EMPLOYEE BENEFIT PLANS (Components Of Pension Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	$ 123,858	$ 72,089
Service cost	13,265	12,191
Interest cost	23,810	22,930
Amortization of prior service cost	(210)	(210)	(210)
Amortization of net actuarial loss	6,861	3,800	3,604
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	1,397	1,607
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax	125,255	73,696
Defined Benefit Plan, Actuarial Net (Gains) Losses	58,630	6,815	(49,889)
Total change in pension obligation, net of tax	51,559	2,805	(53,703)
Defined Benefit Plan Total Recognized In Net Periodic Benefit Cots And Other Comprehensive Income	66,521	12,662	(43,041)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	13,265	12,191	12,661
Interest cost	23,810	22,930	21,900
Expected return on assets	(29,184)	(29,274)	(27,713)
Amortization of prior service cost	210	210	210
Amortization of net actuarial loss	6,861	3,800	3,604
Total pension expense	$ 14,962	$ 9,857	$ 10,662