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Acquisitions (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) agreement contract | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) contract
Acquisitions |  |  |
Number of acquisitions | agreement | 4 |  |
Purchase price, net of cash acquired | $ 185.6 | $ 16.5 |
Amortization expense | $ 12.3 | $ 12.9 |
Cable Products and Solutions |  |  |
Acquisitions |  |  |
Number of acquisitions | agreement | 1 |  |
Interconnect Products and Assemblies |  |  |
Acquisitions |  |  |
Number of acquisitions | 3 |  | 2
Purchase price, net of cash acquired |  |  | $ 50.4
Number of acquisitions for which acquisition accounting has been completed | contract | 1 |  |

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