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Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | $ 165,858 | $ 155,127
Amortizable intangible assets, accumulated amortization | (112,616) | (100,912)
Amortizable intangible assets, net carrying amount | $ 53,242 | $ 54,215
Amortizable intangible assets, weighted average remaining life (Years) | 11 years | 11 years 9 months 18 days
Non-amortizable intangible assets | $ 13,027 | $ 13,027
Gross carrying amount | 178,885 | 168,154
Net carrying amount | 66,269 | 67,242
Patents and Acquired Technologies |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | 82,821 | 78,253
Amortizable intangible assets, accumulated amortization | (66,297) | (62,010)
Amortizable intangible assets, net carrying amount | $ 16,524 | $ 16,243
Amortizable intangible assets, weighted average remaining life (Years) | 7 years 8 months 12 days | 7 years 6 months
Customer Relationships |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | $ 67,168 | $ 63,029
Amortizable intangible assets, accumulated amortization | (36,914) | (31,531)
Amortizable intangible assets, net carrying amount | $ 30,254 | $ 31,498
Amortizable intangible assets, weighted average remaining life (Years) | 13 years 7 months 6 days | 14 years 8 months 12 days
Customer Backlog |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | $ 2,644 | $ 1,810
Amortizable intangible assets, accumulated amortization | (2,589) | (1,641)
Amortizable intangible assets, net carrying amount | $ 55 | $ 169
Amortizable intangible assets, weighted average remaining life (Years) | 1 year | 2 months 12 days
Non-compete Covenant |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | $ 2,514 | $ 1,830
Amortizable intangible assets, accumulated amortization | (882) | (366)
Amortizable intangible assets, net carrying amount | $ 1,632 | $ 1,464
Amortizable intangible assets, weighted average remaining life (Years) | 3 years 2 months 12 days | 4 years 2 months 12 days
Trademarks and Trade Names |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | $ 10,711 | $ 10,205
Amortizable intangible assets, accumulated amortization | (5,934) | (5,364)
Amortizable intangible assets, net carrying amount | $ 4,777 | $ 4,841
Amortizable intangible assets, weighted average remaining life (Years) | 9 years 1 month 6 days | 9 years 9 months 18 days

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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