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Flight equipment held for operating leases, net (Tables)
 12 Months Ended
Dec. 31, 2018
Property Subject to or Available for Operating Lease, Net [Abstract]  
Schedule of movements in flight equipment held for operating leases
Movements in flight equipment held for operating leases during the years ended December 31, 2018 and 2017 were as follows:
 
Year Ended December 31,
 
2018
 
2017
Net book value at beginning of period
$
32,396,827

 
$
31,501,973

Additions
5,877,691

 
5,276,715

Depreciation
(1,649,710
)
 
(1,690,753
)
Disposals and transfers to held for sale
(1,417,825
)
 
(2,281,401
)
Transfers to net investment in finance and sales-type leases/inventory
(115,330
)
 
(352,714
)
Impairment (Note 23)
(39,318
)
 
(54,331
)
Other
—

 
(2,662
)
Net book value at end of period
$
35,052,335

 
$
32,396,827

 
 
 
 
Accumulated depreciation as of December 31, 2018 and 2017, respectively
$
(6,850,869
)
 
$
(6,067,084
)