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, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Rubber
Segment Reporting Information [Line Items]
Concentration risk percentage	63.00%	67.00%	61.00%	66.00%
Specialty
Segment Reporting Information [Line Items]
Concentration risk percentage	37.00%	33.00%	39.00%	34.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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