EMPLOYEE BENEFIT PLANS (Details 4)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Plans, Defined Benefit [Member]
Net benefit obligation, Weighted average discount rate	4.00%	4.50%	5.50%
Net pension expense, Weighted average discount rate	4.50%	5.50%	6.00%
Expected long-term rate of return	7.75%	7.75%	8.25%
Supplemental Employee Retirement Plans, Defined Benefit [Member]
Net benefit obligation, Weighted average discount rate	4.00%	4.50%	5.50%
Net pension expense, Weighted average discount rate	4.50%	5.50%	6.00%
Expected long-term rate of return	7.75%	7.75%	8.25%