Other Income (Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Income and Expenses [Abstract]
Proceeds From Non Income Tax Refunds	$ 2,876	$ 358	$ 244
Change in Fair Value Estimate	497	2,770	595
Gain on Revaluation of Existing Equity Interest in Step Purchase	0	0	2,718
Licenses Revenue	1,027	1,264	1,652
Foreign Currency Transaction Gain (Loss), Realized	(1,076)	(1,034)	(482)
Impairment of Long-Lived Assets Held-for-use	(211)	0	0
Other Nonoperating Income	629	362	591
Other Nonoperating Expense	(223)	(305)	(268)
Other Income, Net	$ 3,519	$ 3,415	$ 5,050