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Discontinued Operations - Additional Information (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 11, 2018 | Sep. 29, 2019 | Sep. 30, 2018 | Sep. 29, 2019 | Sep. 30, 2018
Public Safety & Security | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Purchase price, in cash | $ 69.0 |  |  |  |
Working capital adjustment | 8.0 |  |  |  |
Proceeds from divestiture | 70.0 |  |  | $ 2.4 |
Working capital retained | $ 7.0 |  |  |  |
Transaction costs |  |  |  | $ 2.7 |
Herley | Disposed of by Sale |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Impact of revenue |  |  |  |  | $ 1.8
Impact of operating results |  |  |  |  | 2.0
Transaction-related costs |  |  | $ 0.0 |  | $ 2.7
Gain from tax liability |  | $ 3.6 |  |  |

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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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