ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation ending balance	$ 14,952	$ 11,627	$ 7,725
Foreign currency translation	0		0
Actuarial gains related to defined benefit pension plans	2,153	5,066	(1,712)
Foreign currency translation adjustments, net of tax benefit (expense) of $0 in 2013, $(27) in 2012 and $147 in 2011	3,325	3,902	(6,863)
Actuarial gains (losses) related to defined benefit pension plans, net of tax benefit (expense) of $(1,210) in 2013, $2,628 in 2012 and $0 in 2011	2,913	(6,778)	(197)
Unrealized Gain (Loss) on Investments	147	(946)	179
Other comprehensive income (loss) before reclassifications	6,385	(3,822)
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	0		0
Reclassification from accumulated other comprehensive income		786
Net increase (decrease) in other comprehensive income	6,385	(3,036)
Change in unrealized gain or loss on investment	(2)	(149)	11
Accumulated other comprehensive income ending balance	12,797	6,412	9,448
Change in unrealized loss or gain on investment [Domain]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in unrealized gain or loss		$ (160)