Goodwill and Other Intangible Assets (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net, beginning balance	$ 173,065	$ 174,838	$ 7,585
Amortization	(10,334)	(15,875)	(6,018)
Currency translation adjustments	(508)	(545)	9
Finite-Lived Intangible Assets, Net, ending balance	$ 162,223	173,065	174,838
Barcas Field Services, LLC [Member] | Crude Transportation [Member]
Finite-Lived Intangible Assets [Line Items]
Customer contract intangible asset acquired			6,930
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		(50)
Mid-America Midstream Gas Services, LLC [Member] | SemGas [Member]
Finite-Lived Intangible Assets [Line Items]
Customer contract intangible asset acquired			$ 166,332
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		(2,313)
Chesapeake crude oil trucking assets [Member] | Crude Transportation [Member]
Finite-Lived Intangible Assets [Line Items]
Customer contract intangible asset acquired		$ 17,010