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Net investment in finance and sales-type leases (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Flight Equipment, Net [Abstract] |  |  |  |
Finance and sales-type leases, interest income | $ 15.8 |  | $ 31.3 |
Finance and sales-type leases, interest income |  | $ 16.6 |  | $ 33.2

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- Definition Capital Leases, Income Statement, Interest Income + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount of interest income from net investment in sales-type and direct financing leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919372-209981 + Details
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