Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 country	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Minimum number of countries for which entity has operations	50
Percentage of sales outside of the Americas during the period	60.00%	59.00%	60.00%
Period of protection against the reduction in value caused by a fluctuation, minimum (in number of years)	1 year
Period of protection against the reduction in value caused by a fluctuation, maximum (in number of years)	3 years
Duration of derivative contracts entered into by the entity to hedge risk of loss	36 months
Foreign currency forward contracts notional amount	$ 199,113,000	$ 139,624,000
Forward Contracts [Member]
Derivative [Line Items]
Estimated amount of reclassification of gains on derivative instruments from accumulated other comprehensive income to net sales	14,500,000
Estimated amount of reclassification of losses on derivative instruments from accumulated other comprehensive income to cost of sales	1,200,000
Estimated amount of reclassification of gains on derivative instruments from accumulated other comprehensive income to operating expenses	766,000
Other Derivatives [Member]
Derivative [Line Items]
Foreign currency forward contracts notional amount	$ 78,000,000	$ 70,000,000
Maximum [Member] | Forward Contracts [Member]
Derivative [Line Items]
Percentage of derivative risk hedged	100.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss	40 months
Maximum [Member] | Other Derivatives [Member]
Derivative [Line Items]
Percentage of derivative risk hedged	90.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss	120 days