Balance and Transactions Between Company and Related Party (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company		$ 14.2	$ 14.3	$ 15.6
Sales by Company		0.0	0.0	0.0
Outstanding Accounts Receivable		0.7	0.6	0.8
Outstanding Accounts Payable		1.4	1.6	1.0
Administration & Management Oversight Services	[1]	2.1	2.7	2.5
ArmaKleen Company
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0	0.0
Sales by Company		1.1	1.1	1.2
Outstanding Accounts Receivable		0.5	0.8	0.7
Outstanding Accounts Payable		0.0	0.0	0.0
Administration & Management Oversight Services	[1]	$ 2.2	$ 2.1	$ 2.1

[1] Billed by Company and recorded as a reduction of SG&A expenses.