Derivatives (Schedule Of Cash Flow Hedges) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Loss Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	$ (190)	$ 61	$ (121)	$ (231)
Pretax Gain Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	3	(71)	(29)	(24)
Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Loss Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	(119)	31	(75)	(139)
Pretax Gain Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	3	(41)	(15)	(2)
Research And Development [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Loss Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	(36)	16	(22)	(53)
Pretax Gain Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	0	(17)	(7)	(12)
Selling and Marketing Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Loss Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	(35)	14	(24)	(39)
Pretax Gain Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	$ 0	$ (13)	$ (7)	$ (10)