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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net revenue | $ 101,533 | $ 104,175 | $ 212,360 | $ 193,016 |  |
Customer contract liabilities | 145 |  | 145 |  | $ 0 |
Accrued price protection liability | 20,080 | 24,623 | 20,080 | 24,623 | 21,571 | $ 15,176
Right of return assets | 300 |  | 300 |  |  |
Connected Home [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net revenue | 56,517 | 79,214 | 122,175 | 156,454 |  |
Infrastructure [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net revenue | 19,485 | 15,418 | 39,975 | 26,952 |  |
Industrial and multi-market [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net revenue | $ 25,531 | $ 9,543 | $ 50,210 | $ 9,610 |  |
Sales Revenue, Net [Member] | Connected Home [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Concentration risk percentage | 56.00% | 76.00% | 58.00% | 81.00% |  |
Sales Revenue, Net [Member] | Infrastructure [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Concentration risk percentage | 19.00% | 15.00% | 19.00% | 14.00% |  |
Sales Revenue, Net [Member] | Industrial and multi-market [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Concentration risk percentage | 25.00% | 9.00% | 24.00% | 5.00% |  |
Accounts Receivable [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Impairment losses | $ 0 |  |  |  |  |
Reduction in Transaction Price [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Accrued obligations to customers for price adjustments | 8,331 |  | $ 8,331 |  | 0 |
Sales Returns and Allowances [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Accrued obligations to customers for price adjustments | $ 1,573 |  | $ 1,573 |  | $ 0 |

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