STOCKHOLDERS' EQUITY (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Changes in accumulated other comprehensive loss, net of tax, by component
Balances at beginning of the period			$ (14,912)
Other comprehensive loss before reclassifications			(8,206)
Amounts reclassified from accumulated other comprehensive loss			4,418
OTHER COMPREHENSIVE INCOME (LOSS), net of tax	(1,917)	4,263	(3,788)	35,902
Balances at end of the period	(18,700)		(18,700)
Unrecognized Net Periodic Benefit Costs
Changes in accumulated other comprehensive loss, net of tax, by component
Balances at beginning of the period			(14,386)
Other comprehensive loss before reclassifications			(8,072)
Amounts reclassified from accumulated other comprehensive loss			4,418
OTHER COMPREHENSIVE INCOME (LOSS), net of tax			(3,654)
Balances at end of the period	(18,040)		(18,040)
Foreign Currency Translation
Changes in accumulated other comprehensive loss, net of tax, by component
Balances at beginning of the period			(526)
Other comprehensive loss before reclassifications			(134)
OTHER COMPREHENSIVE INCOME (LOSS), net of tax			(134)
Balances at end of the period	$ (660)		$ (660)