CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
NET INCOME	$ 18,307	$ 16,236	$ 41,842	$ 36,106
Other comprehensive (loss) income:
Foreign currency translation adjustment	(295)	191	(45)	(152)
Total other comprehensive (loss) income	(295)	191	(45)	(152)
COMPREHENSIVE INCOME	$ 18,012	$ 16,427	$ 41,797	$ 35,954