Condensed Consolidated Statements of Comprehensive Income (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 Comprehensive Income [Abstract]
Net income	$ 20,451	$ 18,502	$ 32,538	$ 23,297
Other comprehensive loss
Translation adjustment, net of tax benefit (expense) of $33 and $0, $44 and ($84), respectively	(1)	(999)	(1,194)	(6,815)
Comprehensive income	$ 20,450	$ 17,503	$ 31,344	$ 16,482