Employee Benefit And Retirement Plans (Fair Value Of Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 30, 2011	Dec. 31, 2010	Jan. 01, 2010
Defined Benefit Plan Disclosure [Line Items]
Total assets	$ 9.8	$ 10.1	$ 9.5
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	6.2	5.3
Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	3.6	4.8
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	3.6	2.8
Equity Securities [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	3.6	2.8
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	2.6	2.5
Fixed Income Securities [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	2.6	2.5
Guaranteed Income Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	3.6	4.8
Guaranteed Income Fund [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets	$ 3.6	$ 4.8