XML 22 R25.htm IDEA: XBRL DOCUMENT v2.4.0.6

Nature of Operations (Details)	Jun. 30, 2012 Subsidiaries
Nature of Operations (Textual) [Abstract]
Number of wholly owned subsidiary	4

X

- Details

Name:	mtdr_NatureOfOperationsTextualAbstract
Namespace Prefix:	mtdr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of wholly owned subsidiary.

+ References

No definition available.

+ Details

Name:	mtdr_NumberOfWhollyOwnedSubsidiary
Namespace Prefix:	mtdr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant