Represents the number of major purchasers.

No definition available.

Name:	mpo_NumberOfMajorPurchasers
Namespace Prefix:	mpo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the usual period of duration of short-term contracts.

+ References

No definition available.

+ Details

Name:	mpo_ShortTermContractPeriod
Namespace Prefix:	mpo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959

+ Details

Name:	us-gaap_DerivativeNumberOfInstrumentsHeld
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mpo_CustomerOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mpo_CustomerTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_PredecessorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mpo_CustomerThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mpo_CustomerFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Concentrations of Credit Risk (Details)	2 Months Ended	10 Months Ended	12 Months Ended
Concentrations of Credit Risk (Details)	Dec. 31, 2016 derivative item	Oct. 20, 2016 item	Dec. 31, 2016 derivative	Dec. 31, 2015 derivative item	Dec. 31, 2014 item
Concentrations of Credit Risk
Short-term contracts usual term			1 month
Number of derivatives held \| derivative	0		0
Revenue \| Customer concentration
Concentrations of Credit Risk
Number of purchasers	2
Revenue \| Customer concentration \| Purchaser one
Concentrations of Credit Risk
Concentration risk (as a percent)	40.00%
Revenue \| Customer concentration \| Purchaser two
Concentrations of Credit Risk
Concentration risk (as a percent)	29.00%
Accounts receivable \| Customer concentration
Concentrations of Credit Risk
Number of purchasers	2
Accounts receivable \| Customer concentration \| Purchaser one
Concentrations of Credit Risk
Concentration risk (as a percent)	44.00%
Accounts receivable \| Customer concentration \| Purchaser two
Concentrations of Credit Risk
Concentration risk (as a percent)	26.00%
Predecessor
Concentrations of Credit Risk
Number of derivatives held \| derivative				0
Predecessor \| Revenue \| Customer concentration
Concentrations of Credit Risk
Number of purchasers		2		2	4
Predecessor \| Revenue \| Customer concentration \| Purchaser one
Concentrations of Credit Risk
Concentration risk (as a percent)		46.00%		43.00%	28.00%
Predecessor \| Revenue \| Customer concentration \| Purchaser two
Concentrations of Credit Risk
Concentration risk (as a percent)		29.00%		25.00%	18.00%
Predecessor \| Revenue \| Customer concentration \| Purchaser three
Concentrations of Credit Risk
Concentration risk (as a percent)					15.00%
Predecessor \| Revenue \| Customer concentration \| Purchaser four
Concentrations of Credit Risk
Concentration risk (as a percent)					12.00%
Predecessor \| Accounts receivable \| Customer concentration
Concentrations of Credit Risk
Number of purchasers				3
Predecessor \| Accounts receivable \| Customer concentration \| Purchaser one
Concentrations of Credit Risk
Concentration risk (as a percent)				33.00%
Predecessor \| Accounts receivable \| Customer concentration \| Purchaser two
Concentrations of Credit Risk
Concentration risk (as a percent)				29.00%
Predecessor \| Accounts receivable \| Customer concentration \| Purchaser three
Concentrations of Credit Risk
Concentration risk (as a percent)				14.00%