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Investment in finance leases, net - Schedule of Components of the Net Investment in Finance and Sales-type Leases (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Flight Equipment, Net [Abstract] |  |
Future minimum lease payments to be received, net | $ 1,189,932 | $ 1,156,693
Estimated residual values of leased flight equipment | 516,550 | 597,184
Less: Unearned income | (487,729) | (490,502)
Less: Allowance for credit losses (Note 27) | (10,168) | (8,924)
Investment in finance leases, net | $ 1,208,585 | $ 1,254,451

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