Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 country	Dec. 31, 2011 country
Derivative Instruments And Hedging Activities [Line Items]
Minimum number of countries for which entity has operations	40	40
Percentage of sales outside of the Americas during the period	60.00%	60.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss	P24M	P24M
Notional amount	$ 162,984,000	$ 136,059,000
Forward Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Estimated amount of reclassification of losses on derivative instruments from accumulated other comprehensive income to net sales	1,600,000
Estimated amount of reclassification of losses on derivative instruments from accumulated other comprehensive income to cost of sales	34,000
Estimated amount of reclassification of losses on derivative instruments from accumulated other comprehensive income to operating expenses	65,000
Other Derivatives [Member]
Derivative Instruments And Hedging Activities [Line Items]
Foreign currency forward contracts notional amount	69,000,000	53,800,000
EURO Currency [Member]
Derivative Instruments And Hedging Activities [Line Items]
Notional amount	84,770,000	60,992,000
Japanese Yen [Member]
Derivative Instruments And Hedging Activities [Line Items]
Notional amount	42,209,000	43,569,000
Korean Won [Member]
Derivative Instruments And Hedging Activities [Line Items]
Notional amount		3,309,000
Hungarian Forint [Member]
Derivative Instruments And Hedging Activities [Line Items]
Notional amount	$ 36,005,000	$ 28,189,000
Maximum [Member] | Forward Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Percentage of derivative risk hedged	100.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss	40
Maximum [Member] | Other Derivatives [Member]
Derivative Instruments And Hedging Activities [Line Items]
Percentage of derivative risk hedged	90.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss	120