| Goodwill and Intangibles Assets (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | |
| Business Acquisition [Line Items] | ||||
| Finite-Lived Intangible Assets, Net - Beginning Balance | $ 81,861 | |||
| Additions | 5,378 | |||
| Amortization | $ 17,968 | $ 5,790 | 37,330 | $ 10,460 | 
| Finite-Lived Intangible Assets, Net - Ending Balance | $ 310,909 | 310,909 | ||
| Exar and G.hn business [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Finite-lived Intangible Assets Acquired | $ 245,500 | |||
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- Definition Purchases of intangible finite lived assets unrelated to acquisition 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://www.xbrl.org/2003/role/presentationRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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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://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. No definition available. 
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- Details 
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