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

6 Months Ended

Jun. 30, 2015

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, 2015			December 31, 2014
Flight equipment	$	1,335,943		$	1,285,966
Ground equipment	33,735			33,677
Leasehold improvements, facilities and office equipment	25,152			25,180
Aircraft modifications and projects in progress	21,043			18,612
	1,415,873			1,363,435
Accumulated depreciation	(556,391		)	(516,167		)
Property and equipment, net	$	859,482		$	847,268