Subsidiary Guarantors Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Condensed Balance Sheet Statements, Captions [Line Items]
Equity Method Investment, Ownership Percentage	100.00%
Intercompany receivable	$ 0	$ 0
Current assets	269,316	305,685
Net property and equipment	3,560,125	3,122,864
Investment in subsidiaries	0	0
Long-term assets	107,198	26,969
Total assets	3,936,639	3,455,518	$ 3,154,202
Intercompany payable	0	0
Current liabilities	403,357	330,022
Senior unsecured notes payable	1,039,020	1,037,837
Other long-term liabilities	581,844	308,002
Total equity attributable to Matador Resources Company	1,795,307	1,688,880
Non-controlling interest in subsidiaries	117,111	90,777
Total liabilities and equity	3,936,639	3,455,518
Eliminating Entries
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	(1,583,718)	(1,274,221)
Current assets	0	0
Net property and equipment	0	0
Investment in subsidiaries	(1,407,993)	(1,585,747)
Long-term assets	(9,366)	(9,502)
Total assets	(3,001,077)	(2,869,470)
Intercompany payable	(1,583,718)	(1,274,221)
Current liabilities	(802)	(724)
Senior unsecured notes payable	0	0
Other long-term liabilities	(8,564)	(8,778)
Total equity attributable to Matador Resources Company	(1,407,993)	(1,585,747)
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	(3,001,077)	(2,869,470)
Matador | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	1,563,060	1,244,405
Current assets	3,762	4,109
Net property and equipment	0	0
Investment in subsidiaries	1,285,250	1,490,401
Long-term assets	3,440	23,897
Total assets	2,855,512	2,762,812
Intercompany payable	0	0
Current liabilities	0	22,874
Senior unsecured notes payable	1,039,020	1,037,837
Other long-term liabilities	21,185	13,221
Total equity attributable to Matador Resources Company	1,795,307	1,688,880
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	2,855,512	2,762,812
Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	20,658	29,816
Current assets	39,545	34,027
Net property and equipment	502,082	379,052
Investment in subsidiaries	0	0
Long-term assets	1,605	1,479
Total assets	563,890	444,374
Intercompany payable	0	0
Current liabilities	53,627	27,988
Senior unsecured notes payable	0	0
Other long-term liabilities	270,409	230,263
Total equity attributable to Matador Resources Company	122,743	95,346
Non-controlling interest in subsidiaries	117,111	90,777
Total liabilities and equity	563,890	444,374
Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	0	0
Current assets	226,009	267,549
Net property and equipment	3,058,043	2,743,812
Investment in subsidiaries	122,743	95,346
Long-term assets	111,519	11,095
Total assets	3,518,314	3,117,802
Intercompany payable	1,583,718	1,274,221
Current liabilities	350,532	279,884
Senior unsecured notes payable	0	0
Other long-term liabilities	298,814	73,296
Total equity attributable to Matador Resources Company	1,285,250	1,490,401
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	$ 3,518,314	$ 3,117,802