Subsidiary Guarantors Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Condensed Balance Sheet Statements, Captions [Line Items]
Equity Method Investment, Ownership Percentage	100.00%
Intercompany receivable	$ 0	$ 0
Current assets	273,384	305,685
Net property and equipment	3,383,343	3,122,864
Investment in subsidiaries	0	0
Long-term assets	94,724	26,969
Total assets	3,751,451	3,455,518	$ 2,555,847
Intercompany payable	0	0
Current liabilities	336,775	330,022
Senior unsecured notes payable	1,038,625	1,037,837
Other long-term liabilities	535,448	308,002
Total equity attributable to Matador Resources Company	1,736,477	1,688,880
Non-controlling interest in subsidiaries	104,126	90,777
Total liabilities and equity	3,751,451	3,455,518
Eliminating Entries
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	(1,595,363)	(1,274,221)
Current assets	0	0
Net property and equipment	0	0
Investment in subsidiaries	(1,320,283)	(1,585,747)
Long-term assets	(9,569)	(9,502)
Total assets	(2,925,215)	(2,869,470)
Intercompany payable	(1,595,363)	(1,274,221)
Current liabilities	(802)	(724)
Senior unsecured notes payable	0	0
Other long-term liabilities	(8,767)	(8,778)
Total equity attributable to Matador Resources Company	(1,320,283)	(1,585,747)
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	(2,925,215)	(2,869,470)
Matador | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	1,582,828	1,244,405
Current assets	3,967	4,109
Net property and equipment	0	0
Investment in subsidiaries	1,211,056	1,490,401
Long-term assets	10,589	23,897
Total assets	2,808,440	2,762,812
Intercompany payable	0	0
Current liabilities	18,493	22,874
Senior unsecured notes payable	1,038,625	1,037,837
Other long-term liabilities	14,845	13,221
Total equity attributable to Matador Resources Company	1,736,477	1,688,880
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	2,808,440	2,762,812
Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	12,535	29,816
Current assets	44,100	34,027
Net property and equipment	438,681	379,052
Investment in subsidiaries	0	0
Long-term assets	1,700	1,479
Total assets	497,016	444,374
Intercompany payable	0	0
Current liabilities	33,080	27,988
Senior unsecured notes payable	0	0
Other long-term liabilities	250,583	230,263
Total equity attributable to Matador Resources Company	109,227	95,346
Non-controlling interest in subsidiaries	104,126	90,777
Total liabilities and equity	497,016	444,374
Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	0	0
Current assets	225,317	267,549
Net property and equipment	2,944,662	2,743,812
Investment in subsidiaries	109,227	95,346
Long-term assets	92,004	11,095
Total assets	3,371,210	3,117,802
Intercompany payable	1,595,363	1,274,221
Current liabilities	286,004	279,884
Senior unsecured notes payable	0	0
Other long-term liabilities	278,787	73,296
Total equity attributable to Matador Resources Company	1,211,056	1,490,401
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	$ 3,371,210	$ 3,117,802