Acquisitions (Tables)
 12 Months Ended
Dec. 31, 2013
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, 2013 were as follows:

Net Loss Attributable to MDC Partners Inc. and
Transfers (to) from the Noncontrolling Interest

 
 
 
 
 
Year Ended December 31,
  
 
2013
 
2012
 
2011
Net Loss attributable to MDC Partners Inc.
 
$
(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
 
 
—
 
 
 
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
 
 
 
—
 
Increase (Decrease) in MDC Partners Inc. paid in capital from issuance of equity interests
 
 
—
 
 
 
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
)