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ACCUMULATED OTHER COMPREHENSIVE INCOME (Details 2) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Amount Reclassified from Accumulated Other Comprehensive Income    
Changes in treasury locks $ 5,081 $ 5,242
Net loss on derivatives (849) (1,028)
Total before tax (59,402) (66,277)
Tax benefit 19,424 22,464
Total reclassifications for the period (40,029) (43,809)
Amount Reclassified from Accumulated Other Comprehensive Income
    
Amount Reclassified from Accumulated Other Comprehensive Income    
Total reclassifications for the period 1,194 756
Defined Benefit Pension Plans | Amount Reclassified from Accumulated Other Comprehensive Income
    
Amount Reclassified from Accumulated Other Comprehensive Income    
Amortization of net loss 1,786 1,085
Amortization of prior service cost 94 93
Total before tax 1,880 1,178
Tax benefit (701) (430)
Total reclassifications for the period 1,179 748
Other | Amount Reclassified from Accumulated Other Comprehensive Income
    
Amount Reclassified from Accumulated Other Comprehensive Income    
Total before tax 23 13
Tax benefit (8) (5)
Total reclassifications for the period 15 8
Other | Treasury locks | Amount Reclassified from Accumulated Other Comprehensive Income
    
Amount Reclassified from Accumulated Other Comprehensive Income    
Changes in treasury locks 23 23
Other | Foreign exchange contract | Amount Reclassified from Accumulated Other Comprehensive Income
    
Amount Reclassified from Accumulated Other Comprehensive Income    
Net loss on derivatives   $ (10)