Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018
Income Taxes [Line Items]
Effective tax rate	28.90%	38.80%
Gross unrecognized tax benefit	$ 15.4		$ 15.1
Unrecognized tax benefits that would impact effective tax rate, if recognized	15.1
Accrued interest and penalties related to uncertain tax positions	5.4		$ 5.5
Decrease in Unrecognized Tax Benefits Reasonably Possible, Amount of Unrecorded Benefit	$ 3.3

[Line Items] for tax rate [Table]

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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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 unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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