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Investment in finance and sales-type leases, net | 6 Months Ended
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Jun. 30, 2021
Flight Equipment, Net [Abstract] |
Investment in finance and sales-type leases, net | Investment in finance and sales-type leases, net Components of investment in finance and sales-type leases, net as of June 30, 2021 and December 31, 2020 were as follows:
| June 30, 2021 |  | December 31, 2020
Future minimum lease payments to be received | $ | 560,235 |  |  | $ | 608,950 |
Estimated residual values of leased flight equipment | 574,383 |  |  | 589,872 |
Less: Unearned income | (219,277) |  |  | (260,708) |
Allowance for credit losses (Note 18) | (56,188) |  |  | (59,663) |
| $ | 859,153 |  |  | $ | 878,451 |
During the three months ended June 30, 2021 and 2020, we recognized interest income from investment in finance and sales-type leases, net of $12.5 million and $13.6 million, respectively, included in basic lease rents. During the six months ended June 30, 2021 and 2020, we recognized interest income from net investment in finance and sales-type leases of $24.7 million and $27.3 million, respectively, included in basic lease rents.

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