Subsidiary Guarantors Consolidated Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	$ 254,208	$ 121,242
Net cash provided by (used in) investing activities	(493,562)	(369,695)
Net cash provided by (used in) financing activities	280,385	180,818
Increase (decrease) in cash and restricted cash	41,031	(67,635)
Cash and restricted cash at beginning of period	102,482	214,142
Cash and restricted cash at end of period	143,513	146,507
Eliminating Entries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	0	0
Net cash provided by (used in) investing activities	40,035	(133,880)
Net cash provided by (used in) financing activities	(40,035)	133,880
Increase (decrease) in cash and restricted cash	0	0
Cash and restricted cash at beginning of period	0	0
Cash and restricted cash at end of period	0	0
Matador \| Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	(224,441)	(98,583)
Net cash provided by (used in) investing activities	0	33
Net cash provided by (used in) financing activities	226,539	0
Increase (decrease) in cash and restricted cash	2,098	(98,550)
Cash and restricted cash at beginning of period	286	99,795
Cash and restricted cash at end of period	2,384	1,245
Non-Guarantor Subsidiaries \| Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	10,225	1,566
Net cash provided by (used in) investing activities	(79,119)	(38,362)
Net cash provided by (used in) financing activities	83,400	47,707
Increase (decrease) in cash and restricted cash	14,506	10,911
Cash and restricted cash at beginning of period	5,663	2,900
Cash and restricted cash at end of period	20,169	13,811
Guarantor Subsidiaries \| Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	468,424	218,259
Net cash provided by (used in) investing activities	(454,478)	(197,486)
Net cash provided by (used in) financing activities	10,481	(769)
Increase (decrease) in cash and restricted cash	24,427	20,004
Cash and restricted cash at beginning of period	96,533	111,447
Cash and restricted cash at end of period	$ 120,960	$ 131,451

Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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