Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income	$ 7,601	$ 8,073
Other comprehensive income (loss), net of tax of $295 and $176 for the three months ended March 31, 2012 and 2011, respectively:
Foreign currency translation adjustment	(2,087)	(3,869)
Comprehensive income	$ 9,688	$ 11,942