Summary of Significant Accounting Policies - Schedule of Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Foreign currency adjustment	$ (3,537)	$ (4,254)	$ (4,624)
Pension loss adjustment, net of tax of $805 in 2013, $1,040 in 2012, and $1,436 in 2011	(5,168)	(6,426)	(3,606)
Accumulated other comprehensive loss	(8,705)	(10,680)	(8,230)
Tax on pension loss adjustment	$ 805	$ 1,040	$ 1,436