Share-Based Compensation (Expense Related to Non-vested Stock Awards) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 29, 2012		Jul. 01, 2011		Jun. 29, 2012		Jul. 01, 2011
Total pre-tax share-based compensation expense	$ 3.7		$ 3.0		$ 7.2		$ 5.7
Excess tax benefit on share-based compensation	0	[1]	0	[1]	0.1	[1],[2]	0.7	[1],[2]
Non-Qualified Stock Option Expense [Member]
Total pre-tax share-based compensation expense	1.5		1.2		2.9		2.3
Non-Vested Stock Awards Expense [Member]
Total pre-tax share-based compensation expense	$ 2.2		$ 1.8		$ 4.3		$ 3.4

[1] Cash inflows (outflows) recognized as financing activities in the condensed consolidated statements of cash flows.

[2] See Note 23 - Restatement of Condensed Consolidated Financial Statements