Segments - Additional Information (Details) - Segment	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Number of reportable segments	3
Armand Products Company
Segment Reporting Information [Line Items]
Percentage of ownership interest	50.00%	50.00%
ArmaKleen Company
Segment Reporting Information [Line Items]
Percentage of ownership interest	50.00%	50.00%
Natronx Technologies LLC
Segment Reporting Information [Line Items]
Percentage of ownership interest	33.33%	33.33%