Balance and Transactions Between Company and Related Party (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company		$ 15.6	$ 16.2
Sales by Company		0.0	0.0
Outstanding Accounts Receivable		0.5	0.6
Outstanding Accounts Payable		1.5	1.7
Administration & Management Oversight Services	[1]	1.8	1.8
ArmaKleen Company
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0
Sales by Company		0.9	0.9
Outstanding Accounts Receivable		0.7	0.7
Outstanding Accounts Payable		0.0	0.0
Administration & Management Oversight Services	[1]	1.5	1.6
Natronx Technologies LLC
Related Party Transaction [Line Items]
Purchases by Company		0.0	0.0
Sales by Company		0.0	0.8
Outstanding Accounts Receivable		0.0	0.0
Outstanding Accounts Payable		0.0	0.0
Administration & Management Oversight Services	[1]	$ 0.0	$ 0.4

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