$TXNM
TXNM ENERGY INC Stock $txnm

$txnm Overview Financials Valuation SEC Filings Company Website

2014 Q4 Form 10-K Financial Statement

#000110842616000165 Filed on February 29, 2016

Income Statement

Concept	2014 Q4	2014 Q3	2014 Q2
Revenue	$346.8M	$414.0M	$346.2M
YoY Change	7.41%	3.56%	-0.41%
Cost Of Revenue		$132.5M	$109.4M
YoY Change		15.54%	3.56%
Gross Profit		$281.5M	$236.7M
YoY Change		-1.26%	-2.15%
Gross Profit Margin		67.99%	68.39%
Selling, General & Admin	$39.80M	$42.20M	$45.20M
YoY Change	-10.56%	-10.02%	4.87%
% of Gross Profit		14.99%	19.09%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$52.20M	$54.30M	$51.50M
YoY Change	3.78%	0.56%	-1.15%
% of Gross Profit		19.29%	21.75%
Operating Expenses	$282.9M	$297.3M	$274.8M
YoY Change	3.78%	6.1%	1.78%
Operating Profit	$62.85M	$116.8M	$71.30M
YoY Change	55.06%	-0.8%	-8.44%
Interest Expense	-$25.50M	$30.12M	$29.97M
YoY Change	13.33%	-0.82%	-2.1%
% of Operating Profit	-40.57%	25.78%	42.04%
Other Income/Expense, Net	$1.100M	$2.084M	$2.169M
YoY Change	-122.0%	-65.09%	-48.28%
Pretax Income	$38.50M	$90.54M	$49.07M
YoY Change	213.01%	1.61%	-5.11%
Income Tax	$16.40M	$31.06M	$15.89M
% Of Pretax Income	42.6%	34.3%	32.39%
Net Earnings	$18.99M	$55.65M	$29.14M
YoY Change	148.33%	2.01%	5.29%
Net Earnings / Revenue	5.48%	13.44%	8.42%
Basic Earnings Per Share	$0.24	$0.70	$0.37
Diluted Earnings Per Share	$0.24	$0.69	$0.36
COMMON SHARES
Basic Shares Outstanding	79.65M shares	79.77M shares	79.76M shares
Diluted Shares Outstanding		80.22M shares	80.23M shares

Balance Sheet

Concept	2014 Q4	2014 Q3	2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$28.30M	$28.40M	$12.10M
YoY Change	1032.0%	-14.97%	-65.23%
Cash & Equivalents	$28.27M	$28.42M	$12.11M
Short-Term Investments
Other Short-Term Assets	$58.47M	$55.28M	$54.03M
YoY Change	69.04%	47.78%	27.96%
Inventory	$63.63M	$63.64M	$60.88M
Prepaid Expenses
Receivables	$87.04M	$105.5M	$92.23M
Other Receivables	$46.30M	$45.80M	$46.90M
Total Short-Term Assets	$406.4M	$466.3M	$446.8M
YoY Change	1.22%	16.43%	13.65%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.273B	$4.139B	$4.028B
YoY Change	8.51%	7.45%	5.66%
Goodwill	$278.3M	$278.3M	$278.3M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$261.4M	$247.3M	$255.7M
YoY Change	0.19%	0.2%	3.15%
Other Assets	$570.6M	$578.7M	$595.5M
YoY Change	-8.15%	-11.2%	-11.46%
Total Long-Term Assets	$5.384B	$5.243B	$5.157B
YoY Change	7.13%	4.27%	2.93%
TOTAL ASSETS
Total Short-Term Assets	$406.4M	$466.3M	$446.8M
Total Long-Term Assets	$5.384B	$5.243B	$5.157B
Total Assets	$5.790B	$5.709B	$5.604B
YoY Change	6.7%	5.16%	3.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$110.0M	$102.7M	$88.19M
YoY Change	0.33%	34.53%	-0.24%
Accrued Expenses	$53.90M	$82.10M	$46.60M
YoY Change	8.67%	-0.85%	-5.67%
Deferred Revenue
YoY Change
Short-Term Debt	$105.6M	$100.0M	$105.0M
YoY Change	-29.22%	-10.71%	-34.38%
Long-Term Debt Due	$332.9M	$333.1M	$158.1M
YoY Change	343.83%	534.05%	201.08%
Total Short-Term Liabilities	$704.1M	$700.3M	$486.9M
YoY Change	42.91%	68.5%	9.51%
LONG-TERM LIABILITIES
Long-Term Debt	$1.630B	$1.542B	$1.717B
YoY Change	-2.45%	-9.09%	0.35%
Other Long-Term Liabilities	$785.3M	$772.7M	$762.9M
YoY Change	1.51%	-5.55%	-6.71%
Total Long-Term Liabilities	$1.630B	$1.542B	$1.717B
YoY Change	-2.45%	-9.09%	-32.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$704.1M	$700.3M	$486.9M
Total Long-Term Liabilities	$1.630B	$1.542B	$1.717B
Total Liabilities	$3.984B	$3.900B	$3.820B
YoY Change	6.57%	6.14%	1.55%
SHAREHOLDERS EQUITY
Retained Earnings	$609.5M	$606.4M	$580.2M
YoY Change	10.14%	8.2%
Common Stock	$1.174B	$1.173B	$1.172B
YoY Change	-0.38%	-0.41%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.722B	$1.723B	$1.697B
YoY Change
Total Liabilities & Shareholders Equity	$5.790B	$5.709B	$5.604B
YoY Change	5.27%	5.16%	3.71%

Cashflow Statement

Concept	2014 Q4	2014 Q3	2014 Q2
OPERATING ACTIVITIES
Net Income	$18.99M	$55.65M	$29.14M
YoY Change	148.33%	2.01%	5.29%
Depreciation, Depletion And Amortization	$52.20M	$54.30M	$51.50M
YoY Change	3.78%	0.56%	-1.15%
Cash From Operating Activities	$88.70M	$202.4M	$47.40M
YoY Change	17.33%	33.95%	-70.61%
INVESTING ACTIVITIES
Capital Expenditures	-$167.3M	-$132.5M	-$77.10M
YoY Change	46.63%	64.8%	-3.5%
Acquisitions
YoY Change
Other Investing Activities	-$6.400M	-$28.10M	$400.0K
YoY Change	8.47%	-332.23%	-140.0%
Cash From Investing Activities	-$173.6M	-$160.6M	-$76.70M
YoY Change	44.67%	135.14%	-5.19%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	84.90M	-25.60M	14.30M
YoY Change	528.89%	-69.56%	-128.21%
NET CHANGE
Cash From Operating Activities	88.70M	202.4M	47.40M
Cash From Investing Activities	-173.6M	-160.6M	-76.70M
Cash From Financing Activities	84.90M	-25.60M	14.30M
Net Change In Cash	-0.00000001490	16.20M	-15.00M
YoY Change	-100.0%	-1346.15%	-150.51%
FREE CASH FLOW
Cash From Operating Activities	$88.70M	$202.4M	$47.40M
Capital Expenditures	-$167.3M	-$132.5M	-$77.10M
Free Cash Flow	$256.0M	$334.9M	$124.5M
YoY Change	34.95%	44.67%	-48.38%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	0001108426
CY2016Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	79653624	shares
CY2015	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2015	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2015Q2	dei	Entity Public Float EntityPublicFloat	1959479150	USD
CY2015	dei	Entity Registrant Name EntityRegistrantName	PNM RESOURCES INC
CY2015	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2015	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
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CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-71432000	USD
CY2013	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	-581000	USD
CY2014	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	-135000	USD
CY2015	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	-142000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5300000	USD
CY2014	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5900000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4900000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1466000	USD
CY2015Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1397000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2100	shares
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	85893000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	96135000	USD
CY2014Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	104170000	USD
CY2015Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	111895000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	7245000	USD
CY2014	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	7984000	USD
CY2015	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	8625000	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	0	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	79000	USD
CY2014	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	0	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	730000	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	3076000	USD
CY2014	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	51000	USD
CY2015	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-170000	USD
CY2014Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	104170000	USD
CY2015Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	111895000	USD
CY2013Q4	us-gaap	Assets Assets	5426858000	USD
CY2014Q4	us-gaap	Assets Assets	5790237000	USD
CY2015Q4	us-gaap	Assets Assets	6009328000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	406434000	USD
CY2015Q4	us-gaap	Assets Current AssetsCurrent	385570000	USD
CY2014Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	250145000	USD
CY2015Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	259042000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8985000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2533000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	28274000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	46051000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-6452000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	25741000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	17777000	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 Declared CommonStockDividendsPerShareDeclared	0.68
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.755
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.82
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	120000000	shares
CY2015Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	79653624	shares
CY2015Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	79653624	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	79653624	shares
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	79653624	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	1173845000	USD
CY2015Q4	us-gaap	Common Stock Value CommonStockValue	1166465000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	123997000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	112639000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5963000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	14521000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	14127000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	14910000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	139046000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	127294000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	21401000	USD
CY2014Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	190389000	USD
CY2015Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	204766000	USD
CY2013	us-gaap	Cost Of Goods Sold Electric CostOfGoodsSoldElectric	432316000	USD
CY2014	us-gaap	Cost Of Goods Sold Electric CostOfGoodsSoldElectric	471556000	USD
CY2015	us-gaap	Cost Of Goods Sold Electric CostOfGoodsSoldElectric	464649000	USD
CY2013	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	166881000	USD
CY2014	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	172634000	USD
CY2015	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	185919000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-2015000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-917000	USD
CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-728000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-1376000	USD
CY2014Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	12555000	USD
CY2015Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	12216000	USD
CY2014Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1955136000	USD
CY2015Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2086370000	USD
CY2013Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.069
CY2014Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.066
CY2015Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.066
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	50044000	USD
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	59814000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5488000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	60430000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	72481000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	16451000	USD
CY2014Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1220758000	USD
CY2015Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1321104000	USD
CY2015	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-555000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	12578000	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	14831000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	12305000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	356030000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	443711000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	153858000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	161691000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	68566000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	70749000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	78858000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	80031000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	54748000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	77417000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	864728000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	877393000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	864728000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	877393000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	115282000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	85037000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	914926000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1027047000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	67910000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	71054000	USD
CY2015	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.040
CY2015	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2015	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.75
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	208173000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	209867000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	222861000	USD
CY2014Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	11232000	USD
CY2015Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	3813000	USD
CY2014Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	0	USD
CY2015Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	2622000	USD
CY2015Q3	us-gaap	Derivative Fixed Interest Rate DerivativeFixedInterestRate	0.01927
CY2014Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1209000	USD
CY2015Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1859000	USD
CY2014Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	477000	USD
CY2015Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	0	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	54165000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	60138000	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	65316000	USD
CY2015Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	17656000	USD
CY2013	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	USD
CY2014Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	16063000	USD
CY2014	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	USD
CY2015	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.26
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.46
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.15
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.25
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.45
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.15
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.3399
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.3476
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.3266
CY2013	us-gaap	Electric Production Expense ElectricProductionExpense	175819000	USD
CY2014	us-gaap	Electric Production Expense ElectricProductionExpense	185638000	USD
CY2015	us-gaap	Electric Production Expense ElectricProductionExpense	176752000	USD
CY2013	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1387923000	USD
CY2014Q1	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	328897000	USD
CY2014Q2	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	346160000	USD
CY2014Q3	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	413951000	USD
CY2014Q4	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	346845000	USD
CY2014	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1435853000	USD
CY2015Q1	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	332868000	USD
CY2015Q2	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	352887000	USD
CY2015Q3	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	417433000	USD
CY2015Q4	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	335894000	USD
CY2015	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1439082000	USD
CY2013	us-gaap	Gain Loss On Investments GainLossOnInvestments	10612000	USD
CY2014	us-gaap	Gain Loss On Investments GainLossOnInvestments	10527000	USD
CY2015	us-gaap	Gain Loss On Investments GainLossOnInvestments	16060000	USD
CY2013	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	10612000	USD
CY2014	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	10527000	USD
CY2015	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	16060000	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3253000	USD
CY2014	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	179210000	USD
CY2014	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	171111000	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	179100000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	278297000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	278297000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	278297000	USD
CY2008	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	174400000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	175069000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	200647000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	46153000	USD
CY2014Q4	us-gaap	Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority	2000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59513000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	69738000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15075000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	61274000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	70226000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	16154000	USD
CY2013	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	5082000	USD
CY2014	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	4945000	USD
CY2015	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	5218000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	1132000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	1344000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	1485000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1783000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-2522000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-2811000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3818000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5723000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1781000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2192000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2164000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	1342000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-95327000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2597000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1890000	USD
CY2014Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	6360000	USD
CY2015Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	5845000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	4484000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2311000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-32269000	USD
CY2015	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-12665000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	7580000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5504000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	180000	USD
CY2013	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-8577000	USD
CY2014	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	30436000	USD
CY2015	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-29370000	USD
CY2013	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-19648000	USD
CY2014	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-2453000	USD
CY2015	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	2633000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12801000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-290000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2369000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-61262000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	45516000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-42064000	USD
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	586000	shares
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	491000	shares
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	380000	shares
CY2013	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	1500000	USD
CY2014	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	1600000	USD
CY2015	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	1500000	USD
CY2013	us-gaap	Interest Expense InterestExpense	121448000	USD
CY2014	us-gaap	Interest Expense InterestExpense	119627000	USD
CY2015	us-gaap	Interest Expense InterestExpense	114860000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	110768000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	108741000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	103382000	USD
CY2014Q4	us-gaap	Inventory Net InventoryNet	63628000	USD
CY2015Q4	us-gaap	Inventory Net InventoryNet	67386000	USD
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	10043000	USD
CY2014	us-gaap	Investment Income Interest InvestmentIncomeInterest	8483000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	6498000	USD
CY2015Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	6200000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	3983616000	USD
CY2015Q4	us-gaap	Liabilities Liabilities	4271579000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5790237000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6009328000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	704087000	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	641120000	USD
CY2014Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1650015000	USD
CY2015Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1663490000	USD
CY2014Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	332871000	USD
CY2015Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	124979000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1031698000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	125000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	100345000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	172302000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	600025000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	57000000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1629514000	USD
CY2015Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1966969000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	73546000	USD
CY2015Q4	us-gaap	Minority Interest MinorityInterest	71407000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-61593000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	96194000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	175431000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-331446000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-485329000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-544528000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	386587000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	414876000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	386874000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	100507000	USD
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	12468000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	29141000	USD
CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	55653000	USD
CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	18992000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	116254000	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	14340000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	31673000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	61045000	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	-91418000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	15640000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14521000	USD
CY2014	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14127000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14910000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	100507000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	116254000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15640000	USD
CY2013	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	6006000	USD
CY2014	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	3089000	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	19080000	USD
CY2014Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	77796000	USD
CY2015Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	82117000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	286842000	USD
CY2014Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	48753000	USD
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	71296000	USD
CY2014Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	116799000	USD
CY2014Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	62849000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	299697000	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	49569000	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	72414000	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	121505000	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-119138000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	124350000	USD
CY2014Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	3129000	USD
CY2015Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	361000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	58471000	USD
CY2015Q4	us-gaap	Other Assets Current OtherAssetsCurrent	82104000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	10355000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-9258000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-2679000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	6781000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-6024000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-1726000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	44276000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	2038000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	6665000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-181000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-100000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	44000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	23490000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3615000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-9677000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	7222000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	8401000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	17350000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	4734000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	5461000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	11181000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-134000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-363000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-73000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-195000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-3840000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-3120000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-3620000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-2524000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-2032000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-2332000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	17538000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	735000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2612000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-98000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-53000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	28000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	16564000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	10661000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	6688000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	10855000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	6812000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	4310000	USD
CY2014Q4	us-gaap	Other Deferred Costs Net OtherDeferredCostsNet	79642000	USD
CY2015Q4	us-gaap	Other Deferred Costs Net OtherDeferredCostsNet	73753000	USD
CY2014Q4	us-gaap	Other Deferred Credits Noncurrent OtherDeferredCreditsNoncurrent	103759000	USD
CY2015Q4	us-gaap	Other Deferred Credits Noncurrent OtherDeferredCreditsNoncurrent	133692000	USD
CY2013	us-gaap	Other Expenses OtherExpenses	21552000	USD
CY2014	us-gaap	Other Expenses OtherExpenses	10481000	USD
CY2015	us-gaap	Other Expenses OtherExpenses	12728000	USD
CY2013	us-gaap	Other Income OtherIncome	10572000	USD
CY2014	us-gaap	Other Income OtherIncome	12048000	USD
CY2015	us-gaap	Other Income OtherIncome	26833000	USD
CY2013	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	-2192000	USD
CY2014	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	-2164000	USD
CY2015	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	-1342000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	70194000	USD
CY2015Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	59494000	USD
CY2014Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	1762000	USD
CY2015Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	604000	USD
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2735000	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4045000	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3934000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	9675000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20577000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	36663000	USD
CY2014Q4	us-gaap	Other Receivables OtherReceivables	39857000	USD
CY2015Q4	us-gaap	Other Receivables OtherReceivables	28590000	USD
CY2013	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	36297000	USD
CY2014	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1		USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	600000	USD
CY2014	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	700000	USD
CY2015	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	4300000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4096000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	167000	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2741000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	13807000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17319000	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17720000	USD
CY2013	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	18335000	USD
CY2014	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	17610000	USD
CY2015	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	17049000	USD
CY2013	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	51508000	USD
CY2014	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	59468000	USD
CY2015	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	64251000	USD
CY2013	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2014	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	36235000	USD
CY2015	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2013	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	282000000	USD
CY2014	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	127016000	USD
CY2015	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	262548000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	348039000	USD
CY2014	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	460658000	USD
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	558589000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	110738000	USD
CY2015Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	73097000	USD
CY2013Q2	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	96200000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	75000000	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	355000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	463605000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5545000	USD
CY2014	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2808000	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6707000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-9500000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-43600000	USD
CY2015	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	95000000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	271140000	USD
CY2014	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	117989000	USD
CY2015	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	252174000	USD
CY2013	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2014	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2015	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	50000000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4618000	USD
CY2014	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6999000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5619000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	115556000	USD
CY2014Q1	us-gaap	Profit Loss ProfitLoss	16131000	USD
CY2014Q2	us-gaap	Profit Loss ProfitLoss	33181000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	59486000	USD
CY2014Q4	us-gaap	Profit Loss ProfitLoss	22111000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	130909000	USD
CY2015Q1	us-gaap	Profit Loss ProfitLoss	17852000	USD
CY2015Q2	us-gaap	Profit Loss ProfitLoss	35655000	USD
CY2015Q3	us-gaap	Profit Loss ProfitLoss	64855000	USD
CY2015Q4	us-gaap	Profit Loss ProfitLoss	-87284000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	31078000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	3406000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	5563000	USD
CY2015	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	10430000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	3404000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	4382000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1939760000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2058772000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4270006000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4535372000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	5941581000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6307261000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	5385000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	8152000	USD
CY2015	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	22579000	USD
CY2014Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	47855000	USD
CY2015Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1070000	USD
CY2014Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	491007000	USD
CY2015Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	470664000	USD
CY2014Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	1703000	USD
CY2015Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	15591000	USD
CY2014Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	466143000	USD
CY2015Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	467413000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	29468000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	125000000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	333066000	USD
CY2013	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	26900000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	609456000	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	559780000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	5320000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	5931000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	4863000	USD
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	105600000	USD
CY2015Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	250600000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1721546000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1654813000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1689030000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1750598000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1795092000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1726220000	USD
CY2014Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-7249000	USD
CY2015Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-5578000	USD
CY2014Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	63719000	USD
CY2015Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	52012000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1866000	USD
CY2014	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	6504000	USD
CY2015	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-5188000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19198000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19889000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15031000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6455000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	54000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5481000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	9790000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	623000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1214000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	-745000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	242000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	146000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	8576000	USD
CY2013	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1101081000	USD
CY2014	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1136156000	USD
CY2015	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1314732000	USD
CY2013	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	64496000	USD
CY2014	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	67584000	USD
CY2015	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	71684000	USD
CY2012Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1751000	USD
CY2013Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1423000	USD
CY2014Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1466000	USD
CY2015Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1397000	USD
CY2013	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	2849000	USD
CY2014	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	3267000	USD
CY2015	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	3358000	USD
CY2013	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	0	USD
CY2014	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	0	USD
CY2015	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	0	USD
CY2013	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	3177000	USD
CY2014	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	3224000	USD
CY2015	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	3427000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80431000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80279000	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80139000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	79654000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	79654000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	79654000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79845000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79788000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79759000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	191000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	134000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	105000	shares
CY2015	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">New Accounting Pronouncements</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Information concerning recently issued accounting pronouncements that have not been adopted by the Company is presented below.</font></div><div style="line-height:174%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Accounting Standards Update 2014-09 </font><font style="font-family:inherit;font-size:10pt;">–</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> Revenue from Contracts with Customers (Topic 606)</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:42px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On May 28, 2014, the FASB issued ASU No. 2014-09. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new standard will replace most existing revenue recognition guidance in GAAP when it becomes effective. On August 12, 2015, the FASB issued a one-year deferral in the effective date. The Company must now adopt the new standard beginning on January 1, 2018. Early adoption would be permitted beginning January 1, 2017. The standard permits the use of either the retrospective or cumulative effect transition method. The Company has not yet selected a transition method although it is unlikely the Company would elect to early adopt the new standard. The Company is analyzing the impacts this new standard will have on its consolidated financial statements and related disclosures, but has not determined the effect of the standard on its ongoing financial reporting.</font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Accounting Standards Update 2014-15 </font><font style="font-family:inherit;font-size:10pt;">–</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> Presentation of Financial Statements </font><font style="font-family:inherit;font-size:10pt;">–</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern</font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On August 27, 2014, the FASB issued ASU No. 2014-15, which requires management to evaluate whether there is substantial doubt about a company’s ability to continue as a going concern in connection with the preparation of financial statements for each annual and interim reporting period. Disclosure requirements associated with management’s evaluation are also outlined in the new guidance. The new standard is effective for the Company for reporting periods ending after December 15, 2016, with early adoption permitted. The Company is in the process of analyzing the impacts of this new standard. </font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Accounting Standards Update 2016-01 </font><font style="font-family:inherit;font-size:10pt;">–</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> Financial Instruments (Subtopic 825-10) </font><font style="font-family:inherit;font-size:10pt;">– </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Recognition and Measurement of Financial Assets and Financial Liabilities</font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On January 5, 2016, the FASB issued ASU No. 2016-01, which makes targeted improvements to GAAP regarding financial instruments. The new standard eliminates the requirement to classify investments in equity securities with readily determinable fair values into trading or available-for-sale categories and now requires those equity securities to be measured at fair value with changes in fair value recognized in net income rather than in OCI. The new standard also revises certain presentation and disclosure requirements. Under the new standard, accounting for investments in debt securities remains essentially unchanged. The new standard will be effective for the Company beginning on January 1, 2018. Early adoption of the standard is permitted. The Company is in the process of analyzing the impacts of this new standard.</font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Accounting Standards Update 2016-02 </font><font style="font-family:inherit;font-size:10pt;">–</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> Leases (Topic 842)</font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:41px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On February 25, 2016, the FASB issued ASU No. 2016-02, which will change how lessees account for leases. The ASU will require that a liability be recorded on the balance sheet for all leases based on the present value of future lease obligations. A corresponding right-of-use asset will also be recorded. Amortization of the lease obligation and the right-of-use asset for certain leases, primarily those currently classified as operating leases, will be on a straight-line basis, which is not expected to have a significant impact on the statements of earnings or cash flows, whereas other leases will be required to be accounted for as financing arrangements similar to the accounting treatment for capital leases under current GAAP. The new standard also revises certain disclosure requirements. The new standard will be effective for the Company beginning on January 1, 2019. Early adoption of the standard is permitted. At adoption of the ASU, leases will be recognized and measured as of the earliest period presented using a modified retrospective approach. Since this ASU was only recently issued, the Company has not yet begun the process of analyzing the impacts of this new standard.</font></div></div>

Files In Submission

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$TXNM
TXNM ENERGY INC Stock $txnm

2014 Q4 Form 10-K Financial Statement

#000110842616000165 Filed on February 29, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TXNM TXNM ENERGY INC Stock $txnm

2014 Q4 Form 10-K Financial Statement

#000110842616000165 Filed on February 29, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TXNM
TXNM ENERGY INC Stock $txnm