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Acquisitions (Details Textual) (Aggregate Year to Date Acquisitions [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012
Aggregate Year to Date Acquisitions [Member] |
Significant Acquisitions and Disposals, Description | During 2012, the Company completed a number of transactions. Effective March 28, 2012, MDC invested in Doner Partners LLC ("Doner"). The Company acquired a 30% voting interest and a convertible preferred interest that allows the Company to increase ordinary voting ownership to 70% at MDC's option, at no additional cost to the Company. Doner is a full service integrated creative agency. In addition, the Company acquired a 70% interest in TargetCast LLC ("TargetCast"). TargetCast is a full service media agency that expands our media strategy and activation offerings. The Company acquired a 51% interest in Dotbox LLC ("Dotbox"), and subsequently acquired the remaining 49% of the equity interests in Dotbox.
Business Acquisition, Cost of Acquired Entity, Purchase Price | $ 99,299
Business Acquisition, Cost of Acquired Entity, Cash Paid | 23,471
Business Acquisition, Deferred Acquisition Consideration | 67,812
Business Acquisition, Working Capital Payments | 8,016
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets | 31,968
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 113,404
Redeemable Noncontrolling Interest, Equity, Carrying Amount | 18,501
Business Acquisition Purchase Price Allocation Intangibles and Goodwill Expected Tax Deductible Amount | 145,372
Reduction to Short Term Noncontrolling Interest | 197
Decrease in Redeemable Noncontrolling Interest | 12,523
Step Up Adjustment to Paid in Capital | $ 13,920

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