Balance and Transactions Between Company and Related Party (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company		$ 15.6	$ 20.5	$ 20.9
Sales by Company		0.0	0.0	0.0
Outstanding Accounts Receivable		0.8	0.7	0.5
Outstanding Accounts Payable		1.0	1.7	1.7
Administration & Management Oversight Services	[1]	2.5	2.4	2.3
ArmaKleen Company
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0	0.0
Sales by Company		1.2	1.2	1.0
Outstanding Accounts Receivable		0.7	0.8	0.7
Outstanding Accounts Payable		0.0	0.0	0.0
Administration & Management Oversight Services	[1]	$ 2.1	$ 2.0	$ 2.0

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