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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 | Nov. 29, 2017 | Sep. 29, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  | $ 1,659.2 | $ 932.5 | $ 916.9
Proceeds from divestiture of business |  |  |  |  | 5.2 | 8.4 | 20.0
Gain on divestiture of business |  |  |  |  | 0.0 | 5.0 | 12.5
Revenue from external customers |  |  |  |  | $ 5,517.9 | 5,878.3 | 5,543.1
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 |
Disposal Group, Not Discontinued Operations | Xsens Holding B.V. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from divestiture of business |  |  |  | $ 20.8 |  |  |
Gain on divestiture of business |  |  |  | $ 12.5 |  |  |
Percentage of outstanding shares disposed of |  |  |  | 100.00% |  |  |
Cash consideration received |  |  |  | $ 26.0 |  |  |
Percentage of cash consideration deposited in escrow |  |  |  | 20.00% |  |  |
Amount of cash consideration deposited in escrow |  |  |  | $ 5.2 |  |  |
Carrying value of assets and liabilities sold |  |  |  | 7.0 |  |  |
Goodwill disposed of |  |  |  | $ 6.5 |  |  |
HIDM |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from divestiture of business |  |  |  |  |  |  | 52.5
Licensing income |  |  |  |  |  | 10.0 | $ 42.5
QST Co. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
License fees |  |  | $ 13.0 |  |  |  |
Other fees |  |  | $ 8.5 |  |  |  |
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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