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Leases - Supplemental Consolidated Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 30, 2018
--- | --- | ---
ROU Assets: |  |
Operating lease right-of-use assets | $ 66.9 | $ 0.0
Finance lease ROU assets | 1.7 |
Total lease assets | 68.6 |
ROU Liabilities: |  |
Operating lease current liabilities | 20.3 | 0.0
Finance lease current liabilities | 0.4 |
Operating lease noncurrent liabilities | 49.3 | $ 0.0
Finance lease noncurrent liabilities | 1.1 |
Total lease liabilities | $ 71.1 |

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- Definition Lease Liabilities [Abstract] + References No definition available. + Details
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- Definition Leases, Liabilities + References No definition available. + Details
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- Definition Leases, Right of Use Asset + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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