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Operating Lease Commitments
12 Months Ended
Dec. 31, 2017
Operating Lease Commitments [Abstract]  
Operating Lease Commitments



6. Operating Lease Commitments



The Company leases equipment, vehicles and buildings from third parties under operating lease agreements.  For the years ended December 31, 2017, 2016 and 2015, lease expense totaled $6,261,  $5,290 and $5,532, respectively.



Future minimum operating lease commitments as of December 31, 2017 were as follows:





 

 

Year ended December 31

 

 

2018

$

5,560 

2019

 

4,555 

2020

 

3,058 

2021

 

2,622 

2022

 

1,780 

Thereafter

 

5,954 

Total

$

23,529