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Condensed Consolidated Statement of Changes in Shareholders' Equity - Unaudited - USD ($) $ in Thousands | Total | Common Stock | Additional paid-in capital | Accumulated deficit | Treasury Stock | Total shareholders’ equity attributable to Matador Resources Company | Non-controlling interest in subsidiaries | San Mateo I | San Mateo I Additional paid-in capital | San Mateo I Total shareholders’ equity attributable to Matador Resources Company | San Mateo II | San Mateo II Additional paid-in capital | San Mateo II Total shareholders’ equity attributable to Matador Resources Company | San Mateo II Non-controlling interest in subsidiaries
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance, shares at Dec. 31, 2018 |  | 116,375,000 |  |  | 21,000 |  |  |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2018 | $ 1,779,657 | $ 1,164 | $ 1,924,408 | $ (236,277) | $ (415) | $ 1,688,880 | $ 90,777 |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to directors' and advisors' compensation plan (in shares) |  | 6,000 |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to employee stock compensation plan | 0 | $ 0 | 0 |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to directors' and advisors' compensation plan (in shares) |  | 3,000 |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to directors’ and advisors’ compensation plan | 0 | $ 0 | 0 |  |  | 0 |  |  |  |  |  |  |  |
Stock-based compensation expense related to equity-based awards including amounts capitalized | 5,802 |  | 5,802 |  |  | 5,802 |  |  |  |  |  |  |  |
Stock options exercised, net of options forfeited in net share settlements (in shares) |  | 210,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock options exercised, net of options forfeited in net share settlements | 3,111 | $ 2 | 3,109 |  |  | 3,111 |  |  |  |  |  |  |  |
Restricted stock forfeited (in shares) |  |  |  |  | 184,000 |  |  |  |  |  |  |  |  |
Restricted stock forfeited | (3,170) |  |  |  | $ (3,170) | (3,170) |  |  |  |  |  |  |  |
Contribution related to formation of property |  |  |  |  |  |  |  | $ 11,613 | $ 11,613 | $ 11,613 | $ 0 | $ (506) | $ (506) | $ 506
Contributions from non-controlling interest owners of less-than-wholly-owned subsidiaries, net of tax of $4.3 million (see Note 6) | 12,331 |  | 2,040 |  |  | 2,040 | 10,291 |  |  |  |  |  |  |
Distributions to non-controlling interest owners of less-than-wholly-owned subsidiaries | (8,330) |  |  |  |  |  | (8,330) |  |  |  |  |  |  |
Current period net income | (9,485) |  |  | (16,947) |  | (16,947) | 7,462 |  |  |  |  |  |  |
Ending Balance, shares at Mar. 31, 2019 |  | 116,594,000 |  |  | 205,000 |  |  |  |  |  |  |  |  |
Ending balance at Mar. 31, 2019 | $ 1,791,529 | $ 1,166 | 1,946,466 | (253,224) | $ (3,585) | 1,690,823 | 100,706 |  |  |  |  |  |  |
Beginning Balance, shares at Dec. 31, 2019 | 116,642,899 | 116,644,000 |  |  | 1,000 |  |  |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2019 | $ 1,969,452 | $ 1,166 | 1,981,014 | (148,500) | $ (26) | 1,833,654 | 135,798 |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to directors' and advisors' compensation plan (in shares) |  | 3,000 |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to employee stock compensation plan | 0 | $ 0 | 0 |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to directors' and advisors' compensation plan (in shares) |  | 2,000 |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock pursuant to directors’ and advisors’ compensation plan | 0 | $ 0 | 0 |  |  | 0 |  |  |  |  |  |  |  |
Stock-based compensation expense related to equity-based awards including amounts capitalized | 5,066 |  | 5,066 |  |  | 5,066 |  |  |  |  |  |  |  |
Stock options exercised, net of options forfeited in net share settlements (in shares) |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
Stock options exercised, net of options forfeited in net share settlements | (24) | $ 0 | (24) |  |  | (24) |  |  |  |  |  |  |  |
Liability-based stock option awards settled in equity | 298 | $ 1 | 297 |  |  | 298 |  |  |  |  |  |  |  |
Liability-based stock option awards settled in equity (in shares) |  | 22,000 |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock forfeited (in shares) |  |  |  |  | 106,000 |  |  |  |  |  |  |  |  |
Restricted stock forfeited | (1,267) |  |  |  | $ (1,267) | (1,267) |  |  |  |  |  |  |  |
Contribution related to formation of property |  |  |  |  |  |  |  | $ 11,613 | $ 11,613 | $ 11,613 |  |  |  |
Contributions from non-controlling interest owners of less-than-wholly-owned subsidiaries, net of tax of $4.3 million (see Note 6) | 45,674 |  | 16,280 |  |  | 16,280 | 29,394 |  |  |  |  |  |  |
Distributions to non-controlling interest owners of less-than-wholly-owned subsidiaries | (11,515) |  |  |  |  |  | (11,515) |  |  |  |  |  |  |
Current period net income | $ 135,083 |  |  | 125,729 |  | 125,729 | 9,354 |  |  |  |  |  |  |
Ending Balance, shares at Mar. 31, 2020 | 116,564,598 | 116,671,000 |  |  | 107,000 |  |  |  |  |  |  |  |  |
Ending balance at Mar. 31, 2020 | $ 2,154,380 | $ 1,167 | $ 2,014,246 | $ (22,771) | $ (1,293) | $ 1,991,349 | $ 163,031 |  |  |  |  |  |  |

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