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Debt (Details Textual) (USD $)
3 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 20, 2013
Dec. 31, 2013
Nov. 15, 2013
Apr. 02, 2014
Oct. 23, 2014
Dec. 31, 2014
Debt [Line Items]                
Long-term Line of Credit, Noncurrent $ 19,602,000us-gaap_LongTermLineOfCredit             $ 0us-gaap_LongTermLineOfCredit
Interest Paid 367,000us-gaap_InterestPaid 334,000us-gaap_InterestPaid            
Letters of Credit Outstanding, Amount 4,803,000us-gaap_LettersOfCreditOutstandingAmount              
Accounts Payable, Total 40,044,000us-gaap_AccountsPayableCurrentAndNoncurrent             72,147,000us-gaap_AccountsPayableCurrentAndNoncurrent
6.75% Notes                
Debt [Line Items]                
Debt Instrument, Face Amount     550,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
         
Debt instrument, stated interest rate 6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
  6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
         
Debt Instrument, Maturity Year     2020          
Debt Instrument, Maturity Date     Apr. 01, 2020          
Proceeds from Offering     537,600,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
         
Debt Instrument, Redemption Date, One Apr. 01, 2016              
Debt Instrument, Redemption Date, Two Apr. 01, 2017              
Debt Instrument, Redemption Date, Latest For Redemption At Face Amount Apr. 01, 2018              
Debt Instrument, Percentage Of Redemption Price, Redemption Date One 103.375%mdca_DebtInstrumentPercentageOfRedemptionPriceRedemptionDateOne
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
             
Debt Instrument, Percentage Of Redemption Price, Redemption Date Two 101.688%mdca_DebtInstrumentPercentageOfRedemptionPriceRedemptionDateTwo
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
             
Debt Instrument, Percentage Of Redemption Price, Redemption Date, Latest For Redemption At Face Amount 100.00%mdca_DebtInstrumentPercentageOfRedemptionPriceRedemptionDateLatestForRedemptionAtFaceAmount
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
             
Debt Instrument, Percentage Redeemable Redemption Date, Additional 106.75%mdca_DebtInstrumentPercentageRedeemableRedemptionDateAdditional
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
             
Debt Instrument, Percentage Of Redemption Price Redemption Date, Additional 35.00%mdca_DebtInstrumentPercentageOfRedemptionPriceRedemptionDateAdditional
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
             
Debt Instrument, Percentage Of Redemption Price, Change In Ownership Control 101.00%mdca_DebtInstrumentPercentageOfRedemptionPriceChangeInOwnershipControl
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesMember
             
11% Notes                
Debt [Line Items]                
Debt instrument, stated interest rate     11.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mdca_ElevenPercentageNotesMember
         
Loss on redemption of notes       55,588,000us-gaap_GainLossOnRepurchaseOfDebtInstrument
/ us-gaap_DebtInstrumentAxis
= mdca_ElevenPercentageNotesMember
       
6.75% Notes issued in November 2013                
Debt [Line Items]                
Debt instrument, stated interest rate         6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinNovemberTwoThousandThirteenMember
     
Additional borrowing face amount         110,000,000mdca_DebtInstrumentadditionalborrowingfaceamount
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinNovemberTwoThousandThirteenMember
     
Proceeds from Offering         111,925,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinNovemberTwoThousandThirteenMember
     
Debt Instrument, Unamortized Premium         4,125,000us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinNovemberTwoThousandThirteenMember
     
Expense Related to Distribution or Servicing and Underwriting Fees         2,200,000us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinNovemberTwoThousandThirteenMember
     
6.75% Notes Issued in April 2014                
Debt [Line Items]                
Debt instrument, stated interest rate           6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinAprilTwoThousandFourteenMember
   
Additional borrowing face amount           75,000,000mdca_DebtInstrumentadditionalborrowingfaceamount
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinAprilTwoThousandFourteenMember
   
Proceeds from Offering           77,452,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinAprilTwoThousandFourteenMember
   
Debt Instrument, Unamortized Premium           3,938,000us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinAprilTwoThousandFourteenMember
   
Expense Related to Distribution or Servicing and Underwriting Fees           1,500,000us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees
/ us-gaap_DebtInstrumentAxis
= mdca_SixPointSevenFivePercentageNotesIssuedinAprilTwoThousandFourteenMember
   
Wells Fargo Capital Finance, LLC                
Debt [Line Items]                
Line of Credit Facility, Increase (Decrease), Net             100,000,000us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
 
Long-term Line of Credit     225,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
         
Debt Instrument, Maturity Date             Sep. 30, 2019  
Debt Instrument, Face Amount             $ 325,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
 
Line of Credit Facility, Description     Dec. 31, 2018          
Wells Fargo Capital Finance, LLC | Base Rate                
Debt [Line Items]                
Debt instrument, stated interest rate 1.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
          1.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
 
Wells Fargo Capital Finance, LLC | London Interbank Offered Rate (LIBOR)                
Debt [Line Items]                
Debt instrument, stated interest rate 1.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
          1.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= mdca_WellsFargoCapitalFinanceLlcMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember