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Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Intangible Assets [Line Items] |  |
Finite and Indefinite-Lived Intangible Assets, Gross, Total | $ 429,534 | $ 325,463
Total Accumulated Amortization | (130,889) | (128,678)
Intangible Assets, Net (Excluding Goodwill) | 298,645 | 196,785
Tradename (indefinite life) [Member] |  |
Intangible Assets [Line Items] |  |
Gross amount, Tradename (indefinite life) | 35,539 | 35,595
Intangible Assets, Net (Excluding Goodwill) | 35,539 | 35,595
Customer Relationships [Member] |  |
Intangible Assets [Line Items] |  |
Gross amount | 279,600 | 201,445
Accumulated Amortization | (70,393) | (68,319)
Intangible Assets, Net (Excluding Goodwill) | 209,207 | 133,126
Proven technology and patents [Member] |  |
Intangible Assets [Line Items] |  |
Gross amount | 98,175 | 78,312
Accumulated Amortization | (51,945) | (52,138)
Intangible Assets, Net (Excluding Goodwill) | 46,230 | 26,174
Tradename (indefinite life) [Member] |  |
Intangible Assets [Line Items] |  |
Gross amount | 8,164 | 4,896
Accumulated Amortization | (3,415) | (3,444)
Intangible Assets, Net (Excluding Goodwill) | 4,749 | 1,452
Other Intangible Assets [Member] |  |
Intangible Assets [Line Items] |  |
Gross amount | 8,056 | 5,215
Accumulated Amortization | (5,136) | (4,777)
Intangible Assets, Net (Excluding Goodwill) | $ 2,920 | $ 438

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