Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

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

	March 31, 2019			December 31, 2018
Flight equipment	$	2,375,190		$	2,340,840
Ground equipment	59,803			57,455
Leasehold improvements, facilities and office equipment	29,365			28,745
Aircraft modifications and projects in progress	108,083			74,449
	2,572,441			2,501,489
Accumulated depreciation	(1,002,601		)	(946,484		)
Property and equipment, net	$	1,569,840		$	1,555,005