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	$ 3,790	$ 3,467	$ 5,672	$ 497
Other comprehensive income (loss):
Impact to revalue unfunded projected benefit obligation, net of tax of $0			(2)
Foreign currency translation adjustment, net of tax of $0	121	58	(310)	(30)
Comprehensive income	$ 3,911	$ 3,525	$ 5,360	$ 467