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Other Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of other intangible assets | Intangible assets consist of the following components:
| As of
| June 30, 2018
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount
Customer lists/relationships | $ | 64,323 |  |  | $ | (35,387 | ) |  | $ | 28,936 |
Patents | 10,319 |  |  | (10,319 | ) |  | — |
Technology and other intangibles | 44,460 |  |  | (12,039 | ) |  | 32,421 |
In process research and development | 2,200 |  |  | — |  |  | 2,200 |
Other intangible assets, net | $ | 121,302 |  |  | $ | (57,745 | ) |  | $ | 63,557 |
Amortization expense for the three months ended June 30, 2018 |  |  |  | $ | 1,704 |  |  |  |
Amortization expense for the six months ended June 30, 2018 |  |  | $ | 3,424 |  |  |
| As of
| December 31, 2017
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount
Customer lists/relationships | $ | 64,323 |  |  | $ | (33,685 | ) |  | $ | 30,638 |
Patents | 10,319 |  |  | (10,319 | ) |  | — |
Technology and other intangibles | 44,460 |  |  | (10,355 | ) |  | 34,105 |
In process research and development | 2,200 |  |  | — |  |  | 2,200 |
Other intangible assets, net | $ | 121,302 |  |  | $ | (54,359 | ) |  | $ | 66,943 |
Amortization expense for the three months ended June 30, 2017 |  |  |  | $ | 1,613 |  |  |  |
Amortization expense for the three months ended June 30, 2017 |  |  |  | $ | 3,149 |  |  |  |
Summary of amortization expense remaining for other intangible assets | mortization expense for other intangible assets as of June 30, 2018 is as follows:
| Amortization expense
2018 | $ | 3,377 |
2019 | 6,754 |
2020 | 6,624 |
2021 | 6,467 |
2022 | 6,230 |
Thereafter | 34,105 |
Total amortization expense | $ | 63,557 |

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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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