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Goodwill and Intangible Assets - Changes in Goodwill by Operating Segment (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Goodwill [Roll Forward] |  |  |
Beginning balance | $ 248,753,000 | $ 238,126,000 |
Goodwill acquired |  | 10,627,000 |
Adjustments to goodwill | 84,000 |  |
Ending balance | 248,837,000 | 248,753,000 | $ 238,126,000
Goodwill acquired | 0 | 0 |
Fleet |  |  |
Goodwill [Roll Forward] |  |  |
Beginning balance | 63,190,000 | 63,190,000 |
Goodwill acquired |  | 0 |
Adjustments to goodwill | 0 |  |
Ending balance | 63,190,000 | 63,190,000 | 63,190,000
Federal and Defense |  |  |
Goodwill [Roll Forward] |  |  |
Beginning balance | 31,491,000 | 30,883,000 |
Goodwill acquired |  | 608,000 |
Adjustments to goodwill | 84,000 |  |
Ending balance | 31,575,000 | 31,491,000 | 30,883,000
Aviation |  |  |
Goodwill [Roll Forward] |  |  |
Beginning balance | 154,072,000 | 144,053,000 |
Goodwill acquired |  | 10,019,000 |
Adjustments to goodwill | 0 |  |
Ending balance | $ 154,072,000 | $ 154,072,000 | 144,053,000
Goodwill acquired |  |  | $ 30,900,000

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