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Investment in finance leases, net - Components of net investment (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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Flight Equipment, Net [Abstract] |  |
Future minimum lease payments to be received, net | $ 1,254,215 | $ 1,299,724
Estimated residual values of leased flight equipment | 647,199 | 630,538
Less: Unearned income | (516,549) | (551,165)
Less: Allowance for credit losses (Note 21) | (11,769) | (23,025)
Net investment in finance leases | $ 1,373,096 | $ 1,356,072

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- Definition Amount, after allowance for credit loss, of net investment in sales-type and direct financing leases. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 1 -SubTopic 30 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479016/842-30-45-1 + Details
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