Income Taxes (Current and Deferred Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
U.S. federal	$ 988	$ (18)	$ 484
Non-U.S.	8,548	9,194	5,732
U.S. state and local	617	(72)	100
Total current income tax provision (benefit)	10,153	9,104	6,316
Deferred:
U.S. federal	564	1,264	(400)
Non-U.S.	2,517	(4,658)	(4,294)
U.S. state and local	7	(1)	21
Total deferred income tax provision (benefit)	3,088	(3,395)	(4,673)
Total:
U.S. federal	1,552	1,246	84
Non-U.S.	11,065	4,536	1,438
U.S. state and local	624	(73)	121
Total income tax provision (benefit)	$ 13,241	$ 5,709	$ 1,643