XML 37 R23.htm IDEA: XBRL DOCUMENT v3.19.2
Inventories (Tables)
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories consisted of the following:
(In thousands)
June 30, 2019
 
December 31, 2018
Raw materials:
 
 
 
Fluids systems
$
144,699

 
$
148,737

Mats and integrated services
6,380

 
1,485

Total raw materials
151,079

 
150,222

Blended fluids systems components
34,515

 
38,088

Finished goods - mats
7,870

 
8,586

Total inventories
$
193,464

 
$
196,896