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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 04, 2021 | Jun. 28, 2020 | Jul. 04, 2021 | Jun. 28, 2020
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) | $ (2.6) | $ 0.9 | $ 7.9 | $ (35.3)
United Kingdom |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) | (5.2) |  |  |
Brazil |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) |  | (7.7) |  |
Mexico |  |  |  |
Income Taxes [Line Items] |  |  |  |
Deferred tax asset | 4.4 |  | 4.4 |
Persol Holdings |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) | $ 1.9 | $ 9.0 | $ 11.1 | (14.8)
Goodwill |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) |  |  |  | $ (23.0)

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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