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Acquisitions (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Net Loss attributable to MDC Partners Inc. | $ (94,321) | $ (21,200) | $ 9,816 | $ (43,158) | $ (24,548) | $ (14,497) | $ (20,113) | $ (26,281) | $ (148,863) | $ (85,439) | $ (84,674)
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 |  |  |  |  |  |  |  |  | 0 | 743 | (6,328)
Increase in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of noncontrolling interests |  |  |  |  |  |  |  |  | 11,074 | 12,410 | 0
Increase (Decrease) in MDC Partners Inc. paid in capital from issuance of equity interests |  |  |  |  |  |  |  |  | 0 | 767 | (1,147)
Net transfers from (to) noncontrolling interest |  |  |  |  |  |  |  |  | 11,074 | 13,920 | (7,475)
Change from net loss attributable to MDC Partners Inc. and transfers from (to) noncontrolling interest |  |  |  |  |  |  |  |  | $ (137,789) | $ (71,519) | $ (92,149)

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