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Intangible assets, net (Tables) | 12 Months Ended
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Dec. 31, 2017
Intangible assets, net |
Summary of estimated amortization expense on intangible assets |
2018 |  | $ | 882 |
2019 |  |  | 730 |
2020 |  |  | 606 |
2021 |  |  | 491 |
2022 |  |  | 363 |
Thereafter |  |  | 106 |

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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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