1.0.0.3 false CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands false 1 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 2 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 3 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 4 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 5 Consolidated net income 3 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 806170000 806170 false false 2 true true 796631000 796631 false false 3 true true 1442894000 1442894 false false 4 true true 1604607000 1604607 false false No definition available. No authoritative reference available. false 7 Qualifying hedges: 4 us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 8 Changes in fair value, net of tax of $(1,356), $11,996, $(2,338), and $579, respectively 5 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -2151000 -2151 false false 2 false true 18603000 18603 false false 3 false true -3815000 -3815 false false 4 false true 690000 690 false false No definition available. No authoritative reference available. false 9 Reclassification adjustment for amounts included in net income, net of tax of $4,610, $1,730, $13,073 and $5,879, respectively 5 us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 7339000 7339 false false 2 false true 2709000 2709 false false 3 false true 20807000 20807 false false 4 false true 9217000 9217 false false No definition available. No authoritative reference available. false 10 Marketable securities: 4 us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 11 Change in fair value, net of tax $(1,056), $163, $239, and $(2,293), respectively 5 us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -1359000 -1359 false false 2 false true 86000 86 false false 3 false true 2310000 2310 false false 4 false true -3940000 -3940 false false No definition available. No authoritative reference available. false 12 Reclassification adjustment for amounts included in net income, net of tax of $-, $3, $-, and $3, respectively 5 us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 4000 4 false false 3 false true 0 0 false false 4 false true 4000 4 false false No definition available. No authoritative reference available. false 13 Pension and other post retirement benefit plans: 4 us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 14 Reclassification adjustment for amounts included in net income, net of tax of $222, $237, $665, and $773, respectively 5 us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 350000 350 false false 2 false true 376000 376 false false 3 false true 1049000 1049 false false 4 false true 1258000 1258 false false No definition available. No authoritative reference available. true 15 Total other comprehensive income (loss) 4 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 4179000 4179 false false 2 false true 21778000 21778 false false 3 false true 20351000 20351 false false 4 false true 7229000 7229 false false No definition available. No authoritative reference available. true 16 Dividends on preferred and preference stock of subsidiaries 3 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -16195000 -16195 false false 2 false true -16195000 -16195 false false 3 false true -48585000 -48585 false false 4 false true -48585000 -48585 false false No definition available. No authoritative reference available. true 17 Comprehensive Income 3 us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 794154000 794154 false false 2 true true 802214000 802214 false false 3 true true 1414660000 1414660 false false 4 true true 1563251000 1563251 false false No definition available. No authoritative reference available. true false 4 12 false Thousands UnKnown UnKnown false true