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Condensed Consolidated Statement of Changes in Shareholders' Equity - Unaudited - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands | Total | Common Stock | Additional paid-in capital | Retained deficit | Treasury Stock | Total shareholders’ equity attributable to Matador Resources Company | Non-controlling interest in subsidiary
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance, shares at Dec. 31, 2015 | 85,564,435 | 85,567,000 |  |  | 2,000 |  |
Balance at January 1, 2015 at Dec. 31, 2015 | $ 488,959 | $ 856 | $ 1,026,077 | $ (538,930) | $ 0 | $ 488,003 | $ 956
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Issuance of common stock, shares |  | 7,500,000 |  |  |  |  |
Issuance of common stock | 142,350 | $ 75 | 142,275 |  |  | 142,350 |
Cost to issue equity | (830) |  | (830) |  |  | (830) |
Stock-based compensation expense related to equity-based awards | 8,681 |  | 8,681 |  |  | 8,681 |
Stock options exercised, shares |  | (18,000) |  |  |  |  |
Stock options exercised, net of options forfeited in net share settlements |  |  | 0 |  |  | 0 |
Stock options exercised, net of options forfeited in net share settlements | 0 |  |  |  |  |  |
Restricted stock issued, shares |  | 465,000 |  |  |  |  |
Restricted stock issued |  | $ 5 | (5) |  |  |  |
Restricted stock forfeited, shares |  |  |  |  | 114,000 |  |
Vesting of restricted stock units | 0 | $ 31 | 0 |  |  | 0 |
Current period net loss | $ (201,366) |  |  | (201,575) |  | (201,575) | 209
Ending Balance, shares at Sep. 30, 2016 | 93,290,199 | 93,581,000 |  |  | 116,000 |  |
Balance at June 30, 2016 at Sep. 30, 2016 | $ 437,794 | $ 936 | $ 1,176,198 | $ (740,505) | $ 0 | $ 436,629 | $ 1,165

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