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

Flight Equipment Held For Operating Leases, Net (Narrative) (Details)

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Flight Equipment Held For Operating Leases, Net (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
years
Dec. 31, 2010
Dec. 31, 2009
Number of aircraft 251    
Number of operating leases 89    
Number of countries 46    
Prepayments on flight equipment (including related capitalized interest) $ 151,550 $ 468,933 $ 375,690
Maximum years until lease agreements expire 12    
A330 Wide-Body Aircraft [Member]
     
Number of aircraft   3  
A320 Aircraft [Member]
     
Number of aircraft   3  
Boeing 737-800 [Member]
     
Number of aircraft 12    
Purchase-Leaseback [Member] | Boeing 737-800 [Member]
     
Number of aircraft 31    
Capital Lease Expense [Member] | A330 Wide-Body Aircraft [Member]
     
Number of aircraft 5    
Capital Lease Expense [Member] | A320 Aircraft [Member]
     
Number of aircraft 7    
Capital Lease Expense [Member] | Boeing 737-800 [Member]
     
Number of aircraft 10    
Flight Equipment Held For Operating Leases [Member]
     
Number of aircraft 245    
Number of engines 7