XML 55 R45.htm IDEA: XBRL DOCUMENT v3.21.2
Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Inventories    
Finished goods $ 49,354 $ 39,496
Work-in-process 8,653 8,253
Raw material and supplies 42,127 31,733
Inventories 100,134 79,482
Inventories - truck chassis floor plan $ 7,916 $ 8,146