$TXNM
TXNM ENERGY INC Stock $txnm

$txnm Overview Financials Valuation SEC Filings Company Website

2011 Q4 Form 10-Q Financial Statement

#000110842611000079 Filed on November 04, 2011

Income Statement

Concept	2011 Q4	2011 Q3	2010 Q3
Revenue	$347.9M	$549.5M	$503.7M
YoY Change	-8.61%	9.1%	5.43%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$60.80M	$69.80M	$71.20M
YoY Change	-10.85%	-1.97%	5.01%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$43.40M	$54.60M	$48.40M
YoY Change	-9.77%	12.81%	4.31%
% of Gross Profit
Operating Expenses	$283.9M	$441.2M	$398.2M
YoY Change	-14.18%	10.8%	5.85%
Operating Profit	$63.94M	$108.3M	$105.4M
YoY Change	28.16%	2.73%
Interest Expense	-$27.80M	$31.12M	$31.32M
YoY Change	-87.48%	-0.62%	-344.66%
% of Operating Profit	-43.48%	28.74%	29.71%
Other Income/Expense, Net	-$11.30M	$4.685M	$3.848M
YoY Change	391.3%	21.75%	381.0%
Pretax Income	$199.7M	$73.87M	$81.41M
YoY Change	-214.51%	-9.26%	-9.15%
Income Tax	$84.30M	$25.96M	$28.81M
% Of Pretax Income	42.21%	35.15%	35.39%
Net Earnings	$112.0M	$43.66M	$48.55M
YoY Change	-203.51%	-10.07%	-10.59%
Net Earnings / Revenue	32.19%	7.95%	9.64%
Basic Earnings Per Share	$1.36	$0.48	$0.53
Diluted Earnings Per Share	$1.35	$0.48	$0.53
COMMON SHARES
Basic Shares Outstanding	86.67M shares	91.20M shares	91.56M shares
Diluted Shares Outstanding		91.74M shares	91.78M shares

Balance Sheet

Concept	2011 Q4	2011 Q3	2010 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$15.10M	$22.30M	$25.10M
YoY Change	-1.95%	-11.16%	-64.3%
Cash & Equivalents	$15.09M	$25.76M	$25.10M
Short-Term Investments
Other Short-Term Assets	$33.40M	$49.04M	$251.2M
YoY Change	-65.25%	-80.48%	41.2%
Inventory	$54.23M	$53.09M	$53.20M
Prepaid Expenses
Receivables	$87.79M	$107.6M	$134.8M
Other Receivables	$166.2M	$146.5M	$81.30M
Total Short-Term Assets	$462.8M	$625.7M	$545.6M
YoY Change	-14.9%	14.69%	7.13%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.632B	$3.555B	$3.399B
YoY Change	5.21%	4.6%	3.36%
Goodwill	$278.3M	$321.3M	$321.3M
YoY Change	-13.39%	0.0%
Intangibles	$0.00	$0.00
YoY Change	-100.0%
Long-Term Investments	$260.1M	$251.0M	$471.4M
YoY Change	-6.97%	-46.75%	-11.07%
Other Assets	$571.6M	$662.6M	$617.3M
YoY Change	-5.07%	7.34%	5.29%
Total Long-Term Assets	$4.742B	$4.747B	$4.835B
YoY Change	1.29%	-1.83%	1.73%
TOTAL ASSETS
Total Short-Term Assets	$462.8M	$625.7M	$545.6M
Total Long-Term Assets	$4.742B	$4.747B	$4.835B
Total Assets	$5.205B	$5.373B	$5.381B
YoY Change	-0.39%	-0.15%	2.25%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$103.1M	$71.95M	$102.1M
YoY Change	7.47%	-29.53%	16.15%
Accrued Expenses	$53.10M	$82.60M	$73.50M
YoY Change	11.09%	12.38%	-18.24%
Deferred Revenue
YoY Change
Short-Term Debt	$82.70M	$289.0M	$192.0M
YoY Change	-62.75%	50.52%	-0.52%
Long-Term Debt Due	$2.387M	$2.252M	$2.100M
YoY Change	5.99%	7.24%	5.0%
Total Short-Term Liabilities	$373.3M	$712.6M	$537.7M
YoY Change	-28.23%	32.54%	1.86%
LONG-TERM LIABILITIES
Long-Term Debt	$1.672B	$1.564B	$1.566B
YoY Change	6.91%	-0.1%	2.25%
Other Long-Term Liabilities	$846.7M	$826.7M	$859.0M
YoY Change	-2.43%	-3.76%	2.71%
Total Long-Term Liabilities	$1.672B	$1.564B	$2.425B
YoY Change	6.91%	-35.49%	2.42%
TOTAL LIABILITIES
Total Short-Term Liabilities	$373.3M	$712.6M	$537.7M
Total Long-Term Liabilities	$1.672B	$1.564B	$2.425B
Total Liabilities	$3.537B	$3.686B	$3.601B
YoY Change	1.29%	2.35%	4.16%
SHAREHOLDERS EQUITY
Retained Earnings	$447.7M	$345.6M
YoY Change	42.14%
Common Stock	$1.193B	$1.319B
YoY Change	-7.54%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.574B	$1.591B	$1.779B
YoY Change
Total Liabilities & Shareholders Equity	$5.205B	$5.373B	$5.381B
YoY Change	-0.39%	-0.15%	2.25%

Cashflow Statement

Concept	2011 Q4	2011 Q3	2010 Q3
OPERATING ACTIVITIES
Net Income	$112.0M	$43.66M	$48.55M
YoY Change	-203.51%	-10.07%	-10.59%
Depreciation, Depletion And Amortization	$43.40M	$54.60M	$48.40M
YoY Change	-9.77%	12.81%	4.31%
Cash From Operating Activities	$93.70M	$113.8M	$140.4M
YoY Change	32.34%	-18.95%	17.69%
INVESTING ACTIVITIES
Capital Expenditures	-$90.60M	-$83.10M	-$45.00M
YoY Change	-9.58%	84.67%	-28.12%
Acquisitions
YoY Change
Other Investing Activities	$315.3M	$16.80M	$12.90M
YoY Change	-6406.0%	30.23%	-38.57%
Cash From Investing Activities	$224.6M	-$66.20M	-$32.20M
YoY Change	-313.7%	105.59%	-22.6%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$125.7M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-329.0M	-35.70M	-102.2M
YoY Change	-1437.4%	-65.07%	205.07%
NET CHANGE
Cash From Operating Activities	93.70M	113.8M	140.4M
Cash From Investing Activities	224.6M	-66.20M	-32.20M
Cash From Financing Activities	-329.0M	-35.70M	-102.2M
Net Change In Cash	-10.70M	11.90M	6.000M
YoY Change	10.31%	98.33%	-86.43%
FREE CASH FLOW
Cash From Operating Activities	$93.70M	$113.8M	$140.4M
Capital Expenditures	-$90.60M	-$83.10M	-$45.00M
Free Cash Flow	$184.3M	$196.9M	$185.4M
YoY Change	7.78%	6.2%	1.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	474000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1077000	USD
CY2011Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	71949000	USD
CY2010Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	95969000	USD
CY2011Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	107637000	USD
CY2010Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	97245000	USD
CY2010Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	18089000	USD
CY2011Q3	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	16350000	USD
CY2011Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-72913000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-68666000	USD
CY2011Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1645000	USD
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	11178000	USD
	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	-20120000	USD
	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	-21023000	USD
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1923608	shares
CY2010Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	76637000	USD
CY2011Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	77290000	USD
CY2010Q4	us-gaap	Assets Assets	5225083000	USD
CY2011Q3	us-gaap	Assets Assets	5372640000	USD
CY2010Q3	us-gaap	Assets Assets	5380809000	USD
CY2010Q4	us-gaap	Assets Current AssetsCurrent	543880000	USD
CY2011Q3	us-gaap	Assets Current AssetsCurrent	625738000	USD
CY2011Q3	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	166119000	USD
CY2010Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2010Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Noncurrent AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	0	USD
CY2011Q3	us-gaap	Assets Of Disposal Group Including Discontinued Operation Noncurrent AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	101059000	USD
CY2011Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	157001000	USD
CY2010Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	156922000	USD
CY2011Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	10740000	USD
CY2011Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	20259000	USD
CY2011Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	39705000	USD
CY2011Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	683000	USD
CY2011Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	71387000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	16290000	USD
CY2011Q3	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	2800000	USD
CY2010Q3	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1568000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	4999000	USD
CY2010Q3	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1227000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	3099000	USD
CY2011Q3	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1847000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	4129000	USD
CY2011Q3	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	0	USD
CY2010Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	156922000	USD
CY2011Q3	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	157001000	USD
CY2011Q3	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	18255000	USD
CY2010Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	26835000	USD
CY2011Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25760000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14641000	USD
CY2010Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25097000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	10356000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	10456000	USD
CY2011Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2010Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2011Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2010Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2010Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.375
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.375
CY2011Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
CY2010Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0.00
CY2011Q3	us-gaap	Common Stock No Par Value CommonStockNoParValue	0.00
CY2011Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2011Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	86673174	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	86673174	shares
CY2011Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	86673174	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	86673174	shares
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	1290465000	USD
CY2011Q3	us-gaap	Common Stock Value CommonStockValue	1318539000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	60119000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41440000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	51920000	USD
CY2010Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	46562000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10764000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10305000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4111000	USD
CY2010Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3909000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	45683000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	62621000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	71279000	USD
CY2010Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	50603000	USD
CY2010Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	137622000	USD
CY2011Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	159918000	USD
CY2010Q4	us-gaap	Convertible Preferred Stock Nonredeemable Or Redeemable Issuer Option Value ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue	100000000	USD
CY2011Q3	us-gaap	Convertible Preferred Stock Nonredeemable Or Redeemable Issuer Option Value ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue	0	USD
CY2011Q3	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	250854000	USD
	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	557238000	USD
	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	582814000	USD
CY2010Q3	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	215169000	USD
CY2011Q3	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	42370000	USD
CY2010Q3	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	38980000	USD
	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	119115000	USD
	us-gaap	Cost Of Services Depreciation And Amortization CostOfServicesDepreciationAndAmortization	113634000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	23276000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	43167000	USD
CY2011Q3	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	886000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	886000	USD
CY2011Q3	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	582485000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	540106000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	151984000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	138013000	USD
CY2011Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	3716000	USD
CY2010Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	15999000	USD
CY2011Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	247000	USD
CY2010Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	5264000	USD
CY2010Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2011Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2011Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	300000	USD
CY2010Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	3400000	USD
CY2011Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	12787000	USD
CY2010Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	8113000	USD
CY2011Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1746000	USD
CY2010Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	31407000	USD
CY2010Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	12831000	USD
CY2011Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	1913000	USD
CY2010Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	2642000	USD
CY2011Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	4026000	USD
	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;padding-left:36px;text-indent:-36px;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:48px;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: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;font-weight:bold;">Accounting Standards Update 2011-04 - Fair Value Measurement: Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs</font></div><div style="line-height:120%;text-align:left;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:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Financial Accounting Standards Board ("FASB") released amended guidance to provide a consistent definition of fair value and to ensure fair value measurement and disclosure requirements are similar between U.S. GAAP and International Financial Reporting Standards.  The update changes certain fair value measurement principles, further enhances disclosure requirements related to transfers between hierarchy levels, and increases qualitative disclosures regarding unobservable inputs used in Level 3 measurements, including the sensitivity of recurring Level 3 measurements to changes in significant unobservable inputs. In addition, the update requires disclosure of the level within the fair value hierarchy for fair value disclosures of instruments recorded on an amortized cost basis. The update is required to be applied prospectively and is effective for interim and annual reporting periods beginning on or after December 15, 2011, with early adoption prohibited. The Company does not believe this guidance will have a material impact on the Company's financial statements and will comply with this requirement upon its effective date. </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;font-weight:bold;">Accounting Standards Update 2011-05 - Comprehensive Income: Presentation of Comprehensive Income</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;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The FASB released amended guidance regarding presentation of comprehensive income in financial statements. The update requires entities to report comprehensive income in either one continuous statement of comprehensive income or in two separate but consecutive statements. Under the two-statement approach, the first statement would include components of net income consistent with current guidance, and the second statement would include components of other comprehensive income. The update is effective for interim and annual reporting periods beginning after December 15, 2011, with early adoption permitted. The Company does not believe this guidance will have a material impact on the Company's financial statements and will comply with this requirement no later than its effective date. </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;font-weight:bold;">Accounting Standards Update 2011-08 - Intangibles-Goodwill and Other: Testing Goodwill for Impairment</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;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The FASB released amended guidance that is intended to simplify requirements to test goodwill for impairment. Under the amended guidance, an entity will have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less that its carrying amount. If an entity determines it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then performing the two-step impairment test will not be necessary. However, if an entity is unable to make this conclusion, then it will be required to perform the first step of the two-step impairment test by calculating the fair value of the reporting unit and comparing the fair value with the carrying amount of the reporting unit, as required by current guidance. The update is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. The Company is currently evaluating the impacts of this new standard.</font></div></div>
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	-33695000	USD
CY2010Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	11565000	USD
CY2011Q3	us-gaap	Dividends Payable Current DividendsPayableCurrent	10966000	USD
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.53
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2010Q3	us-gaap	Electric Production Expense ElectricProductionExpense	42306000	USD
	us-gaap	Electric Production Expense ElectricProductionExpense	148002000	USD
CY2011Q3	us-gaap	Electric Production Expense ElectricProductionExpense	39730000	USD
	us-gaap	Electric Production Expense ElectricProductionExpense	135510000	USD
	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1352747000	USD
CY2010Q3	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	503653000	USD
CY2011Q3	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	549498000	USD
	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	1292865000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	264000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
	us-gaap	Fair Value Level1 To Level2 Transfers Amount FairValueLevel1ToLevel2TransfersAmount	0	USD
CY2010Q3	us-gaap	Fair Value Level1 To Level2 Transfers Amount FairValueLevel1ToLevel2TransfersAmount	0	USD
CY2011Q3	us-gaap	Fair Value Level1 To Level2 Transfers Amount FairValueLevel1ToLevel2TransfersAmount	0	USD
	us-gaap	Fair Value Level1 To Level2 Transfers Amount FairValueLevel1ToLevel2TransfersAmount	0	USD
	us-gaap	Fair Value Level2 To Level1 Transfers Amount FairValueLevel2ToLevel1TransfersAmount	0	USD
CY2011Q3	us-gaap	Fair Value Level2 To Level1 Transfers Amount FairValueLevel2ToLevel1TransfersAmount	0	USD
CY2010Q3	us-gaap	Fair Value Level2 To Level1 Transfers Amount FairValueLevel2ToLevel1TransfersAmount	0	USD
	us-gaap	Fair Value Level2 To Level1 Transfers Amount FairValueLevel2ToLevel1TransfersAmount	0	USD
CY2011Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	0	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	5414000	USD
CY2010Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	2206000	USD
CY2011Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	-4109000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	7688000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	2606000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	2606000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	7688000	USD
CY2011Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	69755000	USD
CY2010Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	71193000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	197016000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	196398000	USD
CY2010Q3	us-gaap	Goodwill Goodwill	321310000	USD
CY2011Q3	us-gaap	Goodwill Goodwill	321310000	USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2010	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2011Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	3370000	USD
CY2011Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	123206000	USD
CY2011Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	0	USD
CY2011Q3	us-gaap	Held To Maturity Securities Debt Maturities Fair Value HeldToMaturitySecuritiesDebtMaturitiesFairValue	126576000	USD
CY2011Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	USD
CY2010	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2011	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	112732000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	73869000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	111047000	USD
CY2010Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	81406000	USD
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.70
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.69
CY2010Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.53
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.48
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.70
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.69
CY2010Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.53
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.48
CY2010Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2495000	USD
CY2011Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5714000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37365000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37206000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25964000	USD
CY2010Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28813000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-98792000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-3744000	USD
CY2011Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	99506000	USD
CY2010Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	97450000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	13781000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-9380000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2557000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	985000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	2901000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	54654000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-47201000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-12919000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4781000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3310000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-43691000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-25198000	USD
CY2011Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	542000	shares
CY2010Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	219000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	258000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	516000	shares
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	26425000	USD
CY2011Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	0	USD
	us-gaap	Interest Expense InterestExpense	94488000	USD
	us-gaap	Interest Expense InterestExpense	92251000	USD
CY2010Q3	us-gaap	Interest Expense InterestExpense	31317000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	31124000	USD
	us-gaap	Interest Paid Net InterestPaidNet	67824000	USD
	us-gaap	Interest Paid Net InterestPaidNet	64130000	USD
CY2011Q3	us-gaap	Inventory Net InventoryNet	53092000	USD
CY2010Q4	us-gaap	Inventory Net InventoryNet	52479000	USD
CY2011Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	3748000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	12010000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	14608000	USD
CY2010Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	4499000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	3491635000	USD
CY2011Q3	us-gaap	Liabilities Liabilities	3685902000	USD
CY2011Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5372640000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5225083000	USD
CY2010Q4	us-gaap	Liabilities Current LiabilitiesCurrent	520124000	USD
CY2011Q3	us-gaap	Liabilities Current LiabilitiesCurrent	712649000	USD
CY2010Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2011Q3	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	103915000	USD
CY2010Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	0	USD
CY2011Q3	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	17596000	USD
CY2011Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1409176000	USD
CY2010Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1407916000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	704900000	USD
CY2010Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2252000	USD
CY2011Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	2252000	USD
CY2011Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1564077000	USD
CY2010Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1563595000	USD
CY2011Q3	us-gaap	Margin Deposit Assets MarginDepositAssets	28900000	USD
CY2010Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	32000000	USD
CY2011Q3	us-gaap	Minority Interest MinorityInterest	83969000	USD
CY2010Q4	us-gaap	Minority Interest MinorityInterest	85177000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-35342000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	16687000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-170760000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-204828000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	216558000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	198497000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	48552000	USD
	us-gaap	Net Income Loss NetIncomeLoss	64366000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	43662000	USD
	us-gaap	Net Income Loss NetIncomeLoss	62981000	USD
CY2011Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4111000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10305000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10764000	USD
CY2010Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3909000	USD
CY2010Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	72901000	USD
CY2011Q3	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	78218000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	108284000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	189563000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	193364000	USD
CY2010Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	105408000	USD
CY2011Q3	us-gaap	Other Assets Current OtherAssetsCurrent	49043000	USD
CY2010Q4	us-gaap	Other Assets Current OtherAssetsCurrent	96110000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	1267000	USD
	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	6906000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-219000	USD
	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-781000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-4247000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-1990000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-11061000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-2222000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Net Of Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax	648000	USD
	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Net Of Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax	-223000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Net Of Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Net Of Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax	-318000	USD
	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax	147000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax	0	USD
	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax	176000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax	-425000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-17632000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-2431000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-1747000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-3776000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	1593000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	2475000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	11555000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	1145000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	-20396000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	1493000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	-8026000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	2036000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	5319000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	-827000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	13546000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	-1129000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-906000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-4765000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	123000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	441000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	12448000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	6428000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1713000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	6516000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1123000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-8157000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-4212000	USD
CY2010Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-4270000	USD
CY2010Q4	us-gaap	Other Deferred Credits Noncurrent OtherDeferredCreditsNoncurrent	147616000	USD
CY2011Q3	us-gaap	Other Deferred Credits Noncurrent OtherDeferredCreditsNoncurrent	123054000	USD
CY2011Q3	us-gaap	Other Expenses OtherExpenses	4685000	USD
CY2010Q3	us-gaap	Other Expenses OtherExpenses	3848000	USD
	us-gaap	Other Expenses OtherExpenses	8861000	USD
	us-gaap	Other Expenses OtherExpenses	11638000	USD
CY2011Q3	us-gaap	Other Income OtherIncome	1755000	USD
	us-gaap	Other Income OtherIncome	13333000	USD
CY2010Q3	us-gaap	Other Income OtherIncome	1963000	USD
	us-gaap	Other Income OtherIncome	3559000	USD
CY2010Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	108424000	USD
CY2011Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	76281000	USD
CY2011Q3	us-gaap	Other Long Term Investments OtherLongTermInvestments	14639000	USD
CY2010Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	18791000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3549000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3820000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11619000	USD
CY2011Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3291000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	15972000	USD
CY2010Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	7315000	USD
CY2010Q4	us-gaap	Other Receivables OtherReceivables	60562000	USD
CY2011Q3	us-gaap	Other Receivables OtherReceivables	46955000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-145000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-636000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5288000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2804000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	11972000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	11149000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	34691000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	34690000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	17610000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	59395000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	122174000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	236275000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	181340000	USD
CY2011Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	227401000	USD
CY2010Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	270172000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	50000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	403845000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	67000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-6000000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	57098000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	121202000	USD
CY2011Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	26312000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	57098000	USD
CY2010Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	20813000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	121202000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1117000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2570000	USD
	us-gaap	Profit Loss ProfitLoss	73682000	USD
	us-gaap	Profit Loss ProfitLoss	75526000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	47905000	USD
CY2010Q3	us-gaap	Profit Loss ProfitLoss	52593000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	2307000	USD
CY2011Q3	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	125000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	7333000	USD
CY2011Q3	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	5139000	USD
CY2011Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1686971000	USD
CY2010Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1626693000	USD
CY2011Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	3549850000	USD
CY2010Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	3444444000	USD
CY2010Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	4860614000	USD
CY2011Q3	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	4998685000	USD
CY2011Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	28693000	USD
CY2010Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	36292000	USD
CY2011Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	475937000	USD
CY2010Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	502467000	USD
CY2010Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	724000	USD
CY2011Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	429000	USD
CY2011Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	363087000	USD
CY2010Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	342465000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	50000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	403845000	USD
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	314943000	USD
CY2011Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	345614000	USD
CY2010Q3	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2011Q3	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	21.97
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm	4.60	years
CY2010Q3	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	503653000	USD
	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	1292865000	USD
	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	1352747000	USD
CY2011Q3	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	549498000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2525000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4302000	USD
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3045556	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.99
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	102338	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	24.96
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10333	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.26
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.05
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.00
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	8950188	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3948262	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3581197	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.68
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.33
CY2011Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	6011541	USD
CY2011Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	5.12	years
CY2010Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	222000000	USD
CY2011Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	289000000	USD
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	254394	shares
CY2011Q3	us-gaap	Stockholders Equity StockholdersEquity	1591240000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	1536742000	USD
CY2011Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1675209000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1721919000	USD
CY2011Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	47793000	USD
CY2010Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	71453000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	5869000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-41649000	USD
CY2011Q3	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	441214000	USD
CY2010Q3	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	398245000	USD
	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1103302000	USD
	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1159383000	USD
CY2010Q3	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	15585000	USD
CY2011Q3	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	20580000	USD
	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	43456000	USD
	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	50564000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	91981000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	91814000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	91742000	shares
CY2010Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	91781000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	86673000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	86673000	shares
CY2010Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	86673000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	86673000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	91465000	shares
CY2010Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	91562000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	91200000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	91556000	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	154000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	164000	shares
CY2010Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	111000	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	105000	shares
CY2011Q3	pnm	Accounts Payable Payments For Utility And Non Utility Plant Additions AccountsPayablePaymentsForUtilityAndNonUtilityPlantAdditions	11842000	USD
CY2011Q3	pnm	Accrual For Repurchase Of Stock AccrualForRepurchaseOfStock	73475000	USD
CY2010Q4	pnm	Accrual For Repurchase Of Stock AccrualForRepurchaseOfStock	0	USD
CY2010Q4	pnm	Accrued Interest And Taxes Payable AccruedInterestAndTaxesPayable	47783000	USD
CY2011Q3	pnm	Accrued Interest And Taxes Payable AccruedInterestAndTaxesPayable	82636000	USD
CY2010Q4	pnm	Accumulated Amortization Nuclear Fuel AccumulatedAmortizationNuclearFuel	26247000	USD
CY2011Q3	pnm	Accumulated Amortization Nuclear Fuel AccumulatedAmortizationNuclearFuel	36722000	USD
CY2010Q4	pnm	Cash And Cash Equivalents At Carrying Value Excluding Amount In Assets Held For Sale CashAndCashEquivalentsAtCarryingValueExcludingAmountInAssetsHeldForSale	15404000	USD
CY2011Q3	pnm	Cash And Cash Equivalents At Carrying Value Excluding Amount In Assets Held For Sale CashAndCashEquivalentsAtCarryingValueExcludingAmountInAssetsHeldForSale	22298000	USD
CY2011Q3	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Par Value ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsParValue	0.00
CY2010Q4	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Par Value ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsParValue	0.00
CY2010Q4	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Shares Authorized ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsSharesAuthorized	10000000	shares
CY2011Q3	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Shares Authorized ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsSharesAuthorized	10000000	shares
CY2011Q3	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Shares Issued ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsSharesIssued	0	shares
CY2010Q4	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Shares Issued ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsSharesIssued	477800	shares
CY2010Q4	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Shares Outstanding ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsSharesOutstanding	477800	shares
CY2011Q3	pnm	Convertible Preferred Stock Without Mandatory Redemption Requirements Shares Outstanding ConvertiblePreferredStockWithoutMandatoryRedemptionRequirementsSharesOutstanding	0	shares
CY2010Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements	11529000	USD
CY2011Q3	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements	11529000	USD
CY2011Q3	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Par Or Stated Value Per Share CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare	100.00
CY2010Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Par Or Stated Value Per Share CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare	100.00
CY2010Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Authorized CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized	10000000	shares
CY2011Q3	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Authorized CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized	10000000	shares
CY2010Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Issued CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued	115293	shares
CY2011Q3	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Issued CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued	115293	shares
CY2010Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Outstanding CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding	115293	shares
CY2011Q3	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Outstanding CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding	115293	shares
CY2011Q3	pnm	Fair Value Assets And Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings	589000	USD
	pnm	Fair Value Assets And Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings	-1537000	USD
CY2010Q3	pnm	Fair Value Assets And Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings	-994000	USD
	pnm	Fair Value Assets And Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings	1455000	USD
CY2010Q4	pnm	Fair Value Disclosure Derivative Reconciling Amount From Contract Value To Fair Value FairValueDisclosureDerivativeReconcilingAmountFromContractValueToFairValue	100000	USD
CY2011Q3	pnm	Fair Value Disclosure Derivative Reconciling Amount From Contract Value To Fair Value FairValueDisclosureDerivativeReconcilingAmountFromContractValueToFairValue	1400000	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityGainLossIncludedInEarnings	201000	USD
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CY2011Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityGainLossIncludedInEarnings	-5025000	USD
CY2010Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityGainLossIncludedInEarnings	-945000	USD
CY2011Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersIntoLevel3	0	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersIntoLevel3	0	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersIntoLevel3	0	USD
CY2010Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersIntoLevel3	0	USD
CY2011Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersOutOfLevel3	0	USD
CY2010Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersOutOfLevel3	0	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersOutOfLevel3	0	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityTransfersOutOfLevel3	0	USD
CY2011Q2	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityValue	4392000	USD
CY2010Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityValue	-1272000	USD
CY2010Q4	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityValue	-822000	USD
CY2011Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityValue	938000	USD
CY2010Q2	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityValue	-278000	USD
CY2009Q4	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityValue	248000	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesPurchases	34000	USD
CY2010Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesPurchases	34000	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesPurchases	3163000	USD
CY2011Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesPurchases	429000	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesSettlements	1604000	USD
CY2011Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesSettlements	-1142000	USD
	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesSettlements	-205000	USD
CY2010Q3	pnm	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liabilities Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilitiesSettlements	83000	USD
CY2010Q4	pnm	Goodwill Excluding Amount In Asset Held For Sale GoodwillExcludingAmountInAssetHeldForSale	321310000	USD
CY2011Q3	pnm	Goodwill Excluding Amount In Asset Held For Sale GoodwillExcludingAmountInAssetHeldForSale	278297000	USD
	pnm	Gross Margin GrossMargin	735627000	USD
CY2010Q3	pnm	Gross Margin GrossMargin	288484000	USD
CY2011Q3	pnm	Gross Margin GrossMargin	298644000	USD
	pnm	Gross Margin GrossMargin	769933000	USD
	pnm	Increase Decrease In Accounts Receivable And Unbilled Revenues IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues	88462000	USD
	pnm	Increase Decrease In Accounts Receivable And Unbilled Revenues IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues	44710000	USD
	pnm	Increase Decrease In Accrued Interest And Taxes IncreaseDecreaseInAccruedInterestAndTaxes	33049000	USD
	pnm	Increase Decrease In Accrued Interest And Taxes IncreaseDecreaseInAccruedInterestAndTaxes	141478000	USD
CY2010Q3	pnm	Incremental Common Shares Attributable To Conversion Of Preferred Stock Basic IncrementalCommonSharesAttributableToConversionOfPreferredStockBasic	4778000	shares
CY2011Q3	pnm	Incremental Common Shares Attributable To Conversion Of Preferred Stock Basic IncrementalCommonSharesAttributableToConversionOfPreferredStockBasic	4363000	shares
	pnm	Incremental Common Shares Attributable To Conversion Of Preferred Stock Basic IncrementalCommonSharesAttributableToConversionOfPreferredStockBasic	4638000	shares
	pnm	Incremental Common Shares Attributable To Conversion Of Preferred Stock Basic IncrementalCommonSharesAttributableToConversionOfPreferredStockBasic	4778000	shares
CY2010Q4	pnm	Investment In Pvngs Lessor Notes InvestmentInPvngsLessorNotes	103871000	USD
CY2011Q3	pnm	Investment In Pvngs Lessor Notes InvestmentInPvngsLessorNotes	79390000	USD
CY2011Q3	pnm	Liability For Purchase Of Stock LiabilityForPurchaseOfStock	73475000	USD
	pnm	Non Controlling Interest Transactions With Its Owner NonControllingInterestTransactionsWithItsOwner	-11972000	USD
CY2011Q3	pnm	Other Deferred Costs Net Including Deferred Finance Costs OtherDeferredCostsNetIncludingDeferredFinanceCosts	85343000	USD
CY2010Q4	pnm	Other Deferred Costs Net Including Deferred Finance Costs OtherDeferredCostsNetIncludingDeferredFinanceCosts	94376000	USD
CY2010Q3	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	321000	USD
	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	7078000	USD
	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	-391000	USD
CY2011Q3	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	-7039000	USD
	pnm	Other Operating Expenses OtherOperatingExpenses	432430000	USD
CY2010Q3	pnm	Other Operating Expenses OtherOperatingExpenses	144096000	USD
	pnm	Other Operating Expenses OtherOperatingExpenses	457454000	USD
CY2011Q3	pnm	Other Operating Expenses OtherOperatingExpenses	147990000	USD
	pnm	Payments Of Debt Issuance Costs And Other PaymentsOfDebtIssuanceCostsAndOther	100000	USD
	pnm	Payments Of Debt Issuance Costs And Other PaymentsOfDebtIssuanceCostsAndOther	4423000	USD
	pnm	Payments Received On Pvngs Firm Sales Contracts PaymentsReceivedOnPvngsFirmSalesContracts	2558000	USD
	pnm	Payments Received On Pvngs Firm Sales Contracts PaymentsReceivedOnPvngsFirmSalesContracts	22872000	USD
CY2010Q3	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	-132000	USD
	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	-396000	USD
	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	-396000	USD
CY2011Q3	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	-132000	USD
	pnm	Proceeds From Transmission Interconnection Arrangements ProceedsFromTransmissionInterconnectionArrangements	0	USD
	pnm	Proceeds From Transmission Interconnection Arrangements ProceedsFromTransmissionInterconnectionArrangements	1246000	USD
CY2010Q4	pnm	Public Utilities Property Plant And Equipment In Service Net PublicUtilitiesPropertyPlantAndEquipmentInServiceNet	3233921000	USD
CY2011Q3	pnm	Public Utilities Property Plant And Equipment In Service Net PublicUtilitiesPropertyPlantAndEquipmentInServiceNet	3311714000	USD
	pnm	Pvngs Firm Sales Contract Revenue PvngsFirmSalesContractRevenue	-43535000	USD
	pnm	Pvngs Firm Sales Contract Revenue PvngsFirmSalesContractRevenue	-2558000	USD
CY2010Q3	pnm	Regulatory Disallowance RegulatoryDisallowance	0	USD
	pnm	Regulatory Disallowance RegulatoryDisallowance	0	USD
CY2011Q3	pnm	Regulatory Disallowance RegulatoryDisallowance	0	USD
	pnm	Regulatory Disallowance RegulatoryDisallowance	21402000	USD
	pnm	Repayment Of Transmission Interconnection Agreements RepaymentOfTransmissionInterconnectionAgreements	4637000	USD
	pnm	Repayment Of Transmission Interconnection Agreements RepaymentOfTransmissionInterconnectionAgreements	0	USD
	pnm	Return Of Principal On Pvngs Lessor Notes ReturnOfPrincipalOnPvngsLessorNotes	32274000	USD
	pnm	Return Of Principal On Pvngs Lessor Notes ReturnOfPrincipalOnPvngsLessorNotes	29851000	USD
CY2011Q3	pnm	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Shares Above Entities Stock Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingSharesAboveEntitiesStockPrice	1923608	shares
	pnm	Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue	1027000	USD
	pnm	Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue	1189000	USD
CY2010Q4	pnm	Total Deferred Charges And Other Assets TotalDeferredChargesAndOtherAssets	949842000	USD
CY2011Q3	pnm	Total Deferred Charges And Other Assets TotalDeferredChargesAndOtherAssets	940883000	USD
CY2010Q4	pnm	Total Other Property And Investments TotalOtherPropertyAndInvestments	286917000	USD
CY2011Q3	pnm	Total Other Property And Investments TotalOtherPropertyAndInvestments	256169000	USD
CY2011Q3	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	17925000	USD
CY2010Q3	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	15012000	USD
	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	44574000	USD
	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	52962000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
	dei	Document Period End Date DocumentPeriodEndDate	2011-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001108426
CY2011Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	86673174	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	PNM RESOURCES INC

Files In Submission

Name	View Source	Status
0001108426-11-000079-index-headers.html	Edgar Link	pending
0001108426-11-000079-index.html	Edgar Link	pending
0001108426-11-000079.txt	Edgar Link	pending
0001108426-11-000079-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
pnm-20110930.xml	Edgar Link	completed
pnm-20110930.xsd	Edgar Link	pending
pnm-20110930_cal.xml	Edgar Link	unprocessable
pnm-20110930_def.xml	Edgar Link	unprocessable
pnm-20110930_lab.xml	Edgar Link	unprocessable
pnm-20110930_pre.xml	Edgar Link	unprocessable
pnm930201110-q.htm	Edgar Link	pending
pnm9302011ex121.htm	Edgar Link	pending
pnm9302011ex122.htm	Edgar Link	pending
pnm9302011ex123.htm	Edgar Link	pending
pnm9302011ex124.htm	Edgar Link	pending
pnm9302011ex311.htm	Edgar Link	pending
pnm9302011ex312.htm	Edgar Link	pending
pnm9302011ex313.htm	Edgar Link	pending
pnm9302011ex314.htm	Edgar Link	pending
pnm9302011ex315.htm	Edgar Link	pending
pnm9302011ex316.htm	Edgar Link	pending
pnm9302011ex321.htm	Edgar Link	pending
pnm9302011ex322.htm	Edgar Link	pending
pnm9302011ex323.htm	Edgar Link	pending
pnm9302011ex36.htm	Edgar Link	pending
pnm9302011ex991.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
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R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$TXNM
TXNM ENERGY INC Stock $txnm

2011 Q4 Form 10-Q Financial Statement

#000110842611000079 Filed on November 04, 2011

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TXNM TXNM ENERGY INC Stock $txnm

2011 Q4 Form 10-Q Financial Statement

#000110842611000079 Filed on November 04, 2011

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TXNM
TXNM ENERGY INC Stock $txnm