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Income Taxes - Net Tax Effect of State and Foreign Loss Carryforwards (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 30, 2018 | Dec. 31, 2017 | Jan. 01, 2017
Operating Loss Carryforwards [Line Items] |  |  |
No expiration | $ 29.5 |  |
Total | 30.8 | $ 38.8 |
Income tax (benefit) expense | (27.1) | $ 12.8 | $ 30.0
2019-2020 |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Subject to expiration | 0.7 |  |
2021-2035 |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Subject to expiration | $ 0.6 |  |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. + References No definition available. + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
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