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Business Acquisition Narratives (Details) - USD ($) |  | 3 Months Ended |
--- | --- | --- | ---
Feb. 29, 2016 | Apr. 01, 2016 | Apr. 03, 2015 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  | 100.00% |  |
Business Combination, Contingent Consideration, Liability, Current | [1] |  | $ 7,991,000 |  |
Purchase Consideration Escrow Period |  |  | 18 months |  |
Goodwill |  |  | $ 237,899,000 |  | $ 197,781,000
Net loss |  |  | (25,180,000) | $ (2,657,000) |
Goodwill, Acquired During Period |  |  | 39,206,000 |  |
TVN [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 100.00% |  |  |
Payments to Acquire Businesses, Gross |  | $ 84,600,000 |  |  |
Purchase Consideration Remain in Escrow |  |  | 13,500,000 |  |
Goodwill |  |  | 39,206,000 |  |
Revenues |  |  | 2,900,000 |  |
Net loss |  |  | (5,500,000) |  |
Business Combination, Acquisition Related Costs |  |  | 3,096,000 |  |
In Process Research and Development | TVN [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  | $ 980,000 |  |
Minimum [Member] | In Process Research and Development | TVN [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Project Completion Period |  |  | 3 months |  |
Maximum [Member] | In Process Research and Development | TVN [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Project Completion Period |  |  | 6 months |  |
[1] | The TVN acquisition is subject to post-closing adjustments as set forth in the TVN Purchase Agreement to be determined within 90 days from the acquisition date in amounts respectively capped to (i) the difference between €76 million (as converted from euros into U.S. dollars) and $75 million, with respect to an adjustment based on TVN’s 2015 revenue, and (ii) $5 million with respect to an adjustment based on TVN’s 2015 backlog that ships during the first half of 2016.

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + 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=34752592&loc=d3e1043-128460 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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