STOCKHOLDERS' EQUITY (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Unrecognized net periodic benefit costs:
INCOME BEFORE INCOME TAXES	$ 32,556	$ 21,004	$ 50,972	$ 5,566
Tax benefit	(12,938)	(7,022)	(19,339)	(101)
NET INCOME	19,618	13,982	31,633	5,465
Unrecognized Net Periodic Benefit Costs | Amounts Reclassified from Accumulated Other Comprehensive Loss
Unrecognized net periodic benefit costs:
Amortization of net actuarial loss			(1,968)
Amortization of prior service credit			142
Pension settlement expense			(5,405)
INCOME BEFORE INCOME TAXES			(7,231)
Tax benefit			2,813
NET INCOME			$ (4,418)