Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Mar. 31, 2013	Sep. 30, 2012	Mar. 31, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 8,685		$ 7,601
Other comprehensive income (loss), net of tax of ($493) and $295 for the three months ended March 31, 2013 and 2012, respectively:
Foreign currency translation adjustment	2,370		(2,087)
Comprehensive income	6,315		9,688
Other Comprehensive Income (Loss), Tax		$ (493)		$ 295	$ (880)