Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Inventory [Line Items]
Total raw materials	$ 109,005	$ 105,289
Total inventories	147,191	147,857
Fluids systems
Inventory [Line Items]
Total raw materials	103,149	98,974
Industrial Solutions
Inventory [Line Items]
Total raw materials	5,856	6,315
Blended fluids systems components
Inventory [Line Items]
Finished goods	28,714	31,744
Finished goods - mats
Inventory [Line Items]
Finished goods	$ 9,472	$ 10,824