Derivative Instruments And Hedging (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Interest Rate Swap Effective On March 30, 2012 [Member]	Mar. 31, 2012 Interest Rate Swap Effective On March 30, 2010 [Member]	Dec. 31, 2013 Interest Rate Swap Effective On March 28, 2013 [Member]
Derivative [Line Items]
Estimated net amount of losses that are expected to be reclassified out of accumulated other comprehensive income and into earnings within the next 12 months	$ 200,000
General duration of foreign currency exchange contracts	2 years
Fixed portion of interest rate associated with interest rate swap			1.36%	2.00%	1.64%
Credit Facility borrowings hedged	80,000,000		40,000,000	80,000,000	40,000,000
Notional Amount of Foreign Currency Exchange Contracts	$ 168,300,000	$ 157,000,000