Transactions with Affiliates (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 01, 2020
Related Party Transaction
Total Midstream Services — Affiliate	$ 88,954	$ 112,224	$ 296,477	$ 313,296
General and Administrative Expense — Affiliate	4,097	2,045	10,879	6,501
General and Administrative Expense — Third Party	2,147	2,328	7,297	7,404
Total General and Administrative Expense	6,244	4,373	18,176	13,905
Annual cap rate		6,900		6,900	$ 15,700
Noble Energy | Noble Energy
Related Party Transaction
Total Midstream Services — Affiliate	88,954	112,224	296,477	313,296
Noble Energy | Noble Energy | Gathering and Processing
Related Party Transaction
Total Midstream Services — Affiliate	80,030	90,586	251,999	244,102
Noble Energy | Noble Energy | Fresh Water Delivery
Related Party Transaction
Total Midstream Services — Affiliate	8,420	20,847	42,319	66,801
Noble Energy | Noble Energy | Other
Related Party Transaction
Total Midstream Services — Affiliate	$ 504	$ 791	$ 2,159	$ 2,393