Equity Based Compensation and Cash Awards (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended			3 Months Ended				6 Months Ended		12 Months Ended
	Mar. 19, 2019	Apr. 30, 2022	Jul. 31, 2020	Jan. 31, 2020	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2019	Dec. 31, 2021	Mar. 12, 2019
Common Stock
Number of units
Issuance of common stock upon conversion of performance share units (in shares)					754,000	188,000	451,000	268,000
AR LTIP
Additional disclosures
Equity based compensation expense allocated from Antero Resources					$ 0.1		$ 0.4		$ 0.3	$ 1.5
Unamortized expense allocated from Antero Resources					$ 0.1				$ 0.1
AM LTIP
Additional disclosures
Number of stock-based compensation awards authorized													15,398,901
Number of shares available for future grant under the Plan					7,270,722				7,270,722
Cash awards granted			$ 0.7	$ 2.2
Vesting period for cash awards			4 years	3 years
Cash awards accrued in other liabilities					$ 0.4				$ 0.4			$ 1.1
AM LTIP RSUs
Number of units
Total awarded and unvested at the beginning of the period (in shares)						3,573,377			3,573,377
Granted (in shares)									2,750,896
Vested (in shares)									(1,237,558)
Forfeited (in shares)									(132)
Total awarded and unvested at the end of the period (in shares)					5,086,583				5,086,583
Weighted average grant date fair value
Total awarded and unvested at the beginning of the period (in dollars per unit)						$ 8.11			$ 8.11
Granted (in dollars per unit)									11.28
Vested (in dollars per unit)									8.38
Forfeited (in dollars per unit)									11.28
Total awarded and unvested at the end of the period (in dollars per unit)					$ 9.76				$ 9.76
Additional disclosures
Unamortized expense					$ 45.2				$ 45.2
Shares exchange ratio	1.8926
Weighted average period for recognizing unrecognized stock-based compensation expense									2 years 7 months 6 days
Converted AM RSU Awards | Maximum
Additional disclosures
Unamortized expense					$ 0.1				$ 0.1
ROIC PSUs
Number of units
Total awarded and unvested at the beginning of the period (in shares)						116,526			116,526
Granted (in shares)									461,121
Vested (in shares)									(137,712)
Total awarded and unvested at the end of the period (in shares)					439,935				439,935
Weighted average grant date fair value
Total awarded and unvested at the beginning of the period (in dollars per unit)						$ 6.32			$ 6.32
Granted (in dollars per unit)									11.05
Vested (in dollars per unit)									6.32
Total awarded and unvested at the end of the period (in dollars per unit)					$ 11.28				$ 11.28
Additional disclosures
Unamortized expense					$ 9.2				$ 9.2
Weighted average period for recognizing unrecognized stock-based compensation expense									2 years 9 months 18 days
2019 ROIC PSUs
Number of units
Vested (in shares)					(137,712)
Total awarded and unvested at the end of the period (in shares)					0				0
Additional disclosures
Vesting period											3 years
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned					200.00%
2019 ROIC PSUs | Minimum
Additional disclosures
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned											0.00%
2019 ROIC PSUs | Maximum
Additional disclosures
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned											200.00%
2019 ROIC PSUs | Common Stock
Number of units
Issuance of common stock upon conversion of performance share units (in shares)					275,424
2022 ROIC PSUs
Additional disclosures
Vesting period		3 years
2022 ROIC PSUs | Minimum
Additional disclosures
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned		0.00%
2022 ROIC PSUs | Maximum
Additional disclosures
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned		200.00%