Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Depreciable lives are summarized as follows:

Boeing 777, 767 and 757 aircraft, Airbus A321 aircraft and flight equipment	7 to 18 years
Ground equipment	2 to 10 years
Leasehold improvements, facilities and office equipment	3 to 25 years

Property and equipment, to be held and used, is summarized as follows (in thousands):

	December 31, 2023		December 31, 2022
Flight equipment	$	3,865,049	$	3,506,134
Ground equipment	72,463		70,092
Leasehold improvements, facilities and office equipment	42,120		40,183
Aircraft modifications and projects in progress	638,631		445,633
	4,618,263		4,062,042
Accumulated depreciation	(1,797,494)		(1,659,634)
Property and equipment, net	$	2,820,769	$	2,402,408