EMPLOYEE BENEFITS (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Notes Details [Abstract]
Service cost	$ 2,567,000	$ 5,015,000	$ 5,294,000	$ 10,029,000
Interest cost	2,119,000	3,203,000	4,469,000	6,405,000
Expected return on assets	(1,769,000)	(1,553,000)	(3,538,000)	(3,106,000)
Amortization of transition asset	(36,000)	(36,000)	(71,000)	(71,000)
Amortization of unrecognized losses	746,000	1,207,000	1,862,000	2,414,000
Amortization of prior service credits	(1,852,000)	(124,000)	(3,705,000)	(248,000)
Net periodic benefit costs	1,775,000	7,712,000	4,311,000	15,423,000
Periodic Benefit Expense (Increase) Decrease			11,000,000
Company Contribution to Group Benefit Trust	$ 1,300,000		$ 2,200,000