ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
AOCI Cash Flow Hedging Component [Abstract]
Beginning Balance - Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax			$ (16,400,000)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	500,000		1,000,000
Ending Balance - Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax	(15,400,000)		(15,400,000)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	514,000	516,000	1,030,000	939,000
AOCI Unrealized GainLoss component [Abstract]
AOCI Unrealized Gains/Losses on Other Securities			1,300,000
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax			(700,000)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(591,000)	160,000	(772,000)	194,000
AOCI Unrealized Gains/Losses on Other Securities-Ending Balance	600,000		600,000
AOCI Defined Benefit Component [Abstract]
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax			(57,800,000)
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	1,500,000		3,100,000
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	1,506,000	1,759,000	3,127,000	3,166,000
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(54,700,000)		(54,700,000)
AOCI Rollforward [Abstract]
AOCI Beginning Balance			(72,854,000)
AmountReclassifiedFromAOCI	2,000,000		4,100,000
OtherComprehensiveIncomeBeforeReclassifications			(700,000)
Other Comprehensive Income (Loss), Net of Tax, Total	1,429,000	2,435,000	3,385,000	4,299,000
AOCI ending Balance	(69,469,000)		(69,469,000)
Reclassication of Items out of AOCI [Abstract]
OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	(800,000)		(1,700,000)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	(500,000)		(1,000,000)
OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	300,000		700,000
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	(2,200,000)		(4,700,000)
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Benefit Cost, before Tax			100,000
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	(2,200,000)		(4,800,000)
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	(1,500,000)		(3,100,000)
AmountReclassifiedFromAOCI	(2,000,000)		(4,100,000)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	$ 700,000		$ 1,700,000