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Goodwill and Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2016
--- | --- | --- | ---
Other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 83,635 |  | $ 77,387
Accumulated Amortization | (31,459) | $ (30,048) | (30,048)
Net Carrying Amount | 52,176 | $ 47,339 | 47,339
Patents |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 14,780 |  | 14,130
Accumulated Amortization | (3,288) |  | (3,165)
Net Carrying Amount | 11,492 |  | 10,965
Distribution agreements |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 6,626 |  | 6,626
Accumulated Amortization | (3,770) |  | (3,527)
Net Carrying Amount | 2,856 |  | 3,099
License agreements |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 20,745 |  | 20,695
Accumulated Amortization | (3,745) |  | (3,422)
Net Carrying Amount | 17,000 |  | 17,273
Trademarks |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 16,786 |  | 12,380
Accumulated Amortization | (3,658) |  | (3,330)
Net Carrying Amount | 13,128 |  | 9,050
Covenants not to compete |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 1,028 |  | 1,028
Accumulated Amortization | (944) |  | (936)
Net Carrying Amount | 84 |  | 92
Customer lists |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 23,670 |  | 22,261
Accumulated Amortization | (16,054) |  | (15,401)
Net Carrying Amount | $ 7,616 |  | 6,860
Royalty agreements |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  |  | 267
Accumulated Amortization |  |  | (267)
Net Carrying Amount |  |  | $ 0

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- Definition Amount before 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=66006027&loc=d3e16323-109275 + Details
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