Balance and Transactions Between Company and Related Party (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company		$ 20.5	$ 20.9	$ 24.2
Sales by Company		0.0	0.0	0.0
Outstanding Accounts Receivable		0.7	0.5	0.5
Outstanding Accounts Payable		1.7	1.7	1.8
Administration & Management Oversight Services	[1]	2.4	2.3	2.3
ArmaKleen Company
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0	0.0
Sales by Company		1.2	1.0	1.3
Outstanding Accounts Receivable		0.8	0.7	0.6
Outstanding Accounts Payable		0.0	0.0	0.0
Administration & Management Oversight Services	[1]	2.0	2.0	2.0
Natronx Technologies LLC
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0	0.0
Sales by Company		0.0	0.8	2.1
Outstanding Accounts Receivable		0.0	0.0	0.1
Outstanding Accounts Payable		0.0	0.0	0.0
Administration & Management Oversight Services	[1]	$ 0.0	$ 0.4	$ 0.8

[1] Billed by Company and recorded as a reduction of selling, general and administrative expenses.