Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Maintenance Rights Intangible And Lease Premium, Net (Schedule Of Maintenance Rights Intangible And Lease Premium) (Details)

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Maintenance Rights Intangible And Lease Premium, Net (Schedule Of Maintenance Rights Intangible And Lease Premium) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Maintenance Rights Intangible And Lease Premium, Net [Abstract]    
Maintenance rights intangible $ 3,068,318 $ 3,812,259
Lease premium 70,727 93,767
Maintenance Rights Intangible And Lease Premium, Net $ 3,139,045 $ 3,906,026