CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operations and maintenance	[1]	$ 55,858	$ 53,922	$ 16,597
General and administrative	[2]	10,301	7,368	3,991
Affiliated Entity | Apache
Operations and maintenance		$ 8,800	$ 9,100	$ 4,700

[1] Includes amounts of $8.8 million, $9.1 million, and $4.7 million to related parties for the years ended December 31, 2019, 2018, and 2017, respectively. Refer to Note 3—Transactions with Affiliates.

[2] Includes amounts of $5.4 million, $6.5 million, and $4.0 million to related parties for the years ended December 31, 2019, 2018, and 2017, respectively. Refer to Note 3—Transactions with Affiliates.