Investments (Details) $ in Thousands	1 Months Ended				12 Months Ended
	May 31, 2018 a mi MMcf	Apr. 30, 2018 MMcf	Nov. 30, 2016 USD ($)	Jul. 31, 2016 USD ($)	Dec. 31, 2019 USD ($) a	Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from equity investments					$ 2,831	$ 12,859
Amortization of intangible assets					13,460	13,460
Distributions received					17,227	$ 24,946
Carnero Gathering, Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership interest (as a percent)				50.00%
Payments to acquire interest in joint venture				$ 37,000	124,100
Assumption of capital commitments in joint venture				7,400
Daily processing capacity | MMcf	400
Acres dedicated for gathering | a	315,000
Carnero Gathering, Joint Venture | Customer Relationships
Schedule of Equity Method Investments [Line Items]
Intangible asset, fair value				$ 13,000
Agreement term (in years)				15 years
Carnero Processing, Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership interest (as a percent)			50.00%
Payments to acquire interest in joint venture			$ 55,500
Assumption of capital commitments in joint venture			$ 24,500
Carnero G&P, Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership interest (as a percent)	50.00%
Payments to acquire interest in joint venture					124,100
Daily processing capacity | MMcf	460	260
Number of miles of high pressure natural gas gathering pipelines | mi	45
Acres dedicated for gathering | a	315,000
Earnings (loss) from equity investments					4,000
Amortization of intangible assets					1,200
Distributions received					$ 17,200
Sanchez Energy
Schedule of Equity Method Investments [Line Items]
Acres dedicated for gathering | a					415,000
Targa | Carnero G&P, Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity interests in plant transferred to joint venture (as a percent)	100.00%