Inventories (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following:

(In thousands)	March 31, 2020		December 31, 2019
Raw materials:
Fluids systems	$	124,623	$	141,314
Mats and integrated services	4,451		5,049
Total raw materials	129,074		146,363
Blended fluids systems components	40,892		39,542
Finished goods - mats	18,013		10,992
Total inventories	$	187,979	$	196,897