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Restructuring	12 Months Ended
	Dec. 31, 2020
Restructuring Charges [Abstract]
Restructuring	Note 5.     Restructuring During 2020, the Company recorded a charge of $21.3 million for the restructuring of its Octane Additives segment in line with the end of the manufacturing and sale of TEL for use in motor gasoline. As a result, the Octane Additives segment ceased trading and is no longer a reporting segment from July 1, 2020. Production of TEL will continue for sales to the aviation market (“AvTel”), as reported within our Fuel Specialties segment. The restructuring charge comprises the future committed costs of environmental monitoring of $2.0 million, remediation of facilities of $7.5 million, contract termination costs of $7.2 million, impairment of tangible assets of $2.0 million and costs of redundancy due to the down-sizing of the TEL operations of $2.6 million. During the year ended December 31, 2020 the utilization and the unwinding of the discounting was not material.

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The entire disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.

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