Balance and Transactions Between Company (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company	$ 11.3		$ 10.1
Sales by Company	0		0
Outstanding Accounts Receivable	0.7		1.9
Outstanding Accounts Payable	2.8		1.9
Administration & Management Oversight Services	1.1	[1]	0.8	[1]
ArmaKleen Company
Related Party Transaction [Line Items]
Purchases by Company	0		0
Sales by Company	0.6		0.6
Outstanding Accounts Receivable	0.6		1.2
Outstanding Accounts Payable	0		0
Administration & Management Oversight Services	1.0	[1]	1.1	[1]
Natronx LLC
Related Party Transaction [Line Items]
Purchases by Company	0		0
Sales by Company	0.9		0.8
Outstanding Accounts Receivable	0.1		0.4
Outstanding Accounts Payable	0		0
Administration & Management Oversight Services	$ 0.5	[1]	$ 0.7	[1]

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