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Income Taxes - Summarizes Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Beginning balance	$ 7.9	$ 9.3
Increases related to current year tax positions	1.6	0.8
Decreases related to prior year positions	(1.4)	(2.0)
Decreases relating to settlements with taxing authorities	(1.2)	0.0
Decrease due to lapse of statute	0.0	(0.2)
Ending balance	$ 6.9	$ 7.9

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Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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