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Financial Information by Segment -Schedule of the Relative Size of Revenue Recognized in each Reportable Segment (Details) - Revenue generated - Product Concentration Risk | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Rubber |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Concentration risk percentage | 62.00% | 63.00% | 61.00% | 61.00%
Specialty |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Concentration risk percentage | 38.00% | 37.00% | 39.00% | 39.00%

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