Derivative Instruments (Effect Of Derivative Instruments) (Details) (USD $) In Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Interest Rate Contracts [Member] | Derivatives Designated As Hedges [Member]
Gains (Losses) Recognized in Income
Gains (Losses) Recognized in OCI	31		4		70		(114)
Gains (Losses) Reclassified From OCI into Income
Forward Currency Exchange Contracts [Member] | Non-Designated Derivatives [Member]
Gains (Losses) Recognized in Income	4,090	[1]	(432)	[1]	2,382	[1]	(706)	[1]
Gains (Losses) Recognized in OCI		[1]		[1]		[1]		[1]
Gains (Losses) Reclassified From OCI into Income		[1]		[1]		[1]		[1]
Derivatives Designated As Hedges [Member]
Gains (Losses) Recognized in Income
Gains (Losses) Recognized in OCI	31		4		70		(114)
Gains (Losses) Reclassified From OCI into Income
Non-Designated Derivatives [Member]
Gains (Losses) Recognized in Income	4,090		(432)		2,382		(706)
Gains (Losses) Recognized in OCI
Gains (Losses) Reclassified From OCI into Income

[1] The gains (losses) on these derivatives substantially offset the gains (losses) on foreign intercompany balances.