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Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining useful life | 80 months |
Amortizable intangible assets, net | $ 89,499 | $ 114,290
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining useful life | 80 months |
Amortizable intangible assets, net | $ 78,527 | 98,484
Accumulated amortization of intangible assets | $ 53,926 | 33,968
Trade names |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining useful life | 92 months |
Amortizable intangible assets, net | $ 8,326 | 10,868
Accumulated amortization of intangible assets | $ 8,367 | 5,825
Computer software |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining useful life | 17 months |
Amortizable intangible assets, net | $ 2,646 | 4,938
Accumulated amortization of intangible assets | $ 2,741 | $ 15,420

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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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