Long-Term Debt and Capital Leases (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 30, 2012	Oct. 22, 2012
Summary of Long-Term Debt
Total long-term debt	$ 683.2	$ 543.4
Uncommitted credit line facility amount outstanding	0	0
4.04% Notes due September 2015 [Member]
Summary of Long-Term Debt
Total long-term debt	75.0	75.0
Stated interest rate	4.04%
4.74% Notes due September 2017 [Member]
Summary of Long-Term Debt
Total long-term debt	100.0	100.0
Stated interest rate	4.74%
5.30% Notes due September 2020 [Member]
Summary of Long-Term Debt
Total long-term debt	75.0	75.0
Stated interest rate	5.30%
Term Loans due October 2015, weighted average rate of 1.59% [Member]
Summary of Long-Term Debt
Total long-term debt	200.0	200.0	200.0
Weighted average rate under credit facility	1.59%
Other debt at various rates due through 2018 (excluding the current portion) [Member]
Summary of Long-Term Debt
Total long-term debt	13.8	14.3
$750.0 million revolving credit facility, weighted average rate of 2.34% at March 31, 2013 and 2.82% at December 30, 2012 [Member]
Summary of Long-Term Debt
Total long-term debt	$ 219.4	$ 79.1
Weighted average rate under credit facility	2.34%	2.82%