Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	$ 54,654	$ 42,743
Accumulated Amortization	(12,551)	(9,881)
Amortized intangible assets, Net Carrying Value	42,103	32,862
Intangible Assets, Gross (Excluding Goodwill)	55,114	43,203
Other intangible assets, net	42,563	33,322
Customer contracts and relationships
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	40,143	38,342
Accumulated Amortization	(9,399)	(7,814)
Amortized intangible assets, Net Carrying Value	30,744	30,528
Operating contracts and licenses
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	9,628	665
Accumulated Amortization	(309)	(272)
Amortized intangible assets, Net Carrying Value	9,319	393
Other
Finite-Lived Intangible Assets, Net [Abstract]
Amortized intangible assets, Gross Carrying Value	4,883	3,736
Accumulated Amortization	(2,843)	(1,795)
Amortized intangible assets, Net Carrying Value	2,040	1,941
Business licenses
Finite-Lived Intangible Assets, Net [Abstract]
Unamortized intangible assets, Gross Carrying Value	$ 460	$ 460