Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	$ 92,700	$ 91,477
Accumulated Amortization	(24,931)	(18,264)
Amortized intangible assets, Net Carrying Value	67,769	73,213
Intangible Assets, Gross (Excluding Goodwill)	93,160	91,937
Other intangible assets, net	68,229	73,673
Customer contracts and relationships
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	68,360	67,762
Accumulated Amortization	(19,050)	(14,345)
Amortized intangible assets, Net Carrying Value	49,310	53,417
Operating contracts and licenses
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	9,663	9,315
Accumulated Amortization	(838)	(652)
Amortized intangible assets, Net Carrying Value	8,825	8,663
Tradenames
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	8,495	8,324
Accumulated Amortization	(2,249)	(1,440)
Amortized intangible assets, Net Carrying Value	6,246	6,884
Other
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	893	886
Accumulated Amortization	(554)	(458)
Amortized intangible assets, Net Carrying Value	339	428
Non-compete agreements
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	5,289	5,190
Accumulated Amortization	(2,240)	(1,369)
Amortized intangible assets, Net Carrying Value	3,049	3,821
Business licenses
Finite-Lived Intangible Assets, Net [Abstract]
Unamortized intangible assets, Gross Carrying Value	$ 460	$ 460

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

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)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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-Name Accounting Standards Codification
-Topic 350
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-Section 50
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