Selected Components of Working Capital - Accrued Liabilities Table (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Accrued interest expense	$ 93,823	$ 133,365
Short-term asset retirement obligations	10,805	12,830
Short-term remediation and reclamation obligations	721	2,585
Income taxes payable	7,811	4,585
Contract liabilities	10,929	11,055
Accrued payroll and benefits	56,288	66,563
Short-term lease liabilities	62,627	58,897
Other	36,342	39,518
Total accrued liabilities	279,346	329,398
WES Operating [Member]
Accrued interest expense	93,823	133,365
Short-term asset retirement obligations	10,805	12,830
Short-term remediation and reclamation obligations	721	2,585
Income taxes payable	7,811	4,585
Contract liabilities	10,929	11,055
Accrued payroll and benefits	0	0
Short-term lease liabilities	62,627	58,897
Other	33,980	25,272
Total accrued liabilities	$ 220,696	$ 248,589