Derivative Instruments (Summary Of The Effect Of Derivative Instruments On The Consolidated Statements Of Changes In Equity And Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014	Jun. 30, 2013
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	$ (9,132)		$ 7,551		$ (2,984)	$ 9,571
Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)	(372)		(410)		(648)	(886)
Interest Rate Swap [Member]
Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)	(460)	[1]	(431)	[1]	(909)	(854)
Cross Currency Swaps [Member]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	(1,808)		1,788		25	2,079
Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)	88	[2]	(49)	[2]	261	(151)
Currency Forward Agreements [Member]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	(5,879)		4,971		(951)	6,906
Amount of Income (Expense) Reclassified from AOCI into Earnings (Effective Portion)	0	[2]	70	[2]	0	119
Interest Expense [Member] | Interest Rate Swap [Member]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	$ (1,445)		$ 792		$ (2,058)	$ 586

[1] Included in "Interest expense, net" in the accompanying consolidated statements of income for the three and six months ended June 30, 2014 and 2013.

[2] Included in "Other income" and “Other expense” in the accompanying consolidated statements of income for the three and six months ended June 30, 2014 and 2013.