Subsidiary Guarantors Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Condensed Balance Sheet Statements, Captions [Line Items]
Ownership percentage	100.00%
Intercompany receivable	$ 0	$ 0
Current assets	237,224	278,492
Net property and equipment	3,482,509	3,699,595
Investment in subsidiaries	0	0
Long-term assets	66,497	91,589
Total assets	3,786,230	4,069,676	$ 3,936,639
Intercompany payable	0	0
Current liabilities	286,359	399,772
Senior unsecured notes payable	1,040,602	1,039,416
Other long-term liabilities	881,640	661,036
Total equity attributable to Matador Resources Company	1,371,933	1,833,654
Non-controlling interest in subsidiaries	205,696	135,798
Total liabilities and equity	3,786,230	4,069,676
Eliminating Entries
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	(1,586,605)	(1,607,350)
Current assets	0	0
Net property and equipment	0	0
Investment in subsidiaries	(1,059,648)	(1,476,934)
Long-term assets	(10,565)	(10,532)
Total assets	(2,656,818)	(3,094,816)
Intercompany payable	(1,586,605)	(1,607,350)
Current liabilities	(926)	(909)
Senior unsecured notes payable	0	0
Other long-term liabilities	(9,639)	(9,623)
Total equity attributable to Matador Resources Company	(1,059,648)	(1,476,934)
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	(2,656,818)	(3,094,816)
Matador | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	1,568,806	1,578,133
Current assets	7,158	29
Net property and equipment	0	0
Investment in subsidiaries	838,465	1,332,237
Long-term assets	805	0
Total assets	2,415,234	2,910,399
Intercompany payable	0	0
Current liabilities	0	0
Senior unsecured notes payable	1,040,602	1,039,416
Other long-term liabilities	2,699	37,329
Total equity attributable to Matador Resources Company	1,371,933	1,833,654
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	2,415,234	2,910,399
Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	17,799	29,217
Current assets	39,043	37,933
Net property and equipment	756,758	583,899
Investment in subsidiaries	0	0
Long-term assets	2,433	3,072
Total assets	816,033	654,121
Intercompany payable	0	0
Current liabilities	49,558	73,086
Senior unsecured notes payable	0	0
Other long-term liabilities	339,596	300,540
Total equity attributable to Matador Resources Company	221,183	144,697
Non-controlling interest in subsidiaries	205,696	135,798
Total liabilities and equity	816,033	654,121
Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Intercompany receivable	0	0
Current assets	191,023	240,530
Net property and equipment	2,725,751	3,115,696
Investment in subsidiaries	221,183	144,697
Long-term assets	73,824	99,049
Total assets	3,211,781	3,599,972
Intercompany payable	1,586,605	1,607,350
Current liabilities	237,727	327,595
Senior unsecured notes payable	0	0
Other long-term liabilities	548,984	332,790
Total equity attributable to Matador Resources Company	838,465	1,332,237
Non-controlling interest in subsidiaries	0	0
Total liabilities and equity	$ 3,211,781	$ 3,599,972