CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 6,886	$ 1,809	$ 10,397	$ 4,595
Other comprehensive income- Cumulative translation adjustment	85	(8)	163	(2,267)
Comprehensive income	$ 6,971	$ 1,801	$ 10,560	$ 2,328