XML 38 R25.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consist of the following:
September 30,December 31,
($ in thousands)20202019
Proppants$8,336 $14,013 
Chemicals5,639 10,076 
Maintenance parts63,014 64,458 
$76,989 $88,547