Credit facility fee.

No definition available.

Name:	mtdr_CreditFacilityFee
Namespace Prefix:	mtdr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Federal funds effective plus rate.

+ References

No definition available.

+ Details

Name:	mtdr_FederalFundsEffectivePlusRate
Namespace Prefix:	mtdr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of credit additional interest rate.

+ References

No definition available.

+ Details

Name:	mtdr_LineOfCreditAdditionalInterestRate
Namespace Prefix:	mtdr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of credit amendment date.

+ References

No definition available.

+ Details

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

- Definition

Line of credit borrowing base frequency of valuation.

+ References

No definition available.

+ Details

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

- Definition

Conforming borrowing base.

+ References

No definition available.

+ Details

Name:	mtdr_LineOfCreditConformingBorrowingBase
Namespace Prefix:	mtdr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility additional borrowings.

+ References

No definition available.

+ Details

Name:	mtdr_LineOfCreditFacilityAdditionalBorrowings
Namespace Prefix:	mtdr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility amended maximum borrowing capacity.

+ References

No definition available.

+ Details

Name:	mtdr_LineOfCreditFacilityAmendedMaximumBorrowingCapacity
Namespace Prefix:	mtdr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Covenant, Debt to EBITDA Ratio

+ References

No definition available.

+ Details

Name:	mtdr_LineofCreditFacilityCovenantDebttoEBITDARatio
Namespace Prefix:	mtdr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Covenant, Reduction of Borrowing Base Due to Issuance of Senior Unsecured Notes

+ References

No definition available.

+ Details

Name:	mtdr_LineofCreditFacilityCovenantReductionofBorrowingBaseDuetoIssuanceofSeniorUnsecuredNotes
Namespace Prefix:	mtdr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of reserves required to maintain.

+ References

No definition available.

+ Details

Name:	mtdr_PercentageOfReservesRequiredToMaintain
Namespace Prefix:	mtdr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Repay deficit in agreement period.

+ References

No definition available.

+ Details

Name:	mtdr_RepayDeficitInAgreementPeriod
Namespace Prefix:	mtdr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Definition

Unamortized deferred finance costs.

+ References

No definition available.

+ Details

Name:	mtdr_UnamortizedDeferredFinanceCosts
Namespace Prefix:	mtdr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 45

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1314-112600

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 45

-Paragraph 14

-URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1336-112600

+ Details

Name:	us-gaap_LongTermLineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

Name:	us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=mtdr_ThirdAmendedCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=mtdr_LiborRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
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Period Type:

Revolving Credit Agreement (Details Textual) (USD $)	1 Months Ended	12 Months Ended			1 Months Ended	0 Months Ended
Revolving Credit Agreement (Details Textual) (USD $)	Feb. 29, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Mar. 12, 2014	Sep. 06, 2014	Mar. 13, 2014	Mar. 02, 2015	Sep. 28, 2012
Revolving Credit Agreement (Textual) [Abstract]
Credit Agreement, maturity date		Dec. 29, 2016
The borrowing base under the Credit Agreement determined		semi-annually
Conforming borrowing base							$ 375,000,000	$ 310,000,000
Debt to EBITDA ratio covenant		4.25
Repayments of Lines of Credit	123,000,000us-gaap_RepaymentsOfLinesOfCredit	180,000,000us-gaap_RepaymentsOfLinesOfCredit	130,000,000us-gaap_RepaymentsOfLinesOfCredit	123,000,000us-gaap_RepaymentsOfLinesOfCredit
Long-term Line of Credit, Noncurrent		340,000,000us-gaap_LongTermLineOfCredit	200,000,000us-gaap_LongTermLineOfCredit
Repay deficit in agreement Period		6 months
Outstanding letters of credit		600,000
Unamortized Deferred Finance Costs		1,800,000mtdr_UnamortizedDeferredFinanceCosts
Outstanding borrowings bore interest effective rate		3.30%
Federal Funds Effective Plus Rate		0.50%mtdr_FederalFundsEffectivePlusRate
Percentage of reserves required to maintain		100.00%
Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Company amended and restated its senior secured revolving credit agreement					September 28, 2012
Subsequent Event [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional borrowings for working capital requirements									55,000,000
Long-term Line of Credit, Noncurrent									395,000,000
Outstanding letters of credit			1,300,000						600,000
LIBOR rate [Member]
Revolving Credit Agreement (Textual) [Abstract]
Borrowings interest rate		1.00%
Maximum [Member]
Revolving Credit Agreement (Textual) [Abstract]
Credit facility fee		0.50%
Maximum [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Line Of Credit Facility Amended Maximum Borrowing Capacity		500,000,000
Senior secured revolving credit maximum facility										400,000,000
Current borrowing capacity							450,000,000	385,000,000
Maximum [Member] \| Base rate loan [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate		0.0275
Maximum [Member] \| Eurodollar Loan [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate		0.0375
Minimum [Member]
Revolving Credit Agreement (Textual) [Abstract]
Credit facility fee		0.375%
Minimum [Member] \| Subsequent Event [Member]
Revolving Credit Agreement (Textual) [Abstract]
Reduction of borrowing base by issuance of senior unsecured notes covenant						$ 10,000,000
Minimum [Member] \| Base rate loan [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate		0.0050
Minimum [Member] \| Eurodollar Loan [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate		0.0150