Financial Instruments and Derivatives Instruments (Details) (USD $) In Millions	Oct. 02, 2011	Dec. 31, 2010	Oct. 03, 2010
Liabilities
Contingent consideration		$ 1.9
Fair value measured on a recurring basis | Total
Assets
Plan asset for deferred compensation	3.8	3.7	3.4
Total assets	3.8	3.7	3.4
Liabilities
Contingent consideration	2.2	1.9	1.9
Plan liability for deferred compensation	3.8	3.7	3.4
Total liabilities	6.0	5.6	5.3
Fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Plan asset for deferred compensation	3.8	3.7	3.4
Total assets	3.8	3.7	3.4
Liabilities
Plan liability for deferred compensation	3.8	3.7	3.4
Total liabilities	3.8	3.7	3.4
Fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Liabilities
Contingent consideration	2.2	1.9	1.9
Total liabilities	$ 2.2	$ 1.9	$ 1.9