ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME - Summary of components of accumulated other comprehensive (loss) income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Pension Adjustment
Balance			$ (14,688)		$ (12,981)
Change during the period:
Before-tax amount
Tax benefit (expense)
Reclassification adjustment, net of taxes:
Amortization of net loss			372	[1]	318	[1]
Total activity for the period	125	106	372		318
Balance	(14,316)	(12,663)	(14,316)		(12,663)
Unrealized Gain (Loss) On Securities
Balance			29		187
Change during the period:
Before-tax amount			(3)		(186)
Tax benefit (expense)			1		68
Reclassification adjustment, net of taxes:
Amortization of net loss				[1]		[1]
Total activity for the period	28	3	(2)		(118)
Balance	27	69	27		69
Foreign Currency Translation
Balance			413		148
Change during the period:
Before-tax amount			(413)		307
Tax benefit (expense)					(112)
Reclassification adjustment, net of taxes:
Amortization of net loss				[1]		[1]
Total activity for the period	214	213	(413)		195
Balance		343			343
Total
Balance			(14,246)		(12,646)
Change during the period:
Before-tax amount			(416)		121
Tax benefit (expense)			1		(44)
Reclassification adjustment, net of taxes:
Amortization of net loss			372	[1]	318	[1]
Total activity for the period			(43)		395
Balance	$ (14,289)	$ (12,251)	$ (14,289)		$ (12,251)

[1] Reported as part of selling, general and administrative expenses.