Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 30, 2012		Sep. 30, 2012		Jul. 01, 2012		Apr. 01, 2012		Jan. 01, 2012		Oct. 02, 2011		Jul. 03, 2011		Apr. 03, 2011		Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 567.4	[1]	$ 547.4	[1]	$ 518.5	[1]	$ 494.0	[1]	$ 474.5	[2]	$ 496.4	[2]	$ 502.9	[2]	$ 468.1	[2]	$ 2,127.3	$ 1,941.9	$ 1,644.2
Long-lived assets	1,661.6								1,223.3								1,661.6	1,223.3	909.8
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales																	1,699.5	1,623.0	1,551.2
Long-lived assets	1,068.0								802.7								1,068.0	802.7	779.5
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales																	224.4	165.0	0
Long-lived assets	393.4								282.9								393.4	282.9	0
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales																	203.4	153.9	93.0
Long-lived assets	$ 200.2								$ 137.7								$ 200.2	$ 137.7	$ 130.3

[1] Fiscal year 2012 was a 52-week year, each quarter contained 13 weeks.

[2] Fiscal year 2011 was a 52-week year, each quarter contained 13 weeks.