Transactions with Affiliates (Details) - Oasis - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
General and administrative	$ 21,089	$ 12,828	$ 7,821
Interest expense, net of capitalized interest	$ 0	$ 6,945	$ 5,481
Commercial Agreements with OPNA, Oasis Petroleum Marketing LLC (“OPM”) and OMS
Related Party Transaction [Line Items]
Term of contractual arrangements	15 years
Centralized Corporate, General and Administrative Services | Commercial Agreements with OPNA, Oasis Petroleum Marketing LLC (“OPM”) and OMS
Related Party Transaction [Line Items]
Term of contractual arrangements	15 years