Accounting Policies (Schedule of Foreign Currency Transaction Gains and Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Selling, general, and administrative expenses	$ 341	$ 1,642	$ (2,677)
Other expense/(income), net	5,227	5,708	(84)
Total transaction losses/(gains)	$ 5,568	$ 7,350	$ (2,761)