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Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 29, 2019 | Dec. 30, 2018 | Dec. 31, 2017
Unrecognized Tax Benefits |  |  |
Balance at the beginning of period | $ 17.7 | $ 15.6 | $ 18.6
Increases related to prior periods | 0.2 | 0.5 | 0.4
Increases related to current year tax positions | 6.3 | 4.0 | 1.1
Expiration of applicable statutes of limitations | (0.1) | (0.4) | (0.6)
Decrease in federal tax rate | (0.1) | (0.3) | (3.9)
Decrease in federal tax rate | (0.1) | (0.3) | (3.9)
Decreases related to disposition |  | (1.7) |
Balance at the end of period | $ 24.0 | $ 17.7 | $ 15.6

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- Definition Unrecognized Tax Benefits, Decrease Resulting from Disposition + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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