Annual report pursuant to Section 13 and 15(d)

Operating Leases

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Operating Leases
12 Months Ended
Dec. 31, 2017
Operating Leases [Abstract]  
Leases of Lessee Disclosure [Text Block]
Operating Leases

The Company leases certain facilities under noncancellable operating leases that expire in various years through 2025. Certain leases may be renewed for periods varying from one to ten years.  The Company has entered into or assumed through acquisition several operating leases for tractors, straight trucks and trailers with original lease terms between three and five years.  These leases expire in various years through 2023 and may not be renewed beyond the original term. 

Sublease rental income, was $1,923, $1,517 and $1,611 in 2017, 2016 and 2015, respectively.  In 2018, the Company expects to receive aggregate future minimum rental payments under noncancellable subleases of approximately $1,206.  Noncancellable subleases expire between 2018 and 2021.
 
Future minimum rental payments under noncancellable operating leases with initial or remaining terms in excess of one year consisted of the following at December 31, 2017:
2018
$
42,051

2019
34,693

2020
22,393

2021
11,282

2022
4,948

Thereafter
2,281

Total
$
117,648