| **Inventories (Tables)**            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                  |
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| **Inventory Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                             |
| Schedule of Inventories             | Inventories consisted of the following at December 31: (In thousands)20232022Raw materials:  Fluids Systems$104,227 $110,623 Industrial Solutions4,232 3,966 Total raw materials108,459 114,589 Blended fluids systems components18,246 29,244 Finished goods — mats14,374 5,738 Total inventories$141,079 $149,571  |

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| - Definition
Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.
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