Related-Party Transactions - Summary of WES Related-Party Transactions Tables (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Consolidated statements of operations [Abstract]
Revenues and other	[1]	$ 733,982	$ 758,297
Equity income, net – related parties		39,021	49,607
Cost of product		51,459	72,848
Operation and maintenance		174,239	128,976
General and administrative		51,117	48,602
Total operating expenses	[2]	480,673	403,450
Consolidated balance sheets [Abstract]
Accounts receivable, net		558,300		$ 554,263
Other current assets		64,353		59,506
Equity investments		931,852		944,696
Other assets	[3]	194,175		167,049
Total assets	[4]	11,112,488		11,271,628
Accounts and imbalance payables		362,398		360,562
Accrued liabilities		163,498		254,640
Other liabilities		426,590		385,629
Total liabilities	[5]	8,010,924		8,163,513
Consolidated statements of cash flows [Abstract]
Distributions from equity-investment earnings – related parties		39,609	45,870
Contributions to equity investments – related parties		(110)	(2,070)
Distributions from equity investments in excess of cumulative earnings – related parties		12,366	9,925
Distributions to Partnership unitholders	[6]	(196,569)	(134,749)
Net contributions from (distributions to) related parties		0	409
Service Revenues - Fee Based [Member]
Consolidated statements of operations [Abstract]
Revenues and other		647,867	631,598
Service Revenues - Product Based [Member]
Consolidated statements of operations [Abstract]
Revenues and other		46,810	40,867
Product Sales [Member]
Consolidated statements of operations [Abstract]
Revenues and other		39,025	85,589
Related Parties [Member]
Consolidated statements of operations [Abstract]
Revenues and other		448,785	428,709
Cost of product		(3,947)	(19,543)
Operation and maintenance		747	(59)
General and administrative		67	1,975
Total operating expenses		(3,133)	(17,627)
Consolidated balance sheets [Abstract]
Accounts receivable, net		307,570		313,937
Other current assets		4,175		1,578
Other assets		36,158		29,058
Total assets		1,279,755		1,289,269
Accounts and imbalance payables		19,490		32,150
Accrued liabilities		6,109		11,756
Other liabilities		293,077		268,399
Total liabilities		318,676		$ 312,305
Consolidated statements of cash flows [Abstract]
Distributions to Partnership unitholders		(99,671)	(68,455)
Related Parties [Member] | WES Operating [Member]
Consolidated statements of cash flows [Abstract]
Distributions to Partnership unitholders		(4,271)	(2,805)
Related Parties [Member] | Service Revenues - Fee Based [Member]
Consolidated statements of operations [Abstract]
Revenues and other		423,501	414,899
Related Parties [Member] | Service Revenues - Product Based [Member]
Consolidated statements of operations [Abstract]
Revenues and other		8,116	2,243
Related Parties [Member] | Product Sales [Member]
Consolidated statements of operations [Abstract]
Revenues and other		$ 17,168	$ 11,567

[1] Total revenues and other includes related-party amounts of $448.8 million and $428.7 million for the three months ended March 31, 2023 and 2022, respectively. See Note 5.

[2] Total operating expenses includes related-party amounts of $(3.1) million and $(17.6) million for the three months ended March 31, 2023 and 2022, respectively. See Note 5.

[3] Other assets includes $6.3 million and $6.5 million of NGLs line-fill inventory as of March 31, 2023, and December 31, 2022, respectively. Other assets also includes $77.4 million and $60.4 million of materials and supplies inventory as of March 31, 2023, and December 31, 2022, respectively.

[4] Total assets includes related-party amounts of $1.3 billion as of March 31, 2023, and December 31, 2022, which includes related-party Accounts receivable, net of $307.6 million and $313.9 million as of March 31, 2023, and December 31, 2022, respectively. See Note 5.

[5] Total liabilities includes related-party amounts of $318.7 million and $312.3 million as of March 31, 2023, and December 31, 2022, respectively. See Note 5.

[6] Includes related-party amounts. See Note 5.