ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2015		Sep. 30, 2015	Dec. 31, 2014
Accumulated other comprehensive loss [Abstract]
Foreign currency translation adjustment, net of taxes of ($336) at September 30, 2015 and ($142) at December 31, 2014				$ (17,591)	$ (9,351)
Unrealized holding gains on available-for-sale securities, net of taxes of $220 at September 30, 2015 and $259 at December 31, 2014				365	429
Unfunded SERP liability, net of taxes of ($1,240) at September 30, 2015 and ($1,325) at December 31, 2014				(2,835)	(3,026)
Accumulated other comprehensive loss		$ (11,948)	[1]	(20,061)	(11,948)	[1]
Accumulated other comprehensive loss, tax [Abstract]
Foreign currency translation adjustment, tax				(336)	(142)
Unrealized holding gains on available-for-sale securities, tax				220	259
Unfunded SERP liability, tax				(1,240)	(1,325)
Amortization of prior service costs		300
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period	[1]	(11,948)
Other comprehensive (loss) income before reclassifications		(8,304)
Amount reclassified from accumulated other comprehensive loss		191
Net current period other comprehensive (loss) income		(8,113)
Balance at end of period		(20,061)
Foreign Currency Translation Adjustment [Member]
Accumulated other comprehensive loss [Abstract]
Accumulated other comprehensive loss		(9,351)		(17,591)	(9,351)
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period		(9,351)
Other comprehensive (loss) income before reclassifications		(8,240)
Amount reclassified from accumulated other comprehensive loss		0
Net current period other comprehensive (loss) income		(8,240)
Balance at end of period		(17,591)
Unrealized Holding Gains on Available-for-Sale Securities [Member]
Accumulated other comprehensive loss [Abstract]
Accumulated other comprehensive loss		429		365	429
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period		429
Other comprehensive (loss) income before reclassifications		(64)
Amount reclassified from accumulated other comprehensive loss		0
Net current period other comprehensive (loss) income		(64)
Balance at end of period		365
Unfunded SERP Liability [Member]
Accumulated other comprehensive loss [Abstract]
Accumulated other comprehensive loss		(3,026)		$ (2,835)	$ (3,026)
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period		(3,026)
Other comprehensive (loss) income before reclassifications		0
Amount reclassified from accumulated other comprehensive loss	[2]	191
Net current period other comprehensive (loss) income		191
Balance at end of period		$ (2,835)

[1] Revised

[2] This reclassification relates to the amortization of prior service costs and gains/losses of $0.3 million (pre-tax) associated with the Company's SERP plan. This expense is allocated between cost of sales and selling, general and administrative expense based upon the employment classification of the plan participants.