EMPLOYEE BENEFIT PLANS Table 2 (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]
Disposition charges	$ 5,700
Pension Plans (The Pension Plan, Excess Pension Plan and SERP) [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	15,614	12,484	11,384
Interest cost	4,012	2,881	2,233
Expected return on assets	(3,917)	(3,617)	(2,314)
Amortization of prior service credit	(18)	(18)	(18)
Amortization of net loss	1,393	485	542
Net periodic benefit cost before disposition charges	17,084	12,215	11,827
Disposition charges	4,397	0	0
Net periodic benefit cost	21,481	12,215	11,827
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,258	1,040	904
Interest cost	976	888	832
Expected return on assets	0	0	0
Amortization of prior service credit	0	0	0
Amortization of net loss	139	71	83
Net periodic benefit cost before disposition charges	2,373	1,999	1,819
Disposition charges	1,284	0	0
Net periodic benefit cost	$ 3,657	$ 1,999	$ 1,819