v3.19.3
Inventories
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories
(4) Inventories

Inventories consisted of the following:
(in thousands)
September 30, 2019
 
December 31, 2018
Finished goods
$
19,919

 
$
25,136

Raw materials
362

 
439

Parts, supplies and other
36,583

 
37,979

Total inventories
$
56,864

 
$
63,554