Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Net income (loss) attributable to Matador Resources Company shareholders — numerator	$ 584,968	$ (593,205)	$ 87,777
Weighted average common shares outstanding — denominator
Basic (in shares)	116,999	116,068	116,555
Dilutive effect of options and restricted stock units (in shares)	2,164	0	508
Diluted weighted average common shares outstanding (in shares)	119,163	116,068	117,063
Earnings (loss) per common share attributable to Matador Resources Company shareholders
Basic (usd per share)	$ 5.00	$ (5.11)	$ 0.75
Diluted (usd per share)	$ 4.91	$ (5.11)	$ 0.75