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Taxes on income from continuing operations (Details) | 3 Months Ended | 9 Months Ended
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Sep. 27, 2020 | Sep. 29, 2019 | Sep. 27, 2020 | Sep. 29, 2019
Income Tax Disclosure [Abstract] |  |  |  |
Effective income tax rate | (0.80%) | (132.30%) | 7.80% | (48.40%)

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- Definition Percentage 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 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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