Balance and Transactions Between Company and Related Party (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company		$ 2.9	$ 3.3
Sales by Company		0.0	0.0
Outstanding Accounts Receivable		0.5	0.4
Outstanding Accounts Payable		1.0	1.2
Administration & Management Oversight Services	[1]	0.5	0.5
ArmaKleen Company
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0
Sales by Company		0.2	0.3
Outstanding Accounts Receivable		0.8	0.7
Outstanding Accounts Payable		0.0	0.0
Administration & Management Oversight Services	[1]	$ 0.5	$ 0.5

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