Consolidated Statements of Equity and Partners' Capital - USD ($) $ in Thousands		Total	Chipeta [Member]	WES Operating [Member]	Common Units [Member]	General Partner [Member]	Noncontrolling Interests [Member]	Noncontrolling Interests [Member] Chipeta [Member]	Noncontrolling Interests [Member] WES Operating [Member]
Balance at Dec. 31, 2022		$ 3,108,115			$ 2,969,604	$ 2,105	$ 136,406
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		208,341			198,959	4,686	4,696
Distributions to noncontrolling interest owners			$ (2,240)	$ (4,271)				$ (2,240)	$ (4,271)
Distributions to Partnership unitholders		(196,569)			(192,039)	(4,530)
Unit repurchases	[1]	(7,061)			(7,061)
Equity-based compensation expense		7,199			7,199
Other		(11,950)			(11,950)
Balance at Mar. 31, 2023		3,101,564			2,964,712	2,261	134,591
Balance at Dec. 31, 2022		3,108,115			2,969,604	2,105	136,406
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		752,255
Balance at Sep. 30, 2023		2,955,092			2,821,958	1,678	131,456
Balance at Mar. 31, 2023		3,101,564			2,964,712	2,261	134,591
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		259,516			247,100	5,821	6,595
Distributions to noncontrolling interest owners			(1,230)	(6,860)				(1,230)	(6,860)
Distributions to Partnership unitholders		(336,987)			(329,227)	(7,760)
Unit repurchases	[1]	(41)			(41)
Equity-based compensation expense		7,665			7,665
Other		(1,464)			(1,464)
Balance at Jun. 30, 2023		3,022,163			2,888,745	322	133,096
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		284,398			270,843	6,453	7,102
Distributions to noncontrolling interest owners			(1,613)	(7,129)				(1,613)	(7,129)
Distributions to Partnership unitholders		(221,442)			(216,345)	(5,097)
Unit repurchases	[1]	(127,500)			(127,500)
Equity-based compensation expense		7,171			7,171
Other		(956)			(956)
Balance at Sep. 30, 2023		2,955,092			2,821,958	1,678	131,456
Balance at Dec. 31, 2023		3,029,130			2,894,231	3,193	131,706
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		586,216			559,500	13,330	13,386
Distributions to noncontrolling interest owners			(1,085)	(4,591)				(1,085)	(4,591)
Distributions to Partnership unitholders		(223,438)			(218,228)	(5,210)
Equity-based compensation expense		9,423			9,423
Other		(19,364)			(19,364)
Balance at Mar. 31, 2024		3,376,291			3,225,562	11,313	139,416
Balance at Dec. 31, 2023		3,029,130			2,894,231	3,193	131,706
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		1,269,672
Balance at Sep. 30, 2024		3,377,517			3,225,855	10,972	140,690
Balance at Mar. 31, 2024		3,376,291			3,225,562	11,313	139,416
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		387,564			369,841	8,807	8,916
Distributions to noncontrolling interest owners			(593)	(6,955)				(593)	(6,955)
Distributions to Partnership unitholders		(340,858)			(332,930)	(7,928)
Equity-based compensation expense		10,391			10,391
Other		(1,831)			(1,831)
Balance at Jun. 30, 2024		3,424,009			3,271,033	12,192	140,784
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)		295,892			281,772	6,708	7,412
Distributions to noncontrolling interest owners			$ (550)	$ (6,956)				$ (550)	$ (6,956)
Distributions to Partnership unitholders		(340,859)			(332,931)	(7,928)
Equity-based compensation expense		8,759			8,759
Other		(2,778)			(2,778)
Balance at Sep. 30, 2024		$ 3,377,517			$ 3,225,855	$ 10,972	$ 140,690

[1] See Note 5.