Schedule II Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012		Jan. 02, 2011	Jan. 03, 2010
Movement in Valuation Allowances and Reserves [Roll Forward]
Amount of environmental reserves includes reversal		$ 2.3
Reserve for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	3.8	2.9			2.3
Charged to costs and expenses	0.7	0.7		1.4
Acquisitions	0.6	0.6		0
Deductions and other(a)	(0.4)	(0.4)	[1]	(0.8)
Balance at end of period	4.7	3.8		2.9	2.3
Environmental Reserves [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	3.2	5.2			3.0
Charged to costs and expenses	0.3	0.1		0.3
Acquisitions	0	0.6		2.4
Deductions and other(a)	(0.3)	(2.7)	[1]	(0.5)
Balance at end of period	$ 3.2	$ 3.2		$ 5.2	$ 3.0

[1] Environmental reserves in 2011, includes the reversal of $2.3 million in reserves determined to be no longer needed. The amounts for allowance for doubtful accounts primarily represents uncollectible accounts written off, net of recoveries.