Revenue - Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue
Amortization of customer relationships	$ (17,668)	$ (17,668)	$ (35,336)	$ (35,336)
Total revenue	228,907	232,787	447,398	456,908
Gathering And Processing.
Disaggregation of Revenue
Amortization of customer relationships	(9,272)	(9,271)	(18,543)	(18,542)
Water Handling.
Disaggregation of Revenue
Amortization of customer relationships	(8,396)	(8,397)	(16,793)	(16,794)
Fixed Fee | Gathering And Processing.
Disaggregation of Revenue
Total operating revenues	196,071	192,667	390,514	377,828
Fixed Fee | Water Handling.
Disaggregation of Revenue
Total operating revenues	41,362	37,751	73,801	75,109
Cost plus 3% | Water Handling.
Disaggregation of Revenue
Total operating revenues	16,400	16,425	32,038	31,775
Cost of service fee | Water Handling.
Disaggregation of Revenue
Total operating revenues	4,742	3,612	10,381	7,532
Gathering-low pressure | Gathering And Processing.
Disaggregation of Revenue
Total operating revenues	91,660	91,761	181,097	178,067
Gathering-low pressure rebate | Gathering And Processing.
Disaggregation of Revenue
Total operating revenues	(12,000)		(24,000)
Gathering-high pressure | Gathering And Processing.
Disaggregation of Revenue
Total operating revenues	52,925	51,535	106,319	102,253
Compression | Gathering And Processing.
Disaggregation of Revenue
Total operating revenues	51,486	49,371	103,098	97,508
Fresh water delivery | Water Handling.
Disaggregation of Revenue
Total operating revenues	41,120	37,751	73,164	75,109
Other fluid handling | Water Handling.
Disaggregation of Revenue
Total operating revenues	$ 21,384	$ 20,037	$ 43,056	$ 39,307