ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Dec. 31, 2014
Accumulated other comprehensive loss [Abstract]
Foreign currency translation adjustment, net of taxes of ($302) and ($142) at March 31, 2015 and December 31, 2014, respectively	$ (19,729)		$ (9,365)
Unrealized holding gains on available-for-sale securities, net of taxes of $293 and $259 as of March 31, 2015 and December 31, 2014, respectively	483		429
Unfunded SERP liability, net of taxes of ($1,297) and ($1,325) as of March 31, 2015 and December 31, 2014, respectively	(2,962)		(3,026)
Accumulated other comprehensive loss, tax [Abstract]
Foreign currency translation adjustment, tax	(302)		(142)
Unrealized holding gains on available-for-sale securities, tax	293		259
Unfunded SERP liability, tax	(1,297)		(1,325)
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period	(11,962)
Other comprehensive (loss) income before reclassifications	(10,310)
Amount reclassified from accumulated other comprehensive loss	64
Net current period other comprehensive (loss) income	(10,246)
Balance at end of period	(22,208)
Foreign Currency Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period	(9,365)
Other comprehensive (loss) income before reclassifications	(10,364)
Amount reclassified from accumulated other comprehensive loss	0
Net current period other comprehensive (loss) income	(10,364)
Balance at end of period	(19,729)
Unrealized Holding Gains on Available-for-Sale Securities [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Balance at beginning of period	429
Other comprehensive (loss) income before reclassifications	54
Amount reclassified from accumulated other comprehensive loss	0
Net current period other comprehensive (loss) income	54
Balance at end of period	483
Unfunded SERP Liability [Member]
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	64	[1]
Net current period other comprehensive (loss) income	64
Balance at end of period	$ (2,962)

[1] This reclassification relates to the amortization of prior service costs and gains/losses 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.