Useful Lives (Details) (USD $) In Millions, unless otherwise specified			11 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2011 Successor Selling, general and administrative expenses	Dec. 29, 2012 Successor Selling, general and administrative expenses	Jan. 28, 2011 Predecessor Selling, general and administrative expenses	Jan. 01, 2011 Predecessor Selling, general and administrative expenses	Dec. 29, 2012 Technology	Dec. 29, 2012 Customer relationships	Dec. 29, 2012 Other intangibles, principally patents	Dec. 29, 2012 Building and improvements Minimum	Dec. 29, 2012 Building and improvements Maximum	Dec. 29, 2012 Machinery and equipment Minimum	Dec. 29, 2012 Machinery and equipment Maximum	Dec. 29, 2012 Other Minimum	Dec. 29, 2012 Other Maximum
Property, Plant and Equipment [Line Items]
Allowance for doubtful accounts eceivable	$ 1.2	$ 1.1
Property, plant and equipment useful life										5 years	31 years	2 years	15 years	2 years	15 years
Finite-lived intangible asset useful life							10 years	10 years	6 years
Shipping and handling costs			30.7	33.8	2.6	31.7
Research and development expense			$ 12.4	$ 12.5	$ 1.0	$ 11.6