Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements of Comprehensive Income
Net Income	$ 50,971	$ 41,918	$ 50,900
Other comprehensive income:
Translation adjustment, net of tax benefit (expense) of $29, $33 and ($1) for 2013, 2012 and 2011, respectively	5,941	5,559	(7,844)
Unamortized pension adjustments, net of tax benefit of ($3) and $46 for 2013 and 2012, respectively	46	(243)
Comprehensive income	$ 56,958	$ 47,234	$ 43,056