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Significant Accounting Policies (Details Textual) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Sep. 30, 2014 | Dec. 31, 2014 | Mar. 28, 2012
Significant Accounting Policies [Line Items] |  |  |  |  |
Interest Rate Percentage On Senior Notes | 6.75%mdca_InterestRatePercentageOnSeniorNotes |  |  |  |
Put option noncontrolling interest impairment charge | $ 0 mdca_Putoptionnoncontrollinginterestimpairmentcharge |  |  |  |
Restricted Cash and Cash Equivalents | 6,211,000 us-gaap_RestrictedCashAndCashEquivalents |  |  | 6,461,000 us-gaap_RestrictedCashAndCashEquivalents |
Cost Method Investments | 10,420,000 us-gaap_CostMethodInvestments |  |  | 10,196,000 us-gaap_CostMethodInvestments |
Consolidated Accounts Receivable Percentage | 10.00%mdca_ConsolidatedAccountsReceivablePercentage |  |  | 10.00%mdca_ConsolidatedAccountsReceivablePercentage |
Consolidated Largest Client Revenue |  | 10.00%mdca_ConsolidatedLargestClientRevenue | 10.00%mdca_ConsolidatedLargestClientRevenue |  |
Business Acquisition, Increase (Decrease) in Contingent Purchase Price Obligation | 2,248,000 mdca_BusinessAcquisitionIncreaseDecreaseInContingentPurchasePriceObligation | 8,022,000 mdca_BusinessAcquisitionIncreaseDecreaseInContingentPurchasePriceObligation |  |  |
Business Combination, Acquisition Related Costs | 874,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts | 1,071,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts |  |  |
Assets | 1,640,125,000 us-gaap_Assets | 1,570,272,000 us-gaap_Assets |  | 1,648,890,000 us-gaap_Assets |
Liabilities | 1,836,706,000 us-gaap_Liabilities |  |  | 1,802,519,000 us-gaap_Liabilities |
Stock Issued During Period, Shares, Restricted Stock Award, Gross | 0 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross |  |  |  |
Common Class A |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross | 751,618 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |  |
Doner [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  |  |  |  | 30.00%us-gaap_VariableInterestEntityOwnershipPercentage / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mdca_DonerMember
Assets | 154,855,000 us-gaap_Assets / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mdca_DonerMember |  |  | 223,305,000 us-gaap_Assets / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mdca_DonerMember |
Liabilities | $ 125,670,000 us-gaap_Liabilities / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mdca_DonerMember |  |  | $ 192,340,000 us-gaap_Liabilities / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mdca_DonerMember |
Aggregate 2012 Acquisitions [Member] | Doner [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Ownership Interest Percentage Increase On Exercise Of Option |  |  |  |  | 70.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = mdca_Aggregate2012AcquisitionsMember / dei_LegalEntityAxis = mdca_DonerMember
Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |  |
Equity Method Investment, Ownership Percentage | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |
Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Property, Plant and Equipment, Useful Life | 7 years |  |  |  |
Equity Method Investment, Ownership Percentage | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
Real Estate Joint Venture [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Percentage Of Undivided Interest | 30.00%mdca_PercentageOfUndividedInterest / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mdca_RealEstateJointVentureMember |  |  |  |

X
- Definition The change in the estimated value of contingent purchase price obligations that are remeasured and adjusted through operating profit. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition The percentage of accounts receivable that the largest client did not exceed during the period. + References No definition available. + Details
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Namespace Prefix: | mdca_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of revenue over the consolidated revenue that the largest client did not exceed during the period. + References No definition available. + Details
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Period Type: | duration

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- Definition Percentage of interest rate payable on senior notes. + References No definition available. + Details
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Namespace Prefix: | mdca_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition This represents the rate of undivided interest for the reporting period. + References No definition available. + Details
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Namespace Prefix: | mdca_
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Balance Type: | na
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- Definition Put option noncontrolling interest impairment charge + References No definition available. + Details
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Balance Type: | debit
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- Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.18) -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 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + 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 210.5-02.12) -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 325 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=29638308&loc=d3e40346-111594 + Details
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Balance Type: | debit
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + 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 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | credit
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Period Type: | instant

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- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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Balance Type: | na
Period Type: | duration

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- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685 + Details
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- Details
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- Details
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- Details
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