Selected Components of Working Capital - Accrued Liabilities Table (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Accrued interest expense	$ 78,154	$ 110,486
Short-term asset retirement obligations	3,453	10,493
Short-term remediation and reclamation obligations	6,061	5,383
Income taxes payable	4,453	2,428
Contract liabilities	14,888	20,903
Accrued payroll and benefits	42,595	44,855
Other	40,379	60,092
Total accrued liabilities	189,983	254,640
WES Operating [Member]
Accrued interest expense	78,154	110,486
Short-term asset retirement obligations	3,453	10,493
Short-term remediation and reclamation obligations	6,061	5,383
Income taxes payable	4,453	2,428
Contract liabilities	14,888	20,903
Accrued payroll and benefits	0	0
Other	38,720	47,596
Total accrued liabilities	$ 145,729	$ 197,289