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Intangible Assets Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jul. 01, 2017 | Jul. 02, 2016 | Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization of Intangible Assets | $ 2,500 | $ 1,800 |
Total cost | 51,159 |  | $ 50,689
Total accumulated amortization | (23,060) |  | (21,313)
Intangible assets, net | 28,099 |  | 29,376
Patents |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | 20,275 |  | 19,950
Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | 7,669 |  | 7,669
Licensing Agreements [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | 7,500 |  | 7,500
Acquired technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | 5,580 |  | 5,580
Trademarks |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | 3,916 |  | 3,777
Capitalized software development costs |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | 2,539 |  | 2,539
Other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total cost | $ 3,680 |  | $ 3,674

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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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