Business Segments - Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Segment Reporting Information [Line Items]
Revenues	$ 205,223	$ 169,761	$ 393,810	$ 330,081
Operating income (loss)	20,637	10,535	37,415	22,552
Corporate/unallocated expenses(a)
Segment Reporting Information [Line Items]
Operating income (loss)	(3,000)	(1,281)	(7,785)	(3,267)
Aviation
Segment Reporting Information [Line Items]
Revenues	124,729	105,019	237,964	198,309
Aviation | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	15,783	6,450	31,447	14,072
Fleet
Segment Reporting Information [Line Items]
Revenues	80,494	64,742	155,846	131,772
Fleet | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 7,854	$ 5,366	$ 13,753	$ 11,747