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Long-Term Debt (Details) - USD ($) $ in Thousands |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 23, 2025 | Sep. 22, 2025 | Jul. 30, 2024 | Jan. 16, 2024 | Jun. 08, 2021 | Jun. 28, 2019 | Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Nov. 10, 2020 | Mar. 12, 2019 | Feb. 25, 2019
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  | $ 3,029,600 |  |  | $ 3,029,600 |  | $ 3,134,300 |  |  |
Unamortized debt premiums |  |  |  |  |  |  |  |  |  |  |  | 882 |  |  |
Unamortized debt issuance costs |  |  |  |  |  |  | (20,906) |  |  | (20,906) |  | (18,224) |  |  |
Total long-term debt |  |  |  |  |  |  | 3,008,694 |  |  | 3,008,694 |  | 3,116,958 |  |  |
Loss on early extinguishment of debt |  |  |  |  |  |  | 1,313 | $ 341 |  | 1,313 | $ 14,091 |  |  |  |
5.75% Senior Notes Due 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  |  |  |  |  |  | 648,082 |  |  |
5.75% Senior Notes Due 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 647,461 |  |  | 647,461 |  | 646,684 |  |  |
5.375% Senior Notes Due 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 745,340 |  |  | 745,340 |  | 744,516 |  |  |
6.625% Senior Notes Due 2032 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 593,939 |  |  | 593,939 |  | 593,376 |  |  |
5.75% Senior Notes Due 2033 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 642,354 |  |  | 642,354 |  |  |  |  |
Antero Midstream Partners | Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  | $ 379,600 |  |  | $ 379,600 |  | 484,300 |  |  |
Weighted average interest rate (as a percent) |  |  |  |  |  |  | 5.75% |  |  | 5.75% |  |  |  |  |
Outstanding letters of credit |  |  |  |  |  |  | $ 0 |  |  | $ 0 |  | $ 0 |  |  |
Weighted average interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 6.09% |  |  |
Current borrowing capacity |  |  | $ 1,250,000 |  |  |  | 870,000 |  |  | 870,000 |  |  |  |  |
Threshold time period related to maturity date |  |  | 91 days |  |  |  |  |  |  |  |  |  |  |  |
Minimum principal outstanding amount |  |  | $ 50,000 |  |  |  |  |  |  |  |  |  |  |  |
Aggregate commitments unrestricted cash percentage |  |  | 85.00% |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument variable rate (as a percent) |  |  | 0.10% |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  | us-gaap:SecuredOvernightFinancingRateSofrMember |  |  |  |  |  |  |  |  |  |  |  |
Floor rate |  |  | 0.00% |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | Credit Facility | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument variable rate (as a percent) |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |
Commitment fees on the unused portion (as a percent) |  |  | 0.25% |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | Credit Facility | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument variable rate (as a percent) |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |
Commitment fees on the unused portion (as a percent) |  |  | 0.375% |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | Credit Facility | Investment Grade Period | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument variable rate (as a percent) |  |  | 1.125% |  |  |  |  |  |  |  |  |  |  |  |
Interest coverage ratio |  |  | 2.5 |  |  |  |  |  |  |  |  |  |  |  |
Commitment fees on the unused portion (as a percent) |  |  | 0.125% |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | Credit Facility | Investment Grade Period | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument variable rate (as a percent) |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |  |
Commitment fees on the unused portion (as a percent) |  |  | 0.30% |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | Credit Facility | Not Investment Grade Period | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated leverage ratio |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | Financial covenant election | Credit Facility | Not Investment Grade Period | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated leverage ratio |  |  | 5.25 |  |  |  |  |  |  |  |  |  |  |  |
Antero Midstream Partners | After effect of financial covenant election | Credit Facility | Not Investment Grade Period | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated leverage ratio |  |  | 5.25 |  |  |  |  |  |  |  |  |  |  |  |
Consolidated senior secured leverage ratio |  |  | 3.75 |  |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 7.875% Senior Notes Due 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 7.875% |  |
Face amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 550,000 |  |
Weighted average premium |  |  |  |  |  |  |  |  | 101.975% |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  |  |  |  |  | $ 14,000 |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  |  |  |  |  |  | $ 650,000 |  |  |
Unamortized debt premiums |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000 |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 5.75% |  |  | 5.75%
Face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 650,000
Debt instrument fair value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 653,000 |
Amount of debt redeemed | $ 650,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  | $ 650,000 |  |  | $ 650,000 |  | $ 650,000 |  |  |
Interest rate (as a percent) |  |  |  |  |  | 5.75% | 5.75% |  |  | 5.75% |  | 5.75% |  |  |
Face amount |  |  |  |  |  | $ 650,000 |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage upon change of control |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2028 | Redemption period one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  |  |  | 100.958% |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2028 | Redemption period two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.375% Senior Notes Due 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  | $ 750,000 |  |  | $ 750,000 |  | $ 750,000 |  |  |
Interest rate (as a percent) |  |  |  |  | 5.375% |  | 5.375% |  |  | 5.375% |  | 5.375% |  |  |
Face amount |  |  |  |  | $ 750,000 |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage upon change of control |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.375% Senior Notes Due 2029 | Redemption period one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  |  | 101.344% |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.375% Senior Notes Due 2029 | Redemption period two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 6.625% Senior Notes Due 2032 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  | $ 600,000 |  |  | $ 600,000 |  | $ 600,000 |  |  |
Interest rate (as a percent) |  |  |  | 6.625% |  |  | 6.625% |  |  | 6.625% |  | 6.625% |  |  |
Face amount |  |  |  | $ 600,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage upon change of control |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 6.625% Senior Notes Due 2032 | Redemption period one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  | 103.313% |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 6.625% Senior Notes Due 2032 | Redemption period two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 6.625% Senior Notes Due 2032 | Redemption period three |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  |  |  | 106.625% |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage with payment of premium and interest |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 6.625% Senior Notes Due 2032 | Redemption period three | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of aggregate principal amount that can be redeemed |  |  |  | 35.00% |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2033 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total principal |  |  |  |  |  |  | $ 650,000 |  |  | $ 650,000 |  |  |  |  |
Interest rate (as a percent) |  | 5.75% |  |  |  |  | 5.75% |  |  | 5.75% |  |  |  |  |
Face amount |  | $ 650,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage upon change of control |  | 101.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2033 | Redemption period one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  | 102.875% |  |  |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2033 | Redemption period two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Finance Corp and together with Antero Midstream Partners | 5.75% Senior Notes Due 2033 | Redemption period three |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage |  | 105.75% |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption percentage with payment of premium and interest |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of aggregate principal amount that can be redeemed |  | 35.00% |  |  |  |  |  |  |  |  |  |  |  |  |

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