Intangible Assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) a	Dec. 31, 2015 USD ($)
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 13,756	$ 2,805
Balance	199,741	1,033
Additions		201,888
Disposals	(219)
Amortization	(13,756)	(3,180)
Balance	$ 185,766	$ 199,741
Customer Contracts
Finite-Lived Intangible Assets [Line Items]
Agreement term	15 years
Dedicated acreage | a	35,000
Useful life	15 years
Balance	$ 185,600
Marketing Contracts
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 200