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CONDENSED STATEMENTS OF SHAREHOLDERS' DEFICIT - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands | Total | Common Stock Common Class A | Common Stock Common Class B | Additional Paid-in Capital | Charges in Excess of Capital | Accumulated Deficit | Accumulated Other Comprehensive Income (Loss) | Parent [Member] | Noncontrolling Interest [Member] | Contingent Consideration, Liability Settlements [Domain] | Contingent Consideration, Liability Settlements [Domain] Parent [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 | $ (487,073) | $ 269,841 | $ 1 | $ 0 | $ (315,261) | $ (526,990) | $ 6,257 | $ (566,152) | $ 79,079 |  |
Balance (in shares) at Dec. 31, 2015 |  | 49,986,705 | 3,754.5 |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to MDC Partners Inc. | (23,293) | $ 0 | $ 0 | 0 | 0 | (23,293) | 0 | (23,293) | 0 |  |
Other Comprehensive income (loss) | (8,825) | 0 | 0 | 0 | 0 | 0 | (10,481) | (10,481) | 1,656 |  |
Issuance of restricted stock | 0 | $ 956 | $ 0 | (956) | 0 | 0 | 0 | 0 | 0 |  |
Stock Issued During Period, Shares, New Issues |  | 227,437 |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  | $ 5,368 |  |  |  |  |  |  |  | $ 5,368 | $ 5,368
Issuance of restricted stock (in shares) |  | 79,278 | 0 |  |  |  |  |  |  |  |
Shares acquired and cancelled | (902) | $ (902) | $ 0 | 0 | 0 | 0 | 0 | (902) | 0 |  |
Shares acquired and cancelled (in shares) |  | (40,267) | 0 |  |  |  |  |  |  |  |
Stock-based compensation | 1,779 | $ 0 | $ 0 | 1,779 | 0 | 0 | 0 | 1,779 | 0 |  |
Changes in redemption value of redeemable noncontrolling interests | 1,423 | 0 | 0 |  | 0 | 0 | 0 |  | 0 |  |
Temporary Equity, Accretion to Redemption Value | (1,423) |  |  | (1,423) |  |  |  | (1,423) |  |  |
Changes in noncontrolling interests and redeemable noncontrolling interest from step-up transactions |  |  |  |  |  |  |  | 0 |  |  |
Dividends paid and to be paid | (10,840) | 0 | 0 | (10,840) | 0 | 0 | 0 | (10,840) | 0 |  |
Transfer to charges in excess of capital | 0 | 0 | 0 | 11,440 | (11,440) | 0 | 0 | 0 | 0 |  |
Balance at Mar. 31, 2016 | $ (525,209) | $ 275,263 | $ 1 | $ 0 | $ (326,701) | $ (550,283) | $ (4,224) | $ (605,944) | $ 80,735 |  |
Balance (in shares) at Mar. 31, 2016 |  | 50,253,153 | 3,755 |  |  |  |  |  |  |  |

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