| Goodwill and Intangibles Assets (Details 3) - USD ($) $ in Thousands | 3 Months Ended | |
|---|---|---|
| Mar. 31, 2019 | Mar. 31, 2018 | |
| Finite-lived Intangible Assets [Roll Forward] | ||
| Beginning balance | $ 240,500 | $ 310,645 | 
| Intangible Assets, Transfer from IPRD to Developed Tech | 1,500 | 0 | 
| Amortization | (14,266) | (17,014) | 
| Ending balance | $ 227,734 | $ 293,631 | 
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- Definition Intangible Assets, Transfer from IPRD to Developed Tech No definition available. 
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available. 
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