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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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