Earnings (Loss) Per Common Share (Reconciliation Of The Numerator And Denominator Of Earnings (Loss) Per Common Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2012		Apr. 01, 2011
Earnings Per Share [Abstract]
Net income for basic EPS computation	$ 24.9	[1]	$ 38.2	[1]
Weighted average shares outstanding for basic EPS computation	49.7	[2]	52.1	[2]
Earnings per common share-basic	$ 0.50	[3]	$ 0.73	[3]
Net income attributable to Company common shareholders	24.9	[1]	38.2	[1]
Add: preferred stock dividends, if applicable	0.1		0.1
Net income for diluted EPS computation	$ 25.0	[1]	$ 38.3	[1]
Weighted average shares outstanding including nonvested shares	49.7	[2]	52.1	[2]
Dilutive effect of convertible notes	0		1.1
Dilutive effect of stock options and restricted stock units	1.0		0.9
Dilutive effect of assumed conversion of preferred stock	0.4		0.4
Weighted average shares outstanding for diluted EPS computation	51.1	[2]	54.5	[2]
Earnings per common share-assuming dilution	$ 0.49		$ 0.70

[1] Numerator

[2] Denominator

[3] Under the two-class method, Earnings per share – basic reflects undistributed Earnings per share for both common stock and unvested share-based payment awards (restricted stock).