Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Unrecognized tax benefits - beginning of year	$ 7.1	$ 5.5	$ 6.6
Gross increases - tax positions in prior periods	0.7	1.6	0.8
Gross increases - tax positions in the current period	0	0.2	0.1
Settlements with taxing authorities	(1.6)	(0.2)	0
Lapse of statute of limitations	(0.5)	0	(2.0)
Unrecognized tax benefits - end of year	$ 5.7	$ 7.1	$ 5.5