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Inventories (Tables)
6 Months Ended
Jun. 30, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventories Inventories consisted of the following:
(In thousands)June 30, 2022December 31, 2021
Raw materials:  
Fluids Systems$142,012 $119,242 
Industrial Solutions5,124 4,939 
Total raw materials147,136 124,181 
Blended fluids systems components35,781 27,793 
Finished goods - mats7,254 3,367 
Total inventories$190,171 $155,341