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Acquisitions (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Net income (loss) attributable to MDC Partners Inc. | $ 9,816 | $ (20,114) | $ (33,342) | $ (46,395)
Transfers to the noncontrolling interest: |  |  |  |
Increase (decrease) in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of Redeemable Noncontrolling Interests | 0 | (1,977) | 0 | (3,240)
Increase (decrease) in MDC Partners Inc. paid-in capital from issuance of equity interest | 10,875 | 0 | 9,816 | 0
Net transfers from noncontrolling interest | 10,875 | (1,977) | 9,816 | (3,240)
Change from net income (loss) attributable to MDC Partners Inc. and transfers to noncontrolling interest | $ 20,691 | $ (22,091) | $ (23,526) | $ (49,635)

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