XML 33 R19.htm IDEA: XBRL DOCUMENT v3.10.0.1
INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of inventories, net of reserves
   

September 30,

2018

    December 31,
2017
 
Chassis   $ 5,666     $ 7,525  
Raw materials     39,523       30,109  
Work in process     13,723       13,521  
Finished goods     25,192       17,412  
    $ 84,104     $ 68,567