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Net Investment In Finance And Sales-type Leases | 12 Months Ended
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Dec. 31, 2015
Net Investment In Finance And Sales-type Leases [Abstract] |
Net Investment In Finance And Sales-type Leases | 7. Net investment in finance and sales-type leases Components of net investment in finance and sales-type leases as of December 31, 2015 and 2014 were as follows:
| As of December 31,
| 2015 |  | 2014
Future minimum lease payments to be received | $ | 533,879 |  | $ | 409,282
Estimated residual values of leased flight equipment (unguaranteed) |  | 164,123 |  |  | 98,994
Less: Unearned income |  | (228,804) |  |  | (161,185)
| $ | 469,198 |  | $ | 347,091
Less: Allowance for credit losses |  | — |  |  | —
| $ | 469,198 |  | $ | 347,091
As of December 31, 2015, future minimum lease payments to be received on finance and s ales-type leases were as follows:
|  | Future minimum lease payments to be received
2016 | $ | 93,726
2017 |  | 85,143
2018 |  | 83,656
2019 |  | 75,255
2020 |  | 60,865
Thereafter |  | 135,234
| $ | 533,879

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