Derivative Instruments (Notional Amount Of Foreign Exchange Contracts) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Amount Available in Dollars	$ 30,019,000
Foreign Exchange Contract 1 [Member]
Derivative [Line Items]
Transaction Date	2014-09
Amount Available in Dollars	675,000	900,000
Effective Date	2015-01
Expiration Date	2015-12
Foreign Exchange Contract 2 [Member]
Derivative [Line Items]
Transaction Date	2014-10
Amount Available in Dollars	675,000	900,000
Effective Date	2015-01
Expiration Date	2015-12
Foreign Exchange Contract 3 [Member]
Derivative [Line Items]
Transaction Date	2014-12
Amount Available in Dollars	450,000	600,000
Effective Date	2015-01
Expiration Date	2015-12
Foreign Exchange Contract 4 [Member]
Derivative [Line Items]
Transaction Date	2014-05
Amount Available in Dollars	$ 28,219,000
Effective Date	2015-01
Expiration Date	2015-12