Debt Instrument, Covenant Terms, Aggregate Principal Amount Related to Payment Defaults or Accelerations

No definition available.

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

- Definition

Debt Instrument, Covenant Terms, Amount of Failure to Pay Final Judgments

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant Terms, Percentage of Principal Amount Outstanding

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant Terms, Period after Notice to Comply with Agreements in Indenture

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant Terms, Period after Notice to comply with Reporting Obligations

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant Terms, Period for Failure to Pay Final Judgments

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant Terms, Period of Default when Due of Interest

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Redemption Price, Percentage of Aggregate Principal Amount of Notes Outstanding After Redemption

+ References

No definition available.

+ Details

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

- Definition

Deferred loan costs.

+ References

No definition available.

+ Details

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

- 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

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 additional interest rate.

+ References

No definition available.

+ Details

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

- 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

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

Percentage Of Wholly-Owned Properties Secured By Mortgages

+ References

No definition available.

+ Details

Name:	mtdr_PercentageOfWhollyOwnedPropertiesSecuredByMortgages
Namespace Prefix:	mtdr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Revolving credit agreement.

+ References

No definition available.

+ Details

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

- Definition

Amount of long-term debt due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

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

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed
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

The carrying value as of the balance sheet date of the current and noncurrent portions 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

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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

- 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 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 3: 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

Reference 4: 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 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.(a),16(a)(1))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Subparagraph a(1)

-Article 7

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph 2, 3

-Article 9

+ Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=mtdr_HarveyEYatesCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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_RangeAxis=us-gaap_MinimumMember
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_LongtermDebtTypeAxis=mtdr_FederalFundsEffectiveRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mtdr_BaseRateLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=mtdr_SeniorNotesDue2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt (Details)		1 Months Ended	3 Months Ended	6 Months Ended
Debt (Details)	Apr. 14, 2015 USD ($)	Sep. 30, 2012	Jun. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Aug. 04, 2015 USD ($)	Apr. 06, 2015 USD ($)	Feb. 27, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 28, 2012 USD ($)	Sep. 27, 2012 USD ($)
Revolving Credit Agreement (Textual) [Abstract]
Senior unsecured notes			$ 390,667,000	$ 390,667,000				$ 0
Borrowings under Credit Agreement								338,199,000
Borrowed under credit agreement			$ 0	$ 0
HEYCO
Revolving Credit Agreement (Textual) [Abstract]
Notes payable assumed in business combination							$ 11,982,000
Third Amended Credit Agreement
Revolving Credit Agreement (Textual) [Abstract]
Company amended and restated its senior secured revolving credit agreement		September 28, 2012
Senior secured revolving credit maximum facility									$ 500,000,000	$ 400,000,000
Credit Agreement, maturity date				Dec. 29, 2016
Percentage Of Wholly-Owned Properties Secured By Mortgages			80.00%	80.00%
Borrowing base						$ 450,000,000
Amount of conforming borrowing base						$ 375,000,000
Deferred loan costs			$ 1,400,000	$ 1,400,000
Borrowings under Credit Agreement			0	0
Outstanding letters of credit			$ 600,000	$ 600,000
Outstanding borrowings bore interest effective rate			3.70%	3.70%
Repayments of outstanding borrowings			$ 465,000,000
Percentage of reserves required to maintain				100.00%
Debt to EBITDA Ratio				4.25
Third Amended Credit Agreement \| Subsequent Event
Revolving Credit Agreement (Textual) [Abstract]
Outstanding letters of credit					$ 600,000
Borrowed under credit agreement					$ 0
Third Amended Credit Agreement \| LIBOR rate
Revolving Credit Agreement (Textual) [Abstract]
Borrowings interest rate			1.00%
Third Amended Credit Agreement \| Minimum
Revolving Credit Agreement (Textual) [Abstract]
Commitment fee percentage			0.375%
Third Amended Credit Agreement \| Maximum
Revolving Credit Agreement (Textual) [Abstract]
Commitment fee percentage			0.50%
Federal Funds Effective Rate \| Third Amended Credit Agreement
Revolving Credit Agreement (Textual) [Abstract]
Borrowings interest rate			0.50%
Base Rate Loan \| Third Amended Credit Agreement \| Minimum
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate			0.50%
Base Rate Loan \| Third Amended Credit Agreement \| Maximum
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate			1.50%
Eurodollar \| Third Amended Credit Agreement \| Minimum
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate			1.50%
Eurodollar \| Third Amended Credit Agreement \| Maximum
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate			2.50%
Senior Notes \| Senior Notes Due 2023
Revolving Credit Agreement (Textual) [Abstract]
Senior unsecured notes	$ 400,000,000							$ 0
Borrowings interest rate	0.50%
Interest rate	6.875%
Notes maturity date	Apr. 15, 2023
Percentage of principal amount redeemed	35.00%
Percentage of aggregate principal amount of Notes outstanding after redemption	65.00%
Percentage of principal outstanding	25.00%
Period when payment is due	30 days
Period for failure to comply with notice	180 days
Period after notice to comply	60 days
Aggregate principal amount related to payment defaults or accelerations per debt covenant terms	$ 25,000,000.0
Aggregate failure to pay final judgments (in excess of $25 million)	$ 25,000,000.0
Period for failure to pay final judgments	60 days
Senior Notes \| Senior Notes Due 2023 \| Time prior to April 15, 2018
Revolving Credit Agreement (Textual) [Abstract]
Percentage of principal amount redeemed	106.875%
Notes Payable to Banks
Revolving Credit Agreement (Textual) [Abstract]
Short-term Debt			$ 12,000,000	$ 12,000,000
Notes Payable to Banks \| HEYCO
Revolving Credit Agreement (Textual) [Abstract]
Notes payable assumed in business combination							$ 12,500,000