Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 1,742	$ 148	$ 643
State	515	131	75
Non-U.S	2,542	738	1,499
Current income tax provision	4,799	1,017	2,217
Deferred:
Federal	963	2,201	982
State	386	409	355
Non-U.S	3,067	4,218	4,278
Deferred income tax provision (benefit)	4,416	6,828	5,615
Total	$ 9,215	$ 7,845	$ 7,832