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

Intangible Assets (Schedule Of Amortizable Intangible Assets) (Details)

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Intangible Assets (Schedule Of Amortizable Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Finite-Lived Intangible Assets [Line Items]      
Gross $ 67,882 $ 99,273  
Accumulated amortization (38,204) (40,636)  
Net 29,677 58,637 31,399
Lease Premiums [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Gross 67,882 73,673  
Accumulated amortization (38,204) (27,448)  
Net 29,677 46,225  
Customer Relationships-Parts [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Gross   19,800  
Accumulated amortization   (9,229)  
Net   10,571  
Customer Relationships-Engines [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Gross   3,600  
Accumulated amortization   (2,516)  
Net   1,084  
FAA Certificate At AeroTurbine [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Gross   1,100  
Accumulated amortization   (343)  
Net   757  
Non-Compete Agreement [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Gross   1,100  
Accumulated amortization   $ (1,100)