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Restructuring and Other Charges, Net - Expected, incurred and remaining pre-tax restructuring costs (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 27, 2020 | Jun. 28, 2020 | Sep. 27, 2020 | Sep. 29, 2019
Summary of total expected, incurred and remaining pre-tax costs |  |  |  |
Costs incurred | $ 3.4 |  | $ 8.7 | $ 2.7
Other Actions |  |  |  |
Summary of total expected, incurred and remaining pre-tax costs |  |  |  |
Costs incurred | 3.4 |  | 8.7 | $ 2.7
2020 Other Actions |  |  |  |
Summary of total expected, incurred and remaining pre-tax costs |  |  |  |
Costs incurred | 3.4 | $ 5.6 | 9.0 |
Total expected restructuring costs | 11.0 |  | 11.0 |
2020 Other Actions | Severance |  |  |  |
Summary of total expected, incurred and remaining pre-tax costs |  |  |  |
Costs incurred | 3.1 | 5.3 |  |
Total expected restructuring costs | 8.4 |  | 8.4 |
2020 Other Actions | Asset write-downs |  |  |  |
Summary of total expected, incurred and remaining pre-tax costs |  |  |  |
Costs incurred | 0.3 | $ 0.3 |  |
Total expected restructuring costs | 1.5 |  | 1.5 |
2020 Other Actions | Facility exit and other |  |  |  |
Summary of total expected, incurred and remaining pre-tax costs |  |  |  |
Total expected restructuring costs | $ 1.1 |  | $ 1.1 |

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- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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