ACCUMULATED OTHER COMPREHENSIVE LOSS (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
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			$ (32,169)
Net current period other comprehensive income	28,906	5,851	28,096	(255)
Other comprehensive (loss) income, net of tax			26,366
Ending balance	(6,625)		(6,625)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(37,302)		(25,073)
Other comprehensive income	13,976		1,747
Amounts reclassified from accumulated other comprehensive loss	0		0
Net current period other comprehensive income	13,976		1,747
Ending balance	(23,326)		(23,326)
Unrealized (Losses) Gains On Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	5,115		(7,096)
Other comprehensive income	16,899		19,691
Amounts reclassified from accumulated other comprehensive loss	(5,313)		4,106
Net current period other comprehensive income	11,586		23,797
Ending balance	16,701		16,701
Unrealized (Losses) Gains On Available-For-Sale Securities | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss		100		900
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(32,187)		(32,169)
Other comprehensive income	30,875		21,438
Amounts reclassified from accumulated other comprehensive loss	(5,313)		4,106
Other comprehensive (loss) income, net of tax	25,562		25,544
Ending balance	$ (6,625)		$ (6,625)