Summary of Financial Statement Preparation and Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Property, Plant and Equipment

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

	June 30,		December 31,
	2021		2020
Flight equipment	$	3,116,838	$	2,856,142
Ground equipment	64,245		65,857
Leasehold improvements, facilities and office equipment	38,309		36,193
Aircraft modifications and projects in progress	246,856		231,451
	3,466,248		3,189,643
Accumulated depreciation	(1,368,992)		(1,249,867)
Property and equipment, net	$	2,097,256	$	1,939,776