Equity And Accumulated Other Comprehensive Loss, Net (Schedule Of Accumulated Other Comprehensive Loss, Net) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flow hedge adjustment, Reclassification to interest expense from interest rate swaps	$ 1,104	$ 1,585
Accumulated other comprehensive loss, net, Beginning balance	(55,880)
Accumulated other comprehensive loss, net, Ending balance	(37,175)
Foreign Currency Translation Adjustments [Member]
Foreign currency translation adjustments, Beginning balance	(49,298)
Foreign currency translation adjustments, Net current period change	18,552
Foreign currency translation adjustments, Net current period change
Foreign currency translation adjustments, Ending balance	(30,746)
Cash Flow Hedge Adjustments [Member]
Cash flow hedge adjustment, Beginning balance	(6,582)
Cash flow hedge adjustment, Net current period change	(908)
Cash flow hedge adjustment, Reclassification to interest expense from interest rate swaps	1,061
Cash flow hedge adjustments, Ending balance	(6,429)
Accumulated Other Comprehensive Loss, Net [Member]
Cash flow hedge adjustment, Reclassification to interest expense from interest rate swaps	1,061
Accumulated other comprehensive loss, net, Beginning balance	(55,880)
Accumulated other comprehensive loss, net, Net current period change	17,644
Accumulated other comprehensive loss, net, Reclassification Adjustments	1,061
Accumulated other comprehensive loss, net, Ending balance	$ (37,175)