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Business Segments - Segment Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) segment | Sep. 30, 2023 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Segment Reporting Information [Line Items] |  |  |  |
Revenues: | $ 273,613 | $ 231,353 | $ 781,111 | $ 625,163
Operating income: | 23,698 | 25,264 | 54,004 | 62,677
Corporate/unallocated expenses(a) |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income: | (4,208) | (4,218) | (29,509) | (12,004)
Aviation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues: | 203,642 | 152,355 | 558,853 | 390,319
Aviation | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income: | 25,435 | 20,951 | 72,214 | 52,397
Fleet |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues: | 69,971 | 78,998 | 222,258 | 234,844
Fleet | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income: | $ 2,471 | $ 8,531 | $ 11,299 | $ 22,284

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