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No definition available.

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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		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Stock-based compensation expense
Number of stock-based compensation awards authorized	16,906,500		16,906,500
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01		$ 0.01
Number of shares available for future grant under the Plan	6,046,007		6,046,007
Equity based compensation expense recognized	$ 3,875	$ 16,202	$ 19,327	$ 56,429
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	$ 2,229	10,001	$ 8,829	33,676
Stock options
Stock-based compensation expense
Equity based compensation expense recognized		452	389	1,428
Performance share unit awards
Stock-based compensation expense
Equity based compensation expense recognized	399	1,017	6,027	7,018
Antero Midstream Partners Phantom Unit Awards
Stock-based compensation expense
Equity based compensation expense recognized	867	4,193	2,942	12,752
Equity awards issued to directors
Stock-based compensation expense
Equity based compensation expense recognized	$ 380	$ 539	$ 1,140	$ 1,555
Antero Midstream Corporation \| Midstream Plan
Stock-based compensation expense
Conversion rate of units converted into restricted stock			1.8926
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01