Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

The future minimum lease payments of the Company as of December 31, 2016 are scheduled below (in thousands):

	Facility Leases		Other Leases
2017	$	8,321	$	233
2018	7,237		167
2019	3,650		75
2020	1,895		50
2021	1,734		—
2022 and beyond	13,765		—
Total minimum lease payments	$	36,602	$	525

Schedules of Concentration of Risk, by Risk Factor

As of December 31, 2016, the flight crewmember employees of ABX and ATI and flight attendant employees of ATI were represented by the labor unions listed below:

Airline	Labor Agreement Unit	Percentage of the Company’s Employees
ABX	International Brotherhood of Teamsters	8.8%
ATI	Air Line Pilots Association	5.1%