STATEMENT OF CONSOLIDATED CASH FLOWS (Unaudited) (Parenthetical) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Accrued capital expenditures	[1]	$ 29,792	$ 108,921
Affiliated Entity | Apache
Proceeds from partnership contribution			$ 128,700
Accrued capital expenditures		$ 33,200

[1] Includes $33.2 million due from Apache pursuant to the terms of the COMA. Refer to Note 3 — Transactions with Affiliates for more information.