Income Taxes - Schedule of Income Tax Expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ (2,134)	$ (272)	$ (4,643)
State	(286)	2,189	1,292
Foreign	9,606	7,652	8,163
Total current income tax expense (benefit)	7,186	9,569	4,812
Deferred
Federal	1,113	11,127	992
State	651	40	(1,560)
Foreign	(360)	107	(356)
Total deferred income tax expense (benefit)	1,404	11,274	(924)
Income tax expense	$ 8,590	$ 20,843	$ 3,888