Debt and Other Obligations (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of long-term debt instruments

Long-term debt is comprised of the following:

	As of December 31,
	2014		2013		2014		2013
	(in millions)				(weighted-average interest rates)
Senior Term Loans due through 2026	$	132.0	$	—	4.26	%	N/A
Junior Term Loans due through 2021	16.0		—		6.94	%	N/A
Long-term debt	$	148.0	$	—
Less current maturities	10.4		—
Less unamortized discount, net	1.8		—
Total	$	135.8	$	—

Schedule of maturities of long-term debt

At December 31, 2014, long-term debt principal payments for the next five years and thereafter are as follows:

	December 31, 2014
	(in millions)
2015	$	10.4
2016	10.9
2017	11.6
2018	12.0
2019	12.6
2020 and thereafter	90.5
Total debt principal payments	$	148.0

Schedule of interest expense on long-term debt

Interest expense related to debt consists of the following:

	Year Ended December 31,
	2014		2013
	(in thousands)
Senior Term Loans	$	738	$	—
Junior Term Loans	145		—
Commitment fees	685		—
Amortization of deferred financing costs	9		—
Total	$	1,577	$	—

Schedule of future minimum lease payments for capital leases

Aggregate annual principal maturities of capital leases as of December 31, 2014 and December 31, 2013 are as follows:

	As of December 31,
	2014		2013
	(in thousands)
2015	$	1,289	$	1,083
2016	1,002		966
2017	39		—
2018	42		—
2019	11		—
2020 and thereafter	—		—
Total principal maturities	$	2,383	$	2,049

Future minimum lease payments under capital leases and noncancellable operating leases with initial or remaining terms in excess of one year at December 31, 2014 were as follows:

			Operating Leases
	Capital Leases		Aircraft and Spare Engine Leases		Property Facility Leases		Total Operating Leases
	(in thousands)
2015	$	1,444	$	214,337	$	29,647	$	243,984
2016	1,044		212,512		25,239		237,751
2017	44		196,010		25,613		221,623
2018	44		172,323		25,759		198,082
2019	12		144,211		23,606		167,817
2020 and thereafter	—		592,409		71,578		663,987
Total minimum lease payments	$	2,588	$	1,531,802	$	201,442	$	1,733,244
Less amount representing interest	205
Present value of minimum lease payments	2,383
Less current portion	1,289
Long-term portion	1,094