Income Taxes Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012
Federal and State Net Operating Loss Carry Forwards [Member]
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount	$ (56.5)
State Net Operating Loss and Federal Tax Credit Carry Forwards [Member]
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount	(8.8)
Valuation Allowance, Amount	$ 12.7