| **Segment Data - Narrative (Details) - USD ($)**            | 3 Months Ended |
|-------------------------------------------------------------|----------------|
||
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    | $ 176,438,000  | $ 141,172,000 |
| Total operating income                                      | 967,000        | 544,000 |
| Affiliated Entity                                           |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    | 14,000,000     | 7,000,000 |
| Capital employed                                            | 50,000,000     |   |
| Net working capital                                         | 28,000,000     |   |
| Fluids Systems                                              |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    | 141,014,000    | 87,849,000 |
| Industrial Solutions                                        |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    | 35,424,000     | 53,323,000 |
| Industrial Solutions | Industrial Blending Member           |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    |           | 5,000,000 |
| Total operating income                                      | 900,000        |   |
| Combined assets                                             | 19,000,000     |   |
| Impairment, long-lived asset, held-for-use                  | 0              |   |
| Industrial Solutions | Industrial Blending Member | Minimum |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Impairment of long-lived assets                             | 4,000,000      |   |
| Industrial Solutions | Industrial Blending Member | Maximum |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Impairment of long-lived assets                             | 8,000,000      |   |
| Operating segments | Fluids Systems                         |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    | 141,014,000    | 87,849,000 |
| Total operating income                                      | 3,374,000      | (6,767,000) |
| Operating segments | Industrial Solutions                   |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Revenues                                                    | 35,424,000     | 53,323,000 |
| Total operating income                                      | 5,472,000      | 13,130,000 |
| Corporate office                                            |           |   |
| **Segment Reporting Information [Line Items]**              |           |   |
| Total operating income                                      | $ (7,879,000)  | $ (5,819,000) |

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| - Definition
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).
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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.
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The net result for the period of deducting operating expenses from operating revenues.
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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.
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