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Employee Benefit Plans (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Employee Benefit Plan (Textual) [Abstract]      
Employees annual compensation 3.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent    
Safe Harbor match $ 400,000mtdr_DefinedContributionPlanEmployerMatchingContributionAmount $ 200,000mtdr_DefinedContributionPlanEmployerMatchingContributionAmount $ 200,000mtdr_DefinedContributionPlanEmployerMatchingContributionAmount
Discretionary matching contributions 500,000us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount 300,000us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount 300,000us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
No additional discretionary contributions $ 0mtdr_DefinedContributionPlanEmployerAdditionalDiscretionaryContributionAmount