Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2015

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, 2015			December 31, 2014
Flight equipment	$	1,325,289		$	1,285,966
Ground equipment	33,660			33,677
Leasehold improvements, facilities and office equipment	25,148			25,180
Aircraft modifications and projects in progress	14,083			18,612
	1,398,180			1,363,435
Accumulated depreciation	(540,730		)	(516,167		)
Property and equipment, net	$	857,450		$	847,268