Balance and Transactions Between Company (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012		Jul. 01, 2011
Armand Products Company
Related Party Transaction [Line Items]
Purchases by Company	$ 10.4		$ 7.6
Sales by Company	0		0
Outstanding Accounts Receivable	0.9		0.3
Outstanding Accounts Payable	2.5		2.0
Administration & Management Oversight Services	0.8	[1]	0.8	[1]
Armakleen Company
Related Party Transaction [Line Items]
Purchases by Company	0		0
Sales by Company	2.5		2.8
Outstanding Accounts Receivable	0.1		0.9
Outstanding Accounts Payable	0		0
Administration & Management Oversight Services	1.1	[1]	1.3	[1]
Natronx LLC
Related Party Transaction [Line Items]
Purchases by Company	0		0
Sales by Company	1.4		0
Outstanding Accounts Receivable	0.2		0
Outstanding Accounts Payable	0		0
Administration & Management Oversight Services	$ 0.5	[1]	$ 0	[1]

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