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Business Acquisition - Acquisition and Integration Expenses (Details) - TVN [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
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Jun. 30, 2017 | Jul. 01, 2016 | Jun. 30, 2017 | Jul. 01, 2016 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |  |
Business Combination, Acquisition Related Costs |  | $ 885 |  | $ 3,321 |
Business Combination, Integration Related Costs | $ 467 | 2,518 | $ 2,617 | 3,178 |
Business Combination, Acquisition and Integration Related Expenses |  | 6,500 |  | 6,500 | $ 16,900
Cost of Goods, Product Line [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business Combination, Acquisition Related Costs |  | 0 |  | 0 |
Business Combination, Integration Related Costs | 0 | 433 | 342 | 491 |
Research and Development Expense [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business Combination, Acquisition Related Costs |  | 0 |  | 0 |
Business Combination, Integration Related Costs | 0 | 500 | 7 | 550 |
Selling, General and Administrative Expenses [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business Combination, Acquisition Related Costs |  | 885 |  | 3,321 |
Business Combination, Integration Related Costs | $ 467 | $ 1,585 | $ 2,268 | $ 2,137 |

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- Definition Business Combination, Acquisition and Integration Related Expenses + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
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- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. + References No definition available. + Details
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