Intangibles And Other Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Intangibles And Other Assets Net [Line Items]
Amortization expense of intangibles	$ 35.7	$ 26.5	$ 20.2
Amortization expense of deferred financing assets	3.9	2.7	1.5
Amortization of financing costs in 2009			1.6
Information Technology [Member]
Intangibles And Other Assets Net [Line Items]
Amortization expense of intangibles	$ 2.7	$ 2.2	$ 4.5