Derivative Instruments And Hedging (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
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	$ 600,000
General duration of foreign currency exchange contracts	24 months
Notional Amount of Foreign Currency Exchange Contracts	179,000,000	168,300,000
Interest Rate Swap Effective On March 30, 2012 [Member]
Derivative [Line Items]
Fixed portion of interest rate associated with interest rate swap	1.36%
Credit Facility borrowings hedged	40,000,000
Interest Rate Swap Effective On March 28, 2013 [Member]
Derivative [Line Items]
Fixed portion of interest rate associated with interest rate swap	1.64%
Credit Facility borrowings hedged	$ 40,000,000