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Acquisitions - Schedule of Acquired Intangible Assets (Details) - USD ($) $ in Thousands | Jan. 29, 2021 | Apr. 04, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill |  | $ 1,284,913 | $ 1,251,938
OTN Systems N.V. |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets subject to amortization | $ 33,500 |  |
Goodwill | 39,337 |  |
Total intangible assets | $ 72,837 |  |
Amortization Period | 5 years 10 months 24 days |  |
OTN Systems N.V. | Goodwill |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill | $ 39,337 |  |
OTN Systems N.V. | Developed technologies |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets subject to amortization | $ 20,000 |  |
Amortization Period | 5 years |  |
OTN Systems N.V. | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets subject to amortization | $ 7,500 |  |
Amortization Period | 12 years |  |
OTN Systems N.V. | Sales backlog |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets subject to amortization | $ 3,500 |  |
Amortization Period | 10 months 24 days |  |
OTN Systems N.V. | Trademarks |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets subject to amortization | $ 1,500 |  |
Amortization Period | 2 years |  |
OTN Systems N.V. | Non-compete agreements |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets subject to amortization | $ 1,000 |  |
Amortization Period | 2 years |  |

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