STOCKHOLDERS' EQUITY (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	$ 14,320	$ (8,067)
Other comprehensive loss before reclassifications	(4,445)	18,417
Amounts reclassified from accumulated other comprehensive income (loss)	220	210
Net current period other comprehensive income (loss)	(4,225)	18,627
Balance	10,095	10,560
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	25,463	943
Other comprehensive loss before reclassifications	(4,387)	18,216
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Net current period other comprehensive income (loss)	(4,387)	18,216
Balance	21,076	19,159
Market Value Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(4,326)	(1,355)
Other comprehensive loss before reclassifications	(58)	201
Amounts reclassified from accumulated other comprehensive income (loss)	10	0
Net current period other comprehensive income (loss)	(48)	201
Balance	(4,374)	(1,154)
Deferred Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(6,817)	(7,655)
Other comprehensive loss before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	210	210
Net current period other comprehensive income (loss)	210	210
Balance	$ (6,607)	$ (7,445)