Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

As of December 31, 2018, the cash flows of operating leases over the next five years were as follows (in thousands):

	Operating Leases
2019	$	16,674
2020	14,586
2021	11,875
2022	5,906
2023	3,813
2024 and beyond	2,001
Total minimum lease payments	$	54,855

As of September 30, 2019, the maturities of operating leases liabilities are as follows (in thousands):

	Operating Leases
Remaining 2019	$	4,668
2020	15,706
2021	12,475
2022	8,883
2023	7,563
2024 and beyond	10,053
Total	59,348
Less: amount representing interest	(6,013		)
Present value of future minimum lease payments	53,335
Less: current obligations under leases	14,794
Long-term lease obligations	$	38,541

Schedules of Concentration of Risk, by Risk Factor

As of September 30, 2019, the flight crewmember employees of ABX, ATI and OAI and flight attendant employees of ATI and OAI were represented by the labor unions listed below:

Airline	Labor Agreement Unit	Percentage of the Company’s Employees
ABX	International Brotherhood of Teamsters	5.7%
ATI	Air Line Pilots Association	8.2%
OAI	International Brotherhood of Teamsters	7.0%
ATI	Association of Flight Attendants	0.9%
OAI	Association of Flight Attendants	7.2%