Subsidiary Guarantors Consolidated Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	$ 608,523	$ 299,125	$ 134,086
Net cash used in investing activities	(1,515,253)	(819,284)	(448,739)
Net cash provided by financing activities	888,232	408,499	467,706
(Decrease) increase in cash and restricted cash	(18,498)	(111,660)	153,053
Cash and restricted cash at beginning of year	102,482	214,142	61,089
Cash and restricted cash at end of year	83,984	102,482	214,142
Eliminating Entries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	0	0	0
Net cash used in investing activities	(42,330)	(106,595)	384,801
Net cash provided by financing activities	42,330	106,595	(384,801)
(Decrease) increase in cash and restricted cash	0	0	0
Cash and restricted cash at beginning of year	0	0	0
Cash and restricted cash at end of year	0	0	0
Matador \| Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	(657,860)	(307,982)	(45,215)
Net cash used in investing activities	0	33	(324,724)
Net cash provided by financing activities	658,030	208,440	469,654
(Decrease) increase in cash and restricted cash	170	(99,509)	99,715
Cash and restricted cash at beginning of year	286	99,795	80
Cash and restricted cash at end of year	456	286	99,795
Non-Guarantor Subsidiaries \| Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	35,119	21,308	6,694
Net cash used in investing activities	(162,147)	(114,852)	(64,999)
Net cash provided by financing activities	140,205	96,307	60,110
(Decrease) increase in cash and restricted cash	13,177	2,763	1,805
Cash and restricted cash at beginning of year	5,663	2,900	1,095
Cash and restricted cash at end of year	18,840	5,663	2,900
Guarantor Subsidiaries \| Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	1,231,264	585,799	172,607
Net cash used in investing activities	(1,310,776)	(597,870)	(443,817)
Net cash provided by financing activities	47,667	(2,843)	322,743
(Decrease) increase in cash and restricted cash	(31,845)	(14,914)	51,533
Cash and restricted cash at beginning of year	96,533	111,447	59,914
Cash and restricted cash at end of year	$ 64,688	$ 96,533	$ 111,447

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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.

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