EMPLOYEE BENEFIT PLANS (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 14,131	$ 13,633	$ 12,307
Return On Plan Assets Over Last 15 Years	6.98%
Defined Benefit Plan, Contributions by Employer	$ 0	$ 0
Assumed discount rate	4.75%	5.50%	6.00%
Assumed rate of salary increases	4.00%	4.50%	4.50%
Expected long-term rate of return on plan assets	7.50%	7.75%	8.00%
Return On Plan Assets Over Last 10 Years	8.77%
Return Plan Assets Over Last 5 Years	5.81%
Number Of Days Until Elgible For 401 K Plan	31 days
Percent Of Employee Contribution Match To 401 K	75.00%