CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Comprehensive loss:
Net loss	$ (19,290)	$ (13,184)	$ (50,132)	$ (55,732)
Other comprehensive income (loss):
Foreign currency translation adjustment	757	3,208	(857)	3,735
Comprehensive loss	(18,533)	(9,976)	(50,989)	(51,997)
Comprehensive loss attributable to noncontrolling interest	(1,929)	(1,312)	(4,404)	(4,420)
Comprehensive loss attributable to MDC Partners Inc.	$ (20,462)	$ (11,288)	$ (55,393)	$ (56,417)