v3.24.1.u1

Debt and Interest Expense - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2024 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Debt Instrument [Line Items] |  |  |  |
Gain (loss) on early extinguishment of debt |  | $ 524,000 | $ 0 |
WES Operating [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gain (loss) on early extinguishment of debt |  | 524,000 | $ 0 |
WES Operating [Member] | RCF [Member] | Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Facility, maximum borrowing capacity |  | 2,000,000,000 |  |
Facility, expandable maximum borrowing capacity |  | 2,500,000,000 |  |
Facility, outstanding borrowings |  | 0 |  |
Facility, outstanding letters of credit |  | 500,000 |  |
Facility, available borrowing capacity |  | $ 1,900,000,000 |  |
Facility, interest rate at period end |  | 6.63% | 6.21% |
Facility, fee rate |  | 0.20% |  |
WES Operating [Member] | Commercial Paper Program | Commercial Paper Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Principal amount |  | $ 100,000,000 |  | $ 613,885,000
Facility, maximum borrowing capacity |  | $ 2,000,000,000 |  |
Commercial paper, weighted average interest rate |  | 6.00% |  |
WES Operating [Member] | Commercial Paper Program | Commercial Paper Program | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commercial paper, term |  | 397 days |  |
WES Operating [Member] | Commercial Paper Program | Commercial Paper Program | Weighted Average [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commercial paper, term |  | 4 days |  |
WES Operating [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Repayments of senior notes |  | $ 15,100,000 |  | 276,700,000
Gain (loss) on early extinguishment of debt |  | $ 500,000 |  |
WES Operating [Member] | Senior Notes [Member] | Subsequent Event [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Repayments of senior notes | $ 134,900,000 |  |  |
WES Operating [Member] | Senior Notes [Member] | 3.100% Senior Notes due 2025 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior note, interest rate |  | 3.10% |  |
Senior note, effective interest rate |  | 3.29% | 3.79% |
Principal amount |  | $ 663,831,000 |  | 666,481,000
Repayments of senior notes |  | $ 2,650,000 |  |
WES Operating [Member] | Senior Notes [Member] | 4.050% Senior Notes due 2030 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior note, interest rate |  | 4.05% |  |
Senior note, effective interest rate |  | 4.169% | 4.671% |
Principal amount |  | $ 1,100,612,000 |  | 1,104,593,000
Repayments of senior notes |  | $ 3,981,000 |  |
WES Operating [Member] | Senior Notes [Member] | 5.250% Senior Notes due 2050 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior note, interest rate |  | 5.25% |  |
Senior note, effective interest rate |  | 5.363% | 5.869% |
Principal amount |  | $ 1,000,000,000 |  | 1,000,000,000
WES Operating [Member] | Senior Notes [Member] | 6.350% Senior Notes due 2029 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior note, interest rate |  | 6.35% |  |
Principal amount |  | $ 600,000,000 |  | 600,000,000
WES Operating [Member] | Senior Notes [Member] | 6.150% Senior Notes due 2033 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior note, interest rate |  | 6.15% |  |
Principal amount |  | $ 750,000,000 |  | $ 750,000,000

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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