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Acquisition - Additional Information (Detail) |  | 6 Months Ended
--- | --- | ---
Mar. 26, 2018 USD ($) ft² T | Jun. 30, 2018 USD ($)
Business Acquisition [Line Items] |  |
Paid from cash on hand |  | $ 21,475,000
2018 Acquisition [Member] | BASF Mexicana, S.A. DE C.V. [Member] | Surfactants [Member] | Ecatepec, Mexico [Member] |  |
Business Acquisition [Line Items] |  |
Capacity of production facility expected to be acquired | T | 50,000 |
Warehouse space, laboratory and office space currently expected to be acquired | ft² | 124,000 |
Paid from cash on hand | $ 22,852,000 |
Intangible assets identified related to acquisition | $ 0 |

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