The future minimum lease payments under all noncancelable leases at December 31, 2016, principally for trailing equipment, are shown in the following table (in thousands):


	Capital Leases		Operating Leases
2017	$	47,860	$	634
2018		37,654		424
2019		29,431		123
2020		22,054		53
2021		7,572		53
Thereafter		—		264

Total future minimum lease payments		144,571	$	1,551

Less amount representing interest (2.0% to 3.1%)		6,267

Present value of minimum lease payments	$	138,304