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Acquisitions, Divestitures and Licensing Transactions - 2018 Acquisition, Divestitures and Licensing Transactions (Details) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Jun. 25, 2018 | May 08, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |  |  |
Goodwill |  |  | $ 1,663.4 | $ 1,659.2 | $ 932.5
Proceeds from divestiture of business |  |  | 0.0 | 5.2 | 8.4
Gain on divestiture of business |  |  | 0.0 | 0.0 | 5.0
Revenue from external customers |  |  | $ 5,255.0 | $ 5,517.9 | 5,878.3
Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Gain on divestiture of business |  |  |  |  | 5.0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Transient Voltage Suppressing Diodes |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Proceeds from divestiture of business | $ 5.6 |  |  |  |
Gain on divestiture of business | $ 4.6 |  |  |  |
HIDM |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Licensing income |  |  |  |  | 10.0
QST Co. | License |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Revenue from external customers |  |  |  |  | $ 22.7
SensL Technologies, Ltd. |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Amount of outstanding shares acquired in the period |  | 100.00% |  |  |
Cash paid for acquisition |  | $ 71.6 |  |  |
Intangible assets acquired |  | 31.4 |  |  |
Developed technology |  | $ 30.0 |  |  |
Weighted average useful life (in years) |  | 7 years |  |  |
Goodwill |  | $ 18.9 |  |  |
SensL Technologies, Ltd. | Developed technology |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life (in years) |  | 7 years |  |  |
SensL Technologies, Ltd. | IPRD |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Discount rate (as a percent) |  | 30.00% |  |  |

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