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Leases - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 29, 2020 | Jan. 03, 2021 | Dec. 30, 2018 | Dec. 29, 2019 | Dec. 31, 2018
Lessee, Lease, Description [Line Items] |  |  |  |  |
Leases, remaining lease term (years) | 15 years |  |  |  |
Operating lease right-of-use assets |  | $ 83.2 |  | $ 60.4 |
Operating lease current liabilities |  | 19.6 |  | 20.1 |
Operating lease noncurrent liabilities |  | $ 67.5 |  | $ 43.3 |
Lease expense |  |  | $ 31.4 |  |
Operating lease, weighted average discount rate, percent | 4.80% | 5.10% |  | 5.70% |
Sale of Main Headquarters |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Operating lease right-of-use assets | $ 37.6 |  |  |  |
Operating lease current liabilities | 1.2 |  |  |  |
Operating lease noncurrent liabilities | $ 36.1 |  |  |  |
Accounting Standards Update 2016-02 |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  | $ 74.1
Operating lease current liabilities |  |  |  |  | 19.8
Operating lease noncurrent liabilities |  |  |  |  | $ 54.3
Minimum |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Leases, remaining lease term (years) |  | 1 year |  |  |
Maximum |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Leases, remaining lease term (years) |  | 10 years |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating 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=121603541&loc=SL77918627-209977 + Details
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