Long-Term Debt and Capital Leases (Details) (USD $) In Millions, unless otherwise specified	Jul. 03, 2011	Jan. 02, 2011
Summary of Long-term debt
Total Long-Term Debt	$ 310.0	$ 250.0
4.04% Senior Notes due September 2015 [Member]
Summary of Long-term debt
Total Long-Term Debt	75.0	75.0
Interest Rate, Stated Percentage	4.04%
4.74% Senior Notes due September 2017 [Member]
Summary of Long-term debt
Total Long-Term Debt	100.0	100.0
Interest Rate, Stated Percentage	4.74%
5.30% Senior Notes due September 2020 [Member]
Summary of Long-term debt
Total Long-Term Debt	75.0	75.0
Interest Rate, Stated Percentage	5.30%
Revolving Credit Facility [Member]
Summary of Long-term debt
Total Long-Term Debt	$ 60.0	$ 0
Weighted Average Interest Rate	1.84%