Derivatives (Schedule Of Cash Flow Hedges) (Details) $ in Thousands	9 Months Ended
Sep. 30, 2017 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	$ 53
Pretax Loss Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	(36)
Cost of revenues
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	32
Pretax Loss Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	(27)
Research and development
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	14
Pretax Loss Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	(6)
Selling, general and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain Recognized in Other Comprehensive Income (Loss) on Effective Portion of Derivative	7
Pretax Loss Recognized in Earnings on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Loss	$ (3)

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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