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Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2012
Business Combinations [Abstract] |
Schedule of Net Income (Loss) Attributable to Parent and Transfers to and from Noncontrolling Interest [Table Text Block] | Changes in the Company’s ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, 2012 were as follows: # Net Loss Attributable to MDC Partners Inc. and Transfers (to) from the Noncontrolling Interest
|  | Year Ended December 31,
|  | 2012 |  | 2011 |  | 2010
Net Loss attributable to MDC Partners Inc. |  | $ | (85,439 | ) |  | $ | (84,674 | ) |  | $ | (15,440 | )
Transfers (to) from the noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of Redeemable Noncontrolling Interests |  |  | 743 |  |  |  | (6,328 | ) |  |  | (7,761 | )
Increase in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of noncontrolling interests. |  |  | 12,410 |  |  |  | — |  |  |  | — |
Increase (Decrease) in MDC Partners Inc. paid in capital from issuance of equity interests |  |  | 767 |  |  |  | (1,147 | ) |  |  | 158 |
Net transfers from (to) noncontrolling interest |  | $ | 13,920 |  |  | $ | (7,475 | ) |  | $ | (7,603 | )
Change from net loss attributable to MDC Partners Inc. and transfers from (to) noncontrolling interest |  | $ | (71,519 | ) |  | $ | (92,149 | ) |  | $ | (23,043 | )

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- Definition Tabular disclosure of the net income loss attributable to parent and the transfers to and from noncontrolling interest. + References No definition available. + Details
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