Goodwill and Intangible Assets - Goodwill Roll Forward (Details) $ in Thousands  | 
3 Months Ended | 
|---|---|
| 
 Mar. 31, 2023  
USD ($) 
 | |
| Goodwill [Roll Forward] | |
| Balance as of beginning of period | $ 248,837 | 
| Acquisitions | 4,743 | 
| Balance as of end of period | 253,580 | 
| Aviation | |
| Goodwill [Roll Forward] | |
| Balance as of beginning of period | 154,072 | 
| Acquisitions | 4,743 | 
| Balance as of end of period | 158,815 | 
| Fleet | |
| Goodwill [Roll Forward] | |
| Balance as of beginning of period | 63,190 | 
| Acquisitions | 0 | 
| Balance as of end of period | 63,190 | 
| Federal and Defense | |
| Goodwill [Roll Forward] | |
| Balance as of beginning of period | 31,575 | 
| Acquisitions | 0 | 
| Balance as of end of period | $ 31,575 | 
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
  | 
| X | ||||||||||
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
  | 
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available. 
  | 
| X | ||||||||||
- Details 
  | 
| X | ||||||||||
- Details 
  | 
| X | ||||||||||
- Details 
  |