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Amount of noncash expense for share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Equity-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 17, 2020	Dec. 31, 2019
Stock-based compensation expense
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01			$ 0.01
Equity based compensation expense recognized	$ 7,973	$ 6,549	$ 11,302	$ 15,452
2020 Plan
Stock-based compensation expense
Number of stock-based compensation awards authorized					10,050,000
Number of shares available for future grant under the Plan	10,050,833		10,050,833
Midstream Plan
Stock-based compensation expense
Number of stock-based compensation awards authorized	10,000,000		10,000,000
Restricted stock awards
Stock-based compensation expense
Equity based compensation expense recognized	$ 4,080	2,624	$ 5,958	6,600
Stock options
Stock-based compensation expense
Equity based compensation expense recognized		45		389
Performance share unit awards
Stock-based compensation expense
Equity based compensation expense recognized	2,631	2,666	3,553	5,628
Antero Midstream Partners Phantom Unit Awards
Stock-based compensation expense
Equity based compensation expense recognized	$ 1,262	949	1,422	2,075
Equity awards issued to directors
Stock-based compensation expense
Equity based compensation expense recognized		$ 265	$ 369	$ 760
Antero Midstream Corporation \| Midstream Plan
Stock-based compensation expense
Conversion rate of units converted into restricted stock			1.8926
Antero Midstream Corporation \| Midstream Plan \| Common Stock
Stock-based compensation expense
Conversion rate of units converted into restricted stock			1