Income Taxes (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Income Taxes [Abstract]
Effective tax rate (in hundredths)	25.00%	36.00%	29.00%	36.00%
Reduction for U.S. production activities	$ (1.4)	$ (2.6)
Decrease in valuation allowances	(4.8)	(5.7)
Provision for state income taxes, net of federal benefit	1.2	2.5
Reduction for effect of foreign adjustments		(0.3)
Amount per diluted share (in dollars per share)	$ 0.08
Unrecognized tax benefits	$ 2.8		$ 2.8

Amount per diluted share in terms of a valuation allowance for the second quarter of 2014.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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