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Goodwill, Other Intangible Assets and Other Assets (Tables) | 9 Months Ended
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Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Other Intangible Assets | Intangible assets at September 30, 2017 and December 31, 2016 consisted of the following:
| September 30, 2017 |  | December 31, 2016
| Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
| (In thousands)
Completed technology | $ | 26,900 |  |  | $ | 17,286 |  |  | $ | 9,614 |  |  | $ | 26,900 |  |  | $ | 14,693 |  |  | $ | 12,207 |
Tradename | 100 |  |  | 100 |  |  | — |  |  | 100 |  |  | 100 |  |  | — |
Customer relationships | 4,490 |  |  | 173 |  |  | 4,317 |  |  | — |  |  | — |  |  | — |
Reacquired distribution rights | 4,150 |  |  | 2,766 |  |  | 1,384 |  |  | — |  |  | — |  |  | — |
Total | $ | 35,640 |  |  | $ | 20,325 |  |  | $ | 15,315 |  |  | $ | 27,000 |  |  | $ | 14,793 |  |  | $ | 12,207 |
Estimated Future Amortization Expense Related to Current Intangible Assets | The estimated future amortization expense is expected to be as follows (in thousands):
Remainder of 2017 | $ | 2,334 |
2018 | 3,803 |
2019 | 3,163 |
2020 | 1,245 |
2021 | 1,245 |
Thereafter | 3,525 |
Total | $ | 15,315 |

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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 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: 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=66006027&loc=d3e16265-109275 + Details
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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=66006027&loc=d3e16323-109275 + Details
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