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Acquisitions (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Net income (loss) attributable to MDC Partners Inc. | $ (8,604) | $ (4,922) | $ (11,135) | $ 2,702
Increase Decrease in Redeemable and Non Redeemable Non Controlling Interest from Step up Transactions |  |  | (49,154) |
Transfers to (from) the noncontrolling interest: |  |  |  |
Net transfers to (from) noncontrolling interests | (7,247) | 109 | (40,446) | (6,129)
Change from net income (loss) attributable to MDC Partners Inc. and transfers to noncontrolling interests | (15,851) | (4,813) | (51,581) | (3,427)
Additional Paid-in Capital [Member] |  |  |  |
Net income (loss) attributable to MDC Partners Inc. |  |  | 0 |
Increase Decrease in Redeemable and Non Redeemable Non Controlling Interest from Step up Transactions |  |  | (40,446) |
Parent [Member] |  |  |  |
Net income (loss) attributable to MDC Partners Inc. |  |  | (11,135) |
Increase Decrease in Redeemable and Non Redeemable Non Controlling Interest from Step up Transactions | $ (7,247) | $ 109 | $ (40,446) | $ (6,129)

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