Business Segmentation and Geographical Distribution - Net Sales from International Sources (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total net sales from international sources	$ 19.8	$ 20.0
Consumer Products segment
Segment Reporting Information [Line Items]
Total net sales from international sources	18.0	16.9
Ingredients segment
Segment Reporting Information [Line Items]
Total net sales from international sources	0.7	1.8
Analytical Reference Standards and Services segment
Segment Reporting Information [Line Items]
Total net sales from international sources	$ 1.1	$ 1.3