Leases, Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2019

Summary of related terms and discount rates

	September 30, 2019
Weighted-average remaining lease term
Operating leases		6.75 years
Weighted-average discount rate
Operating leases		6.4%

Summary of lease costs

	For the three months ended September 30,
	2019		2018
Operating lease cost	$	25,173	$	42,286
Variable and short-term lease cost		1,343		1,184
Sublease income		(357)		—
Total lease cost	$	26,159	$	43,470

	For the nine months ended September 30,
	2019		2018
Operating lease cost	$	80,041	$	140,544
Variable and short-term lease cost		4,164		3,996
Sublease income		(357)		—
Total lease cost	$	83,848	$	144,540

Schedule of future minimum rental payments for operating leases

October 2019 through December 2019	$	17,603
2020		91,892
2021		80,540
2022		70,900
2023		65,521
Thereafter		103,819
	$	430,275

Summary of commitments and obligations

The following table summarizes the Company’s commitments and obligations as noted for each of the next five years and thereafter (in thousands):

	Total		Oct - Dec 2019		2020		2021		2022		2023		Thereafter
Operating lease payments for aircraft and facility obligations	$	430,275	$	17,603	$	91,892	$	80,540	$	70,900	$	65,521	$	103,819
Firm aircraft and spare engine commitments		365,794		167,037		187,757		11,000		—		—		—
Interest commitments (1)		582,997		31,628		116,550		101,468		87,294		71,252		174,805
Principal maturities on long-term debt		3,008,588		91,192		361,131		344,937		358,586		367,322		1,485,420
Total commitments and obligations	$	4,387,654	$	307,460	$	757,330	$	537,945	$	516,780	$	504,095	$	1,764,044

(1) At September 30, 2019, the Company had variable rate notes representing only 0.1% of its total long-term debt.

Previously reported

Schedule of future minimum rental payments for operating leases

The following table summarizes future minimum rental payments required under operating leases that have non-cancelable lease terms in excess of one year as of December 31, 2018 (in thousands):

2019	$	87,256
2020		101,741
2021		90,787
2022		72,593
2023		65,749
Thereafter		59,820
	$	477,946