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Details Of Certain Accounts (Other Assets, Net) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Details Of Certain Accounts [Abstract]    
Restricted cash $ 32,819 $ 33,741
Deferred drydock expenses, net 9,445 5,381
Deferred financing costs, net 28,081 26,483
Intangible assets with finite lives, net 520 531
Other 4,173 2,771
Other assets, net $ 75,038 $ 68,907