Income Taxes (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 27, 2014	Jun. 28, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Income Taxes [Abstract]
Effective tax rate (in hundredths)	33.00%		40.00%	30.00%	37.00%
Reduction for U.S. production activities	$ (1.0)			$ (3.5)	$ (3.9)
Increase (decrease) in valuation allowances		(4.8)	1.0	(5.7)	(0.4)
Provision for state income taxes, net of federal benefit	0.3		1.2	2.8	7.4
Effect of foreign adjustments			0.4	(0.5)	(1.1)
Valuation allowance release effect on diluted earnings per share (in dollars per share)		$ 0.08
Unrecognized tax benefits	2.8			2.8
Impairment of goodwill			$ 1.8		$ 1.8