Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Inventory [Line Items]
Raw materials	$ 133,024	$ 124,181
Total inventories	169,968	155,341
Fluids Systems
Inventory [Line Items]
Raw materials	128,267	119,242
Industrial Solutions
Inventory [Line Items]
Raw materials	4,757	4,939
Blended fluids systems components
Inventory [Line Items]
Finished goods	29,894	27,793
Finished goods - mats
Inventory [Line Items]
Finished goods	$ 7,050	$ 3,367

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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