Leases and Prepaid Maintenance Deposits (Tables)

12 Months Ended

Dec. 31, 2016

Leases [Abstract]

Schedule of future minimum rental payments for noncancellable operating leases

Future minimum lease payments under noncancellable operating leases with initial or remaining terms in excess of one year at December 31, 2016 were as follows:

	Operating Leases
	Aircraft and Spare Engine Leases		Property Facility Leases		Total Operating Leases
	(in thousands)
2017	$	218,484	$	39,189	$	257,673
2018	203,465		38,048		241,513
2019	184,566		30,451		215,017
2020	176,590		18,928		195,518
2021	166,967		8,969		175,936
2022 and thereafter	558,038		53,734		611,772
Total minimum lease payments	$	1,508,110	$	189,319	$	1,697,429