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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

X

- 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.

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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

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- Definition

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+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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