Derivative Instruments (Effect Of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Derivatives Designated As Hedges [Member]
Derivative [Line Items]
Gains (Losses) Recognized in Income
Gains Recognized in OCI	12		15
Gains (Losses) Reclassified From OCI into Income
Non-Designated Derivatives [Member]
Derivative [Line Items]
Gains (Losses) Recognized in Income	(2,910)		(1,456)
Gains Recognized in OCI
Gains (Losses) Reclassified From OCI into Income
Interest Rate Contracts [Member] | Derivatives Designated As Hedges [Member]
Derivative [Line Items]
Gains (Losses) Recognized in Income
Gains Recognized in OCI	12		15
Gains (Losses) Reclassified From OCI into Income
Forward Currency Exchange Contracts [Member] | Non-Designated Derivatives [Member]
Derivative [Line Items]
Gains (Losses) Recognized in Income	(2,910)	[1]	(1,456)	[1]
Gains Recognized in OCI		[1]		[1]
Gains (Losses) Reclassified From OCI into Income		[1]		[1]

[1] The losses on these derivatives substantially offset the gains on the hedged portion of foreign intercompany balances.