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Acquisitions (Details) - USD ($) $ in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
Feb. 18, 2020 | Sep. 27, 2020 | Dec. 31, 2019
Business Acquisition [Line Items] |  |  |
Goodwill |  | $ 2,363,837 | $ 2,245,305
IWG High Performance Conductors, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Business combination, consideration transferred | $ 260,000 |  |
Goodwill | 107,100 |  |
Finite-lived intangible asset, useful life |  | 20 years |
IWG High Performance Conductors, Inc. | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles | 139,000 |  |
IWG High Performance Conductors, Inc. | Intellectual property |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles | $ 40,000 |  |

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