Segment and Revenue Information - Revenue from External Customers from Other Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total customer revenues	$ 2,070,611	$ 2,045,469	$ 1,734,282
External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	316,991	324,048	275,881
Aircraft maintenance, modifications and part sales | External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	147,188	145,998	127,378
Ground services | External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	95,505	107,080	99,133
Other, including aviation fuel sales | External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	$ 74,298	$ 70,970	$ 49,370