Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

v3.7.0.1
Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Inventories    
Finished goods and work-in-process $ 71,035 $ 44,047
Raw material and supplies 27,325 26,824
Inventories 98,360 70,871
Inventories - truck chassis floor plan $ 6,938 $ 3,939