromDivestitureofBusinessBeforeTaxPayments
|
219180000 | USD | |
| CY2014 | ava |
Proceedsfrom Divestitureof Business Before Tax Payments
ProceedsfromDivestitureofBusinessBeforeTaxPayments
|
205400000 | USD |
| CY2014Q4 | ava |
Property Plant And Equipment Total
PropertyPlantAndEquipmentTotal
|
4971623000 | USD |
| CY2015Q4 | ava |
Property Plant And Equipment Total
PropertyPlantAndEquipmentTotal
|
5357584000 | USD |
| CY2014Q4 | ava |
Receivables Long Term Contracts Or Programs Noncurrent
ReceivablesLongTermContractsOrProgramsNoncurrent
|
28202000 | USD |
| CY2015Q4 | ava |
Receivables Long Term Contracts Or Programs Noncurrent
ReceivablesLongTermContractsOrProgramsNoncurrent
|
14694000 | USD |
| CY2015Q4 | ava |
Receiving Power Period Of Time Years
ReceivingPowerPeriodOfTimeYears
|
32.5 | years |
| CY2015Q4 | ava |
Regulatory Asset Earning Return
RegulatoryAssetEarningReturn
|
190643000 | USD |
| CY2014Q4 | ava |
Regulatory Asset For Interest Rate Swap Agreements Noncurrent
RegulatoryAssetForInterestRateSwapAgreementsNoncurrent
|
77063000 | USD |
| CY2015Q4 | ava |
Regulatory Asset For Interest Rate Swap Agreements Noncurrent
RegulatoryAssetForInterestRateSwapAgreementsNoncurrent
|
83973000 | USD |
| CY2014Q4 | ava |
Regulatory Assets For Pensions And Other Postretirement Benefits Noncurrent
RegulatoryAssetsForPensionsAndOtherPostretirementBenefitsNoncurrent
|
235758000 | USD |
| CY2015Q4 | ava |
Regulatory Assets For Pensions And Other Postretirement Benefits Noncurrent
RegulatoryAssetsForPensionsAndOtherPostretirementBenefitsNoncurrent
|
235009000 | USD |
| CY2015Q4 | ava |
Regulatory Liability Earning Return
RegulatoryLiabilityEarningReturn
|
302989000 | USD |
| CY2014Q4 | ava |
Regulatory Liability For Utility Plant Retirement Costs Noncurrent
RegulatoryLiabilityForUtilityPlantRetirementCostsNoncurrent
|
254140000 | USD |
| CY2015Q4 | ava |
Regulatory Liability For Utility Plant Retirement Costs Noncurrent
RegulatoryLiabilityForUtilityPlantRetirementCostsNoncurrent
|
261594000 | USD |
| CY2015Q4 | ava |
Remaining Amounts Of Regulatory Liabilities For Which No Interest During Recovery Period Is Provided
RemainingAmountsOfRegulatoryLiabilitiesForWhichNoInterestDuringRecoveryPeriodIsProvided
|
27471000 | USD |
| CY2013 | ava |
Revenues Excluding Acquired Entity
RevenuesExcludingAcquiredEntity
|
1441744000 | USD |
| CY2014 | ava |
Revenues Excluding Acquired Entity
RevenuesExcludingAcquiredEntity
|
1450918000 | USD |
| CY2015 | ava |
Revenues Excluding Acquired Entity
RevenuesExcludingAcquiredEntity
|
1439807000 | USD |
| CY2014Q4 | ava |
Securedand Unsecured Debt
SecuredandUnsecuredDebt
|
1526700000 | USD |
| CY2015Q4 | ava |
Securedand Unsecured Debt
SecuredandUnsecuredDebt
|
1626700000 | USD |
| CY2014Q4 | ava |
Settled Interest Rate Swaps
SettledInterestRateSwaps
|
17541000 | USD |
| CY2015Q4 | ava |
Settled Interest Rate Swaps
SettledInterestRateSwaps
|
26515000 | USD |
| CY2013 | ava |
Stock Issued During Period Value Acquisitions Netof Issuance Costs
StockIssuedDuringPeriodValueAcquisitionsNetofIssuanceCosts
|
0 | USD |
| CY2014 | ava |
Stock Issued During Period Value Acquisitions Netof Issuance Costs
StockIssuedDuringPeriodValueAcquisitionsNetofIssuanceCosts
|
149625000 | USD |
| CY2015 | ava |
Stock Issued During Period Value Acquisitions Netof Issuance Costs
StockIssuedDuringPeriodValueAcquisitionsNetofIssuanceCosts
|
0 | USD |
| CY2015Q4 | ava |
Tax Credit Carryforwards Netof Valuation Allowance
TaxCreditCarryforwardsNetofValuationAllowance
|
12400000 | USD |
| CY2013 | ava |
Tax Effect Of Regulatory Treatment Of Utility Plant Differences
TaxEffectOfRegulatoryTreatmentOfUtilityPlantDifferences
|
3532000 | USD |
| CY2014 | ava |
Tax Effect Of Regulatory Treatment Of Utility Plant Differences
TaxEffectOfRegulatoryTreatmentOfUtilityPlantDifferences
|
4008000 | USD |
| CY2015 | ava |
Tax Effect Of Regulatory Treatment Of Utility Plant Differences
TaxEffectOfRegulatoryTreatmentOfUtilityPlantDifferences
|
4358000 | USD |
| CY2013 | ava |
Tax Effect Of Regulatory Treatment Of Utility Plant Differences Percent
TaxEffectOfRegulatoryTreatmentOfUtilityPlantDifferencesPercent
|
0.022 | |
| CY2014 | ava |
Tax Effect Of Regulatory Treatment Of Utility Plant Differences Percent
TaxEffectOfRegulatoryTreatmentOfUtilityPlantDifferencesPercent
|
0.021 | |
| CY2015 | ava |
Tax Effect Of Regulatory Treatment Of Utility Plant Differences Percent
TaxEffectOfRegulatoryTreatmentOfUtilityPlantDifferencesPercent
|
0.023 | |
| ava |
Transaction Expenses Withheldfrom Sales Proceeds
TransactionExpensesWithheldfromSalesProceeds
|
5461000 | USD | |
| CY2013 | ava |
Utility Power Resources
UtilityPowerResources
|
524810000 | USD |
| CY2014 | ava |
Utility Power Resources
UtilityPowerResources
|
556915000 | USD |
| CY2015 | ava |
Utility Power Resources
UtilityPowerResources
|
511937000 | USD |
| CY2015 | dei |
Amendment Flag
AmendmentFlag
|
false | |
| CY2015 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
| CY2015 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
FY | |
| CY2015 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2015 | |
| CY2015 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2015-12-31 | |
| CY2015 | dei |
Document Type
DocumentType
|
10-K | |
| CY2015 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0000104918 | |
| CY2016Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
62494881 | shares |
| CY2015 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
| CY2015 | dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | |
| CY2015Q2 | dei |
Entity Public Float
EntityPublicFloat
|
1909309138 | USD |
| CY2015 | dei |
Entity Registrant Name
EntityRegistrantName
|
AVISTA CORP | |
| CY2015 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
| CY2015 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
Yes | |
| CY2015 | dei |
Trading Symbol
TradingSymbol
|
ava | |
| CY2014Q4 | us-gaap |
Accounts Notes And Loans Receivable Net Current
AccountsNotesAndLoansReceivableNetCurrent
|
171925000 | USD |
| CY2015Q4 | us-gaap |
Accounts Notes And Loans Receivable Net Current
AccountsNotesAndLoansReceivableNetCurrent
|
169413000 | USD |
| CY2014Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
112974000 | USD |
| CY2015Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
114349000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
41000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
29000 | USD |
| CY2013Q4 | us-gaap |
Assets
Assets
|
4011533000 | USD |
| CY2014Q4 | us-gaap |
Assets
Assets
|
4700971000 | USD |
| CY2015Q4 | us-gaap |
Assets
Assets
|
4906649000 | USD |
| CY2014Q4 | us-gaap |
Assets Current
AssetsCurrent
|
395347000 | USD |
| CY2015Q4 | us-gaap |
Assets Current
AssetsCurrent
|
306046000 | USD |
| CY2014Q4 | us-gaap |
Assets Held In Trust Noncurrent
AssetsHeldInTrustNoncurrent
|
1600000 | USD |
| CY2014Q2 | us-gaap |
Assets Of Disposal Group Including Discontinued Operation
AssetsOfDisposalGroupIncludingDiscontinuedOperation
|
367020000 | USD |
| CY2014Q2 | us-gaap |
Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
254056000 | USD |
| CY2014Q3 | us-gaap |
Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued
BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
|
4500014 | shares |
| CY2014Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
-7888000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
-6650000 | USD |
| CY2014Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-7888000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-6650000 | USD |
| CY2013 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
5037000 | USD |
| CY2014 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
6007000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
6914000 | USD |
| CY2012Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
44155000 | USD |
| CY2013Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
44309000 | USD |
| CY2014Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
4888000 | USD |
| CY2015Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
4530000 | USD |
| CY2013 | us-gaap |
Amortization Of Financing Costs
AmortizationOfFinancingCosts
|
3813000 | USD |
| CY2014 | us-gaap |
Amortization Of Financing Costs
AmortizationOfFinancingCosts
|
3692000 | USD |
| CY2015 | us-gaap |
Amortization Of Financing Costs
AmortizationOfFinancingCosts
|
3526000 | USD |
| CY2013 | us-gaap |
Amortization Of Power Contracts Emission Credits
AmortizationOfPowerContractsEmissionCredits
|
2450000 | USD |
| CY2014 | us-gaap |
Amortization Of Power Contracts Emission Credits
AmortizationOfPowerContractsEmissionCredits
|
2450000 | USD |
| CY2015 | us-gaap |
Amortization Of Power Contracts Emission Credits
AmortizationOfPowerContractsEmissionCredits
|
2450000 | USD |
| CY2015Q4 | us-gaap |
Amount Of Regulatory Costs Not Yet Approved
AmountOfRegulatoryCostsNotYetApproved
|
4924000 | USD |
| CY2012Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
3168000 | USD |
| CY2013Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
2859000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
3028000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
15997000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
-46000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
210000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
459000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
0 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
0 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
12539000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
263000 | USD |
| CY2014Q4 | us-gaap |
Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued
BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
|
1427 | shares |
| CY2014Q3 | us-gaap |
Business Acquisition Share Price
BusinessAcquisitionSharePrice
|
33.35 | |
| CY2014Q4 | us-gaap |
Business Acquisition Share Price
BusinessAcquisitionSharePrice
|
30.71 | |
| CY2013 | us-gaap |
Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
|
119513000 | USD |
| CY2014 | us-gaap |
Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
|
198565000 | USD |
| CY2015 | us-gaap |
Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
|
123249000 | USD |
| CY2013 | us-gaap |
Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
|
1483338000 | USD |
| CY2014 | us-gaap |
Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
|
1497385000 | USD |
| CY2015 | us-gaap |
Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
|
1484776000 | USD |
| us-gaap |
Business Combination Consideration Transferred1
BusinessCombinationConsiderationTransferred1
|
154911000 | USD | |
| CY2014Q3 | us-gaap |
Business Combination Consideration Transferred Equity Interests Issued And Issuable
BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
|
150075000 | USD |
| CY2014Q4 | us-gaap |
Business Combination Consideration Transferred Equity Interests Issued And Issuable
BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
|
44000 | USD |
| CY2013 | us-gaap |
Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
|
0 | USD |
| CY2014 | us-gaap |
Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
|
3152000 | USD |
| CY2015 | us-gaap |
Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
|
6308000 | USD |
| CY2013 | us-gaap |
Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
|
0 | USD |
| CY2014 | us-gaap |
Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
|
21644000 | USD |
| CY2015 | us-gaap |
Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
|
44969000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
|
283147000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Capital Lease Obligation
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation
|
68840000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
|
19704000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets
|
26571000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Other
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
|
999000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
|
3851000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities
|
7280000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accounts Payable
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
|
700000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Long Term Debt
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt
|
3773000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Other
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
|
2807000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
|
2017000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
|
128236000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
|
154911000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Assets
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets
|
68165000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities
|
14889000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Long Term Debt
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
|
37227000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
|
5368000 | USD |
| CY2014Q3 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
|
188411000 | USD |
| CY2013 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
12723000 | USD |
| CY2014 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
26959000 | USD |
| CY2015 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
35248000 | USD |
| CY2014Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
74149000 | USD |
| CY2015Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
68601000 | USD |
| CY2013 | us-gaap |
Cash Acquired In Excess Of Payments To Acquire Business
CashAcquiredInExcessOfPaymentsToAcquireBusiness
|
0 | USD |
| CY2014 | us-gaap |
Cash Acquired In Excess Of Payments To Acquire Business
CashAcquiredInExcessOfPaymentsToAcquireBusiness
|
15007000 | USD |
| CY2012Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
75464000 | USD |
| CY2013Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
82574000 | USD |
| CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
22143000 | USD |
| CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
10484000 | USD |
| CY2013 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
7110000 | USD |
| CY2014 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-60431000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-11659000 | USD |
| CY2014Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2015Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2013 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.22 | |
| CY2014 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.27 | |
| CY2015 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.32 | |
| CY2014Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
0 | |
| CY2015Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
0 | |
| CY2014Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
200000000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
200000000 | shares |
| CY2014Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
62243374 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
62312651 | shares |
| CY2014Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
999960000 | USD |
| CY2015Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
1004336000 | USD |
| CY2013 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
111958000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
189972000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
124465000 | USD |
| CY2013 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
1217000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
236000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
90000 | USD |
| CY2013 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
113175000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
190208000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
124555000 | USD |
| CY2013 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
1210655000 | USD |
| CY2014Q1 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
356236000 | USD |
| CY2014Q2 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
249849000 | USD |
| CY2014Q3 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
268796000 | USD |
| CY2014Q4 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
345093000 | USD |
| CY2014 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
1219974000 | USD |
| CY2015Q1 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
356915000 | USD |
| CY2015Q2 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
279972000 | USD |
| CY2015Q3 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
277737000 | USD |
| CY2015Q4 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
316938000 | USD |
| CY2015 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
1231562000 | USD |
| CY2013 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
37743000 | USD |
| CY2014 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
-67059000 | USD |
| CY2015 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
12212000 | USD |
| CY2013Q4 | us-gaap |
Debt Instrument Interest Rate Stated Percentage
DebtInstrumentInterestRateStatedPercentage
|
0.0111 | |
| CY2014Q4 | us-gaap |
Debt Instrument Interest Rate Stated Percentage
DebtInstrumentInterestRateStatedPercentage
|
0.0111 | |
| CY2015Q4 | us-gaap |
Debt Instrument Interest Rate Stated Percentage
DebtInstrumentInterestRateStatedPercentage
|
0.0129 | |
| CY1998Q4 | us-gaap |
Debt Instrument Interest Rate Stated Percentage
DebtInstrumentInterestRateStatedPercentage
|
0.0845 | |
| CY2013 | us-gaap |
Debt Instrument Interest Rate Stated Percentage Rate Range Maximum
DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
|
0.0119 | |
| CY2014 | us-gaap |
Debt Instrument Interest Rate Stated Percentage Rate Range Maximum
DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
|
0.0111 | |
| CY2015 | us-gaap |
Debt Instrument Interest Rate Stated Percentage Rate Range Maximum
DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
|
0.0129 | |
| CY2013 | us-gaap |
Debt Instrument Interest Rate Stated Percentage Rate Range Minimum
DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
|
0.0111 | |
| CY2014Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
1122000 | USD |
| CY2015 | us-gaap |
Debt Instrument Interest Rate Stated Percentage Rate Range Minimum
DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
|
0.0111 | |
| CY2014 | us-gaap |
Debt Instrument Interest Rate Stated Percentage Rate Range Minimum
DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
|
0.011 | |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
46906000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
47010000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
710342000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
747477000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
3021000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
7399000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
654321000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
723661000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
956000 | USD |
| CY2013 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
23532000 | USD |
| CY2014 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
144269000 | USD |
| CY2015 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
51801000 | USD |
| CY2014Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
856900000 | USD |
| CY2015Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
935042000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
169497000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
190427000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
161352000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
187565000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Net Current
DeferredTaxAssetsNetCurrent
|
14794000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Net Current
DeferredTaxAssetsNetCurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
20583000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
29471000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
100412000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
101240000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
15080000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
15011000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther
|
10796000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther
|
10354000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
|
72324000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
|
75716000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
8145000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
2862000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
695548000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
747477000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets
DeferredTaxLiabilitiesRegulatoryAssets
|
9691000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets
DeferredTaxLiabilitiesRegulatoryAssets
|
11691000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
|
7500000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
|
400000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
9700000 | USD |
| CY2015 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
500000 | USD |
| CY2013 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
6279000 | USD |
| CY2014 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
6862000 | USD |
| CY2015 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
8011000 | USD |
| CY2013 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
581000 | USD |
| CY2014 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
610000 | USD |
| CY2015 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
695000 | USD |
| CY2013 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
133189000 | USD |
| CY2014 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
138337000 | USD |
| CY2015 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
147835000 | USD |
| CY2014Q4 | us-gaap |
Derivative Assets Liabilities At Fair Value Net
DerivativeAssetsLiabilitiesAtFairValueNet
|
-86355000 | USD |
| CY2015Q4 | us-gaap |
Derivative Assets Liabilities At Fair Value Net
DerivativeAssetsLiabilitiesAtFairValueNet
|
-85091000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Amount Offset Against Collateral Net
DerivativeFairValueAmountOffsetAgainstCollateralNet
|
44390000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Amount Offset Against Collateral Net
DerivativeFairValueAmountOffsetAgainstCollateralNet
|
48556000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
99045000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
76865000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
|
229790000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
|
210512000 | USD |
| CY2013 | us-gaap |
Dilutive Securities
DilutiveSecurities
|
-229000 | USD |
| CY2014 | us-gaap |
Dilutive Securities
DilutiveSecurities
|
5000 | USD |
| CY2015 | us-gaap |
Dilutive Securities
DilutiveSecurities
|
0 | USD |
| CY2013 | us-gaap |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
|
0 | USD |
| CY2014 | us-gaap |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
|
160612000 | USD |
| CY2015 | us-gaap |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
|
777000 | USD |
| us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
74800000 | USD | |
| CY2014 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
69700000 | USD |
| CY2013 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Before Income Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
|
13177000 | USD |
| CY2014 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Before Income Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
|
156025000 | USD |
| CY2015 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Before Income Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
|
706000 | USD |
| CY2013 | us-gaap |
Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
|
5216000 | USD |
| CY2014 | us-gaap |
Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
|
83614000 | USD |
| CY2015 | us-gaap |
Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
|
-4441000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Net
DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet
|
32070000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Accounts Payable
DisposalGroupIncludingDiscontinuedOperationAccountsPayable
|
72453000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
112964000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Cash And Cash Equivalents
DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
|
95932000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Consideration
DisposalGroupIncludingDiscontinuedOperationConsideration
|
335000000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Consideration
DisposalGroupIncludingDiscontinuedOperationConsideration
|
335000000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Goodwill1
DisposalGroupIncludingDiscontinuedOperationGoodwill1
|
71123000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Intangible Assets
DisposalGroupIncludingDiscontinuedOperationIntangibleAssets
|
37185000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Other Current Assets
DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets
|
8908000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Other Current Liabilities
DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities
|
35329000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Other Noncurrent Assets
DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets
|
4656000 | USD |
| CY2014Q2 | us-gaap |
Disposal Group Including Discontinued Operation Other Noncurrent Liabilities
DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities
|
2117000 | USD |
| CY2013 | us-gaap |
Disposal Group Including Discontinued Operation Revenue
DisposalGroupIncludingDiscontinuedOperationRevenue
|
176761000 | USD |
| CY2014 | us-gaap |
Disposal Group Including Discontinued Operation Revenue
DisposalGroupIncludingDiscontinuedOperationRevenue
|
87534000 | USD |
| CY2015 | us-gaap |
Disposal Group Including Discontinued Operation Revenue
DisposalGroupIncludingDiscontinuedOperationRevenue
|
0 | USD |
| CY2013 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.85 | |
| CY2014 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
3.12 | |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.98 | |
| CY2013 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.85 | |
| CY2014Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.81 | |
| CY2014Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.67 | |
| CY2014Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.16 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.51 | |
| CY2014 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
3.10 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.74 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.40 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.21 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.61 | |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.97 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.357 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.376 | |
| CY2015Q4 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
33859000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
118080000 | USD |
| CY2013 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
162347000 | USD |
| CY2014Q3 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
10506000 | USD |
| CY2014Q4 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
30581000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
119817000 | USD |
| CY2015Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
46449000 | USD |
| CY2015Q2 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
25050000 | USD |
| CY2015Q3 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
12722000 | USD |
| CY2013 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
-3378000 | USD |
| CY2014 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
276000 | USD |
| CY2014Q4 | us-gaap |
Goodwill
Goodwill
|
57976000 | USD |
| CY2015Q4 | us-gaap |
Goodwill
Goodwill
|
57672000 | USD |
| CY2015 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
-637000 | USD |
| CY2013Q4 | us-gaap |
Goodwill
Goodwill
|
76257000 | USD |
| CY2015 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.363 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0.013 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0.001 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0.006 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.005 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.002 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.004 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
-0.007 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
0.006 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
-0.005 | |
| CY2013 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.010 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.002 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.005 | |
| CY2013 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
1763000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
2102000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
2420000 | USD |
| CY2014Q4 | us-gaap |
Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
|
18045000 | USD |
| CY2015Q4 | us-gaap |
Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
|
14268000 | USD |
| CY2014Q4 | us-gaap |
Energy Marketing Contracts Assets Current
EnergyMarketingContractsAssetsCurrent
|
1525000 | USD |
| CY2015Q4 | us-gaap |
Energy Marketing Contracts Assets Current
EnergyMarketingContractsAssetsCurrent
|
683000 | USD |
| CY2014Q4 | us-gaap |
Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
|
28731000 | USD |
| CY2015Q4 | us-gaap |
Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
|
12774000 | USD |
| CY2015Q4 | us-gaap |
Equity Method Investment Ownership Percentage
EquityMethodInvestmentOwnershipPercentage
|
1 | |
| CY2013 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
55565000 | USD |
| CY2014 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
58250000 | USD |
| CY2015 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
59173000 | USD |
| CY2014Q3 | us-gaap |
Goodwill
Goodwill
|
52426000 | USD |
| CY2014 | us-gaap |
Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
|
52730000 | USD |
| CY2014 | us-gaap |
Goodwill Purchase Accounting Adjustments
GoodwillPurchaseAccountingAdjustments
|
112000 | USD |
| CY2015 | us-gaap |
Goodwill Purchase Accounting Adjustments
GoodwillPurchaseAccountingAdjustments
|
-304000 | USD |
| CY2014 | us-gaap |
Goodwill Written Off Related To Sale Of Business Unit
GoodwillWrittenOffRelatedToSaleOfBusinessUnit
|
71123000 | USD |
| CY2013 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
104273000 | USD |
| CY2014Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
47476000 | USD |
| CY2014Q2 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
31254000 | USD |
| CY2015 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
5147000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
192106000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
185619000 | USD |
| CY2013 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
104333000 | USD |
| CY2014Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
47466000 | USD |
| CY2014Q2 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
31270000 | USD |
| CY2014Q3 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
10526000 | USD |
| CY2014Q4 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
30604000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
119866000 | USD |
| CY2015Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
46462000 | USD |
| CY2015Q2 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
25078000 | USD |
| CY2015Q3 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
12754000 | USD |
| CY2015Q4 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
33876000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
118170000 | USD |
| CY2013 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.74 | |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.94 | |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.90 | |
| CY2013 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.74 | |
| CY2014Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.79 | |
| CY2014Q2 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.52 | |
| CY2014Q3 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.16 | |
| CY2014Q4 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.48 | |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.93 | |
| CY2015Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.74 | |
| CY2015Q2 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.40 | |
| CY2015Q3 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.21 | |
| CY2015Q4 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.54 | |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.89 | |
| CY2013 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
7961000 | USD |
| CY2014Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
1515000 | USD |
| CY2014Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
69312000 | USD |
| CY2014Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-55000 | USD |
| CY2014Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
1639000 | USD |
| CY2014 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
72411000 | USD |
| CY2015Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
| CY2015Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
196000 | USD |
| CY2015Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
289000 | USD |
| CY2015Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
4662000 | USD |
| CY2013 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
6804000 | USD |
| CY2014Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
1023000 | USD |
| CY2014Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
69617000 | USD |
| CY2014Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-55000 | USD |
| CY2014Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
1639000 | USD |
| CY2014 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
72224000 | USD |
| CY2015Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
0 | USD |
| CY2015Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
196000 | USD |
| CY2015Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
289000 | USD |
| CY2015Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
4662000 | USD |
| CY2015 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
5147000 | USD |
| CY2013 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.11 | |
| CY2014 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
1.18 | |
| CY2015 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.08 | |
| CY2013 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.11 | |
| CY2014Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.02 | |
| CY2014Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
1.15 | |
| CY2014Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.00 | |
| CY2014Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.03 | |
| CY2014 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
1.17 | |
| CY2015Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.00 | |
| CY2015Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.00 | |
| CY2015Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.00 | |
| CY2015Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.07 | |
| CY2015 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.08 | |
| CY2013 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
58014000 | USD |
| CY2014 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
72240000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
67449000 | USD |
| CY2013 | us-gaap |
Income Tax Reconciliation Deductions Qualified Production Activities
IncomeTaxReconciliationDeductionsQualifiedProductionActivities
|
2033000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation Deductions Qualified Production Activities
IncomeTaxReconciliationDeductionsQualifiedProductionActivities
|
169000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Deductions Qualified Production Activities
IncomeTaxReconciliationDeductionsQualifiedProductionActivities
|
1198000 | USD |
| CY2013 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
56821000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
67237000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
64967000 | USD |
| CY2013 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-755000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-446000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-698000 | USD |
| CY2013 | us-gaap |
Income Tax Reconciliation Prior Year Income Taxes
IncomeTaxReconciliationPriorYearIncomeTaxes
|
-1104000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation Prior Year Income Taxes
IncomeTaxReconciliationPriorYearIncomeTaxes
|
1104000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Prior Year Income Taxes
IncomeTaxReconciliationPriorYearIncomeTaxes
|
-992000 | USD |
| CY2013 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
1553000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
506000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
1012000 | USD |
| CY2013 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
44772000 | USD |
| CY2014 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
45416000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-9961000 | USD |
| CY2014Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
43893000 | USD |
| CY2015Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
24121000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Accounts And Notes Receivable
IncreaseDecreaseInAccountsAndNotesReceivable
|
-32675000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accounts And Notes Receivable
IncreaseDecreaseInAccountsAndNotesReceivable
|
16425000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts And Notes Receivable
IncreaseDecreaseInAccountsAndNotesReceivable
|
-10538000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-8389000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-12562000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-8138000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Deposit Other Assets
IncreaseDecreaseInDepositOtherAssets
|
-16073000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Deposit Other Assets
IncreaseDecreaseInDepositOtherAssets
|
-23301000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Deposit Other Assets
IncreaseDecreaseInDepositOtherAssets
|
-13301000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-5006000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-36110000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
19772000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
2509000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-19394000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
12208000 | USD |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
407000 | shares |
| CY2013 | us-gaap |
Interest Expense
InterestExpense
|
77118000 | USD |
| CY2014 | us-gaap |
Interest Expense
InterestExpense
|
75302000 | USD |
| CY2015 | us-gaap |
Interest Expense
InterestExpense
|
79968000 | USD |
| CY2013 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
467000 | USD |
| CY2014 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
450000 | USD |
| CY2015 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
473000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
2608000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-7117000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
2338000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
8827000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
32060000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-6471000 | USD |
| CY2013 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
37000 | shares |
| CY2014 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
255000 | shares |
| CY2013 | us-gaap |
Interest Paid
InterestPaid
|
75411000 | USD |
| CY2014 | us-gaap |
Interest Paid
InterestPaid
|
73526000 | USD |
| CY2015 | us-gaap |
Interest Paid
InterestPaid
|
79673000 | USD |
| CY2014Q4 | us-gaap |
Inventory Net
InventoryNet
|
66356000 | USD |
| CY2015Q4 | us-gaap |
Inventory Net
InventoryNet
|
54148000 | USD |
| CY2014Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
32483000 | USD |
| CY2015Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
37101000 | USD |
| CY2013 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
754000 | USD |
| CY2014 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
987000 | USD |
| CY2015 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
653000 | USD |
| CY2014Q4 | us-gaap |
Investments And Other Noncurrent Assets
InvestmentsAndOtherNoncurrentAssets
|
42016000 | USD |
| CY2015Q4 | us-gaap |
Investments And Other Noncurrent Assets
InvestmentsAndOtherNoncurrentAssets
|
50750000 | USD |
| CY2014Q4 | us-gaap |
Investments In Affiliates Subsidiaries Associates And Joint Ventures
InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
|
11547000 | USD |
| CY2015Q4 | us-gaap |
Investments In Affiliates Subsidiaries Associates And Joint Ventures
InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
|
11547000 | USD |
| CY2015Q4 | us-gaap |
Jointly Owned Utility Plant Proportionate Ownership Share
JointlyOwnedUtilityPlantProportionateOwnershipShare
|
0.15 | |
| CY2015Q4 | 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 |
| CY2015Q4 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Noncurrent
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustNoncurrent
|
51547000 | USD |
| CY2014Q4 | us-gaap |
Liabilities
Liabilities
|
3217729000 | USD |
| CY2015Q4 | us-gaap |
Liabilities
Liabilities
|
3378362000 | USD |
| CY2014Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
4700971000 | USD |
| CY2015Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
4906649000 | USD |
| CY2014Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
385269000 | USD |
| CY2015Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
474680000 | USD |
| CY2014Q2 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
|
265299000 | USD |
| CY2014Q2 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
223182000 | USD |
| CY2014Q4 | us-gaap |
Lines Of Credit Current
LinesOfCreditCurrent
|
105000000 | USD |
| CY2015Q4 | us-gaap |
Lines Of Credit Current
LinesOfCreditCurrent
|
105000000 | USD |
| CY2015 | us-gaap |
Litigation Settlement Amount
LitigationSettlementAmount
|
15000000 | USD |
| CY2015 | us-gaap |
Long Term Contract For Purchase Of Electric Power Amount Of Long Term Debt Or Lease Obligation Outstanding
LongTermContractForPurchaseOfElectricPowerAmountOfLongTermDebtOrLeaseObligationOutstanding
|
72000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
1480702000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
1480111000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
6424000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
93167000 | USD |
| CY2014Q4 | us-gaap |
Long Term Pollution Control Bond
LongTermPollutionControlBond
|
-83700000 | USD |
| CY2015Q4 | us-gaap |
Long Term Pollution Control Bond
LongTermPollutionControlBond
|
-83700000 | USD |
| CY2014Q4 | us-gaap |
Minority Interest
MinorityInterest
|
429000 | USD |
| CY2015Q4 | us-gaap |
Minority Interest
MinorityInterest
|
339000 | USD |
| CY2013 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
0 | USD |
| CY2014 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
23612000 | USD |
| CY2015 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
0 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
76770000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-223963000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
528000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-312217000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-103736000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-387827000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
242557000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
267268000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
375640000 | USD |
| CY2013 | us-gaap |
Net Income Loss
NetIncomeLoss
|
111077000 | USD |
| CY2014Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
48499000 | USD |
| CY2014Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
100871000 | USD |
| CY2014Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
10451000 | USD |
| CY2014Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
32220000 | USD |
| CY2014 | us-gaap |
Net Income Loss
NetIncomeLoss
|
192041000 | USD |
| CY2015Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46449000 | USD |
| CY2015Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
25246000 | USD |
| CY2015Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
13011000 | USD |
| CY2015Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
38521000 | USD |
| CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
123227000 | USD |
| CY2014Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
482000 | USD |
| CY2014Q2 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
-289000 | USD |
| CY2014Q3 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
20000 | USD |
| CY2014Q4 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
23000 | USD |
| CY2015Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
13000 | USD |
| CY2015Q2 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
28000 | USD |
| CY2015Q3 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
32000 | USD |
| CY2015Q4 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
17000 | USD |
| CY2013 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
6575000 | USD |
| CY2014 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
72229000 | USD |
| CY2015 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
5147000 | USD |
| CY2014Q4 | us-gaap |
Number Of Foreign Currency Derivatives Held
NumberOfForeignCurrencyDerivativesHeld
|
18 | |
| CY2015Q4 | us-gaap |
Number Of Foreign Currency Derivatives Held
NumberOfForeignCurrencyDerivativesHeld
|
24 | |
| us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
2 | Reportable_Segments | |
| CY2013 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
231089000 | USD |
| CY2014Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
90342000 | USD |
| CY2014Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
62731000 | USD |
| CY2014Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
32762000 | USD |
| CY2014Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
66753000 | USD |
| CY2014 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
252588000 | USD |
| CY2015Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
89575000 | USD |
| CY2015Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
57360000 | USD |
| CY2015Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
35912000 | USD |
| CY2015Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
70367000 | USD |
| CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
253214000 | USD |
| CY2013 | us-gaap |
Other Amortization Of Deferred Charges
OtherAmortizationOfDeferredCharges
|
-9408000 | USD |
| CY2014 | us-gaap |
Other Amortization Of Deferred Charges
OtherAmortizationOfDeferredCharges
|
-14821000 | USD |
| CY2015 | us-gaap |
Other Amortization Of Deferred Charges
OtherAmortizationOfDeferredCharges
|
21358000 | USD |
| CY2013 | us-gaap |
Other Asset Impairment Charges
OtherAssetImpairmentCharges
|
2534000 | USD |
| CY2014 | us-gaap |
Other Asset Impairment Charges
OtherAssetImpairmentCharges
|
0 | USD |
| CY2015 | us-gaap |
Other Asset Impairment Charges
OtherAssetImpairmentCharges
|
0 | USD |
| CY2014Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
45071000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
29937000 | USD |
| CY2014Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
4852000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
5928000 | USD |
| CY2014Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
151174000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
143646000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
881000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-2069000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
1238000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-2634000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
3655000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-1238000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
1418000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
-1967000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
667000 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
12000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
2000 | USD |
| CY2015 | 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 Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
-7000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
-1000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
0 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-1741000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
1126000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
0 | USD |
| CY2013 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-1026000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
664000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD |
| CY2013 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
38651000 | USD |
| CY2014 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
30418000 | USD |
| CY2015 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
29526000 | USD |
| CY2013 | us-gaap |
Other Income
OtherIncome
|
1599000 | USD |
| CY2014Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
11433000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
8983000 | USD |
| CY2014 | us-gaap |
Other Income
OtherIncome
|
1055000 | USD |
| CY2015 | us-gaap |
Other Income
OtherIncome
|
905000 | USD |
| CY2014Q4 | us-gaap |
Other Inventory
OtherInventory
|
5142000 | USD |
| CY2015Q4 | us-gaap |
Other Inventory
OtherInventory
|
4273000 | USD |
| CY2014Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
141395000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
147896000 | USD |
| CY2014Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
146240000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
161500000 | USD |
| CY2014Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
1431000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
0 | USD |
| CY2013 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
5167000 | USD |
| CY2014 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
11346000 | USD |
| CY2015 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
9300000 | USD |
| CY2013 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
12982000 | USD |
| CY2014 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
9009000 | USD |
| CY2015 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
-6881000 | USD |
| CY2013 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
39549000 | USD |
| CY2014 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
39219000 | USD |
| CY2015 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
28685000 | USD |
| CY2013 | us-gaap |
Payments For Proceeds From Derivative Instrument Financing Activities
PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
|
-2901000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Derivative Instrument Financing Activities
PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
|
-5429000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Derivative Instrument Financing Activities
PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
|
9326000 | USD |
| CY2013 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
1339000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
2647000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
10008000 | USD |
| CY2013 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
79856000 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
2920000 | USD |
| CY2013 | us-gaap |
Payments For Repurchase Of Redeemable Noncontrolling Interest
PaymentsForRepurchaseOfRedeemableNoncontrollingInterest
|
0 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Redeemable Noncontrolling Interest
PaymentsForRepurchaseOfRedeemableNoncontrollingInterest
|
20871000 | USD |
| CY2015 | 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 |
| CY2013 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
73276000 | USD |
| CY2014 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
78314000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
82397000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
35949000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
12267000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
0 | USD |
| us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
4792000 | USD | |
| CY2015 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
95000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Other Productive Assets
PaymentsToAcquireOtherProductiveAssets
|
8750000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Other Productive Assets
PaymentsToAcquireOtherProductiveAssets
|
6427000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Other Productive Assets
PaymentsToAcquireOtherProductiveAssets
|
885000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
294734000 | USD |
| CY2013 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
42067000 | USD |
| CY2014 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
22943000 | USD |
| CY2015 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
37050000 | USD |
| CY2014Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
189489000 | USD |
| CY2015Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
201453000 | USD |
| CY2013 | us-gaap |
Pension Contributions
PensionContributions
|
44263000 | USD |
| CY2014 | us-gaap |
Pension Contributions
PensionContributions
|
32000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
325922000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
|
394310000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
294363000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
325516000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
393425000 | USD |
| CY2013 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
0 | USD |
| CY2014 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
54179000 | USD |
| CY2015 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
0 | USD |
| CY2015 | us-gaap |
Pension Contributions
PensionContributions
|
12000000 | USD |
| CY2015Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | shares |
| CY2014Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2015Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| us-gaap |
Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
|
143748000 | USD | |
| us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
243759000 | USD | |
| CY2013 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
0 | USD |
| CY2014 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
35573000 | USD |
| CY2014 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
229903000 | USD |
| CY2015 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
13856000 | USD |
| CY2013 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
123000 | USD |
| CY2015 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
37200000 | USD |
| CY2013 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
4609000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
4060000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
1560000 | USD |
| CY2013 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
90000000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
150000000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
100000000 | USD |
| CY2013 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
3000000 | USD |
| CY2014 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
0 | USD |
| CY2015 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
0 | USD |
| CY2013 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-4315000 | USD |
| CY2014 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
1930000 | USD |
| CY2015 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-2053000 | USD |
| CY2013 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
119000000 | USD |
| CY2014 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-66000000 | USD |
| CY2015 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
0 | USD |
| CY2013 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
22960000 | USD |
| CY2014 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
14612000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
0 | USD |
| CY2013 | us-gaap |
Profit Loss
ProfitLoss
|
112294000 | USD |
| CY2014Q1 | us-gaap |
Profit Loss
ProfitLoss
|
48981000 | USD |
| CY2014Q2 | us-gaap |
Profit Loss
ProfitLoss
|
100582000 | USD |
| CY2014Q3 | us-gaap |
Profit Loss
ProfitLoss
|
10471000 | USD |
| CY2014Q4 | us-gaap |
Profit Loss
ProfitLoss
|
32243000 | USD |
| CY2014 | us-gaap |
Profit Loss
ProfitLoss
|
192277000 | USD |
| CY2015Q1 | us-gaap |
Profit Loss
ProfitLoss
|
46462000 | USD |
| CY2015Q2 | us-gaap |
Profit Loss
ProfitLoss
|
25274000 | USD |
| CY2015Q3 | us-gaap |
Profit Loss
ProfitLoss
|
13043000 | USD |
| CY2015Q4 | us-gaap |
Profit Loss
ProfitLoss
|
38538000 | USD |
| CY2015 | us-gaap |
Profit Loss
ProfitLoss
|
123317000 | USD |
| CY2014Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
4945820000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
5331875000 | USD |
| CY2013 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Additions
PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
|
3676000 | USD |
| CY2014 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Additions
PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
|
3924000 | USD |
| CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Additions
PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
|
3546000 | USD |
| CY2013 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
6066000 | USD |
| CY2014 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
8808000 | USD |
| CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
8331000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
1325858000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
1433286000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
227758000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
202683000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
3619962000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
3898589000 | USD |
| CY2014Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
4718062000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
5129192000 | USD |
| CY2014Q4 | us-gaap |
Refundable Gas Costs
RefundableGasCosts
|
3900000 | USD |
| CY2015Q4 | us-gaap |
Refundable Gas Costs
RefundableGasCosts
|
17900000 | USD |
| CY2014Q4 | us-gaap |
Regulated Entity Other Assets Noncurrent
RegulatedEntityOtherAssetsNoncurrent
|
534488000 | USD |
| CY2015Q4 | us-gaap |
Regulated Entity Other Assets Noncurrent
RegulatedEntityOtherAssetsNoncurrent
|
558368000 | USD |
| CY2014Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
579000000 | USD |
| CY2015Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
579632000 | USD |
| CY2014Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
91920000 | USD |
| CY2015Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
99798000 | USD |
| CY2014Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
333628000 | USD |
| CY2015Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
333883000 | USD |
| CY2015Q4 | us-gaap |
Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided
RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
|
384065000 | USD |
| CY2013 | us-gaap |
Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
|
11000000 | USD |
| CY2014 | us-gaap |
Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
|
46000000 | USD |
| CY2015 | us-gaap |
Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
|
0 | USD |
| CY2013 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
50462000 | USD |
| CY2014 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
39971000 | USD |
| CY2015 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2905000 | USD |
| CY2013 | us-gaap |
Repayments Of Other Debt
RepaymentsOfOtherDebt
|
14965000 | USD |
| CY2014 | us-gaap |
Repayments Of Other Debt
RepaymentsOfOtherDebt
|
16407000 | USD |
| CY2015 | us-gaap |
Repayments Of Other Debt
RepaymentsOfOtherDebt
|
1431000 | USD |
| CY2014Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
491599000 | USD |
| CY2015Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
530940000 | USD |
| CY2014Q4 | us-gaap |
Retained Earnings Appropriated
RetainedEarningsAppropriated
|
14270000 | USD |
| CY2015Q4 | us-gaap |
Retained Earnings Appropriated
RetainedEarningsAppropriated
|
21030000 | USD |
| CY2013 | us-gaap |
Revenues
Revenues
|
1441744000 | USD |
| CY2014Q1 | us-gaap |
Revenues
Revenues
|
446578000 | USD |
| CY2014Q2 | us-gaap |
Revenues
Revenues
|
312580000 | USD |
| CY2014Q3 | us-gaap |
Revenues
Revenues
|
301558000 | USD |
| CY2014Q4 | us-gaap |
Revenues
Revenues
|
411846000 | USD |
| CY2014 | us-gaap |
Revenues
Revenues
|
1472562000 | USD |
| CY2015Q1 | us-gaap |
Revenues
Revenues
|
446490000 | USD |
| CY2015Q2 | us-gaap |
Revenues
Revenues
|
337332000 | USD |
| CY2015Q3 | us-gaap |
Revenues
Revenues
|
313649000 | USD |
| CY2015Q4 | us-gaap |
Revenues
Revenues
|
387305000 | USD |
| CY2015 | us-gaap |
Revenues
Revenues
|
1484776000 | USD |
| CY2014Q4 | us-gaap |
Secured Debt
SecuredDebt
|
1511700000 | USD |
| CY2015Q4 | us-gaap |
Secured Debt
SecuredDebt
|
1611700000 | USD |
| CY2013 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
6218000 | USD |
| CY2014 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
8114000 | USD |
| CY2015 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
6914000 | USD |
| CY2015Q4 | us-gaap |
Statutory Accounting Practices Statutory Amount Available For Dividend Payments
StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments
|
231000000 | USD |
| CY2013 | us-gaap |
Stock Issued During Period Shares Acquisitions
StockIssuedDuringPeriodSharesAcquisitions
|
0 | shares |
| CY2014 | us-gaap |
Stock Issued During Period Shares Acquisitions
StockIssuedDuringPeriodSharesAcquisitions
|
4501441 | shares |
| CY2015 | us-gaap |
Stock Issued During Period Shares Acquisitions
StockIssuedDuringPeriodSharesAcquisitions
|
0 | shares |
| CY2013 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
0 | USD |
| CY2014Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
11360000 | USD |
| CY2015Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
10852000 | USD |
| CY2014Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
80718000 | USD |
| CY2015Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
62003000 | USD |
| CY2013 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | USD |
| CY2014 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
150119000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
0 | USD |
| CY2014Q2 | us-gaap |
Stock Repurchase Program Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
|
4000000 | shares |
| CY2014Q4 | us-gaap |
Stock Repurchase Program Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
|
800000 | shares |
| us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
2529615 | shares | |
| CY2015Q1 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
89400 | shares |
| CY2013Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1318267000 | USD |
| CY2014Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1483242000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1528287000 | USD |
| CY2013Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1298266000 | USD |
| CY2014Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1483671000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1528626000 | USD |
| CY2015Q4 | us-gaap |
Tax Credit Carryforward Amount
TaxCreditCarryforwardAmount
|
15300000 | USD |
| us-gaap |
Treasury Stock Acquired Average Cost Per Share
TreasuryStockAcquiredAverageCostPerShare
|
31.57 | ||
| CY2015Q1 | us-gaap |
Treasury Stock Acquired Average Cost Per Share
TreasuryStockAcquiredAverageCostPerShare
|
32.66 | |
| us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
79900000 | USD | |
| CY2015Q1 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
2900000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary
|
150134000 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On First Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
|
340895000 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary
|
202179000 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
|
233231000 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary
|
214519000 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance Sheet Amount
UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
|
2406929000 | USD |
| CY2015Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Due After Five Years
UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears
|
1265971000 | USD |
| CY2013 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
117174000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
129570000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
143499000 | USD |
| CY2013 | us-gaap |
Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
|
276228000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
|
286832000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
|
303221000 | USD |
| CY2013 | us-gaap |
Utilities Operating Expense Products And Services
UtilitiesOperatingExpenseProductsAndServices
|
689586000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Products And Services
UtilitiesOperatingExpenseProductsAndServices
|
678244000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Products And Services
UtilitiesOperatingExpenseProductsAndServices
|
656964000 | USD |
| CY2013 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
88435000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
94300000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
97657000 | USD |
| CY2013 | us-gaap |
Utility Revenue
UtilityRevenue
|
1402195000 | USD |
| CY2014 | us-gaap |
Utility Revenue
UtilityRevenue
|
1433343000 | USD |
| CY2015Q3 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
62688000 | shares |
| CY2015Q4 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
62758000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
62708000 | shares |
| CY2013 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
59997000 | shares |
| CY2014Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
60168000 | shares |
| CY2014Q2 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
60463000 | shares |
| CY2014Q3 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
64244000 | shares |
| CY2014Q4 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
62671000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
61887000 | shares |
| CY2015Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
62889000 | shares |
| CY2015Q2 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
62600000 | shares |
| CY2015 | us-gaap |
Utility Revenue
UtilityRevenue
|
1456091000 | USD |
| CY2013 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
5099000 | USD |
| CY2014 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
5296000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
5802000 | USD |
| CY2013 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
4945000 | USD |
| CY2014 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
44717000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
6160000 | USD |
| CY2013 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
59960000 | shares |
| CY2014Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
60122000 | shares |
| CY2014Q2 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
60184000 | shares |
| CY2014Q3 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
63934000 | shares |
| CY2014Q4 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
62290000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
61632000 | shares |
| CY2015Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
62318000 | shares |
| CY2015Q2 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
62281000 | shares |
| CY2015Q3 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
62299000 | shares |
| CY2015Q4 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
62308000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
62301000 | shares |
| CY2015 | 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 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 UTC and the 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 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 ERM in Washington, the 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. While the Company has not received any formal accounting orders from the various state commissions allowing for the offset of interest rate swap assets and liabilities with regulatory assets and liabilities, the Company has deemed this accounting treatment appropriate and future recovery probable due to the regulatory precedents set in prior general rate cases and the fact that the state commissions view interest rate swap derivatives as risk management tools similar to energy commodity derivatives.</font></div><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2015</font><font style="font-family:inherit;font-size:10pt;">, the Company has multiple master netting agreements with a variety of entities that allow for cross-commodity netting of derivative agreements with the same counterparty (i.e. power derivatives can be netted with natural gas derivatives) under ASC 815-10-45. The Company does not have any agreements which allow for cross-affiliate netting among multiple affiliated legal entities. The Company nets all derivative instruments when allowed by the agreement for presentation in the Consolidated Balance Sheets.</font></div></div> | |
| CY2015 | 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 AERC, and as of that date, AERC became a wholly-owned subsidiary of Avista Corp. The primary subsidiary of AERC is AEL&P, comprising regulated electric utility operations in Juneau, Alaska. There are no AERC earnings included in the overall results of Avista Corp. prior to July 1, 2014. See Note 4 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, a wholly owned subsidiary of Avista Corp., is the parent company of all of the subsidiary companies in the non-utility businesses. During the first half of 2014 and prior, Avista Capital’s subsidiaries included 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 5 for information regarding the disposition of Ecova and Note 21 for business segment information.</font></div><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;"></font></div></div> | |
| CY2015 | 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 Consolidated Balance Sheets were reclassified to conform to the current year presentation. The reclassifications related the presentation of debt issuance costs due to the retrospective adoption of FASB ASU No. 2015-03, "Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2015</font><font style="font-family:inherit;font-size:10pt;">. This resulted in a decrease to Other Deferred Charges and a decrease to Long-Term Debt and Capital Leases of </font><font style="font-family:inherit;font-size:10pt;">$11.4 million</font><font style="font-family:inherit;font-size:10pt;"> as of December 31, 2014. There was no other impact on the Company's financial statements or results of operations.</font></div><div style="line-height:120%;padding-top:6px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Also, the Company adopted FASB ASU 2015-17 “Income Taxes (Topic 740) - Balance Sheet Classification of Deferred Taxes,” as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2015</font><font style="font-family:inherit;font-size:10pt;"> on a prospective basis, which resulted in all 2015 deferred income taxes being classified as noncurrent liabilities on the Consolidated Balance Sheet, compared to 2014 under the previous guidance, which required entities to separately present Deferred Tax Assets (DTAs) and Deferred Tax Liabilities (DTLs) as current and noncurrent in a classified balance sheet. This makes the 2015 presentation of deferred income taxes incomparable to the 2014 presentation of deferred income taxes.</font></div><div style="line-height:120%;padding-top:6px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">See Note 2 of the Notes to Consolidated Financial Statements for further discussion of the adoption of both of these ASUs.</font></div></div> | |
| CY2015 | us-gaap |
Use Of Estimates
UseOfEstimates
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<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;">Use of Estimates</font></div><div style="line-height:120%;padding-top:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported for </font><font style="font-family:inherit;font-size:10pt;color:#040404;">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. </font><font style="font-family:inherit;font-size:10pt;">Significant estimates include:</font></div><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">determining the market value of energy commodity derivative assets and liabilities,</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">pension and other postretirement benefit plan obligations,</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">contingent liabilities,</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">goodwill impairment testing,</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">recoverability of regulatory assets, and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">unbilled revenues.</font></div></td></tr></table><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Changes in these estimates and assumptions are considered reasonably possible and may have a material effect on the consolidated financial statements and thus actual results could differ from the amounts reported and disclosed herein.</font></div></div> |
