Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	$ 85,768	$ 42,743
Accumulated Amortization	(15,626)	(9,881)
Amortized intangible assets, Net Carrying Value	70,142	32,862
Intangible Assets, Gross (Excluding Goodwill)	86,228	43,203
Other intangible assets, net	70,602	33,322
Customer contracts and relationships
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	65,923	38,342
Accumulated Amortization	(12,222)	(7,814)
Amortized intangible assets, Net Carrying Value	53,701	30,528
Operating contracts and licenses
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	9,535	665
Accumulated Amortization	(648)	(272)
Amortized intangible assets, Net Carrying Value	8,887	393
Other
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	10,310	3,736
Accumulated Amortization	(2,756)	(1,795)
Amortized intangible assets, Net Carrying Value	7,554	1,941
Business licenses
Finite-Lived Intangible Assets, Net [Abstract]
Unamortized intangible assets, Gross Carrying Value	$ 460	$ 460