Derivative Instruments And Hedging Activities (Fair Values Of Derivative Instruments On Consolidated Statements Of Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	$ 3,152	$ (305)
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	3,513	(1,921)
Cash Flow Hedging [Member] | Foreign Exchange Contracts - Forwards And Options [Member] | Net Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	30	3,980
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	2,852	(3,855)
Cash Flow Hedging [Member] | Foreign Exchange Contracts - Forwards And Options [Member] | Cost Of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	2,036	(2,889)
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	402	1,378
Cash Flow Hedging [Member] | Foreign Exchange Contracts - Forwards And Options [Member] | Operating Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	1,086	(1,396)
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	259	556
Derivatives Not Designated As Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	(2,076)	951
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Forward [Member] | Foreign Currency Gain (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	$ (2,076)	$ 951