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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Other intangible assets | Other intangible assets as of September 30, 2014 and December 31, 2013, consisted of the following (in thousands):
| September 30, 2014
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Patents | $ | 9,921 |  |  | $ | (2,104 | ) |  | $ | 7,817 |
Distribution agreements | 5,376 |  |  | (2,139 | ) |  | 3,237 |
License agreements | 6,327 |  |  | (1,664 | ) |  | 4,663 |
Trademarks | 7,313 |  |  | (1,961 | ) |  | 5,352 |
Covenants not to compete | 1,029 |  |  | (577 | ) |  | 452 |
Customer lists | 20,473 |  |  | (12,649 | ) |  | 7,824 |
Royalty agreements | 267 |  |  | (267 | ) |  | — |
Total | $ | 50,706 |  |  | $ | (21,361 | ) |  | $ | 29,345 |
| December 31, 2013
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Patents | $ | 9,302 |  |  | $ | (2,374 | ) |  | $ | 6,928 |
Distribution agreements | 5,176 |  |  | (1,780 | ) |  | 3,396 |
License agreements | 3,783 |  |  | (1,249 | ) |  | 2,534 |
Trademarks | 7,622 |  |  | (1,844 | ) |  | 5,778 |
Covenants not to compete | 1,029 |  |  | (399 | ) |  | 630 |
Customer lists | 20,626 |  |  | (10,957 | ) |  | 9,669 |
Royalty agreements | 267 |  |  | (267 | ) |  | — |
Total | $ | 47,805 |  |  | $ | (18,870 | ) |  | $ | 28,935 |
Estimated amortization expense | Estimated amortization expense for developed technology and other intangible assets for the next five years consists of the following as of September 30, 2014 (in thousands):
Year Ending December 31 |
Remaining 2014 | $ | 3,821 |
2015 | 15,031 |
2016 | 14,303 |
2017 | 13,898 |
2018 | 13,369 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + 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) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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