CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 17,612	$ 119,767
Accounts receivable, less allowance for doubtful accounts of $1,436 and $1,409	453,362	355,295
Expenditures billable to clients	45,854	40,202
Other current assets	48,892	36,978
Total Current Assets	565,720	552,242
Fixed assets, at cost, less accumulated depreciation of $97,271 and $95,083	59,598	60,240
Investment in non-consolidated affiliates	8,888	6,110
Goodwill	838,857	851,373
Other intangibles assets, net	77,365	86,121
Deferred tax asset	23,570	18,758
Other assets	66,127	74,046
Total Assets	1,640,125	1,648,890
Current Liabilities:
Accounts payable	251,892	316,285
Accruals and other liabilities	324,021	271,273
Advance billings	173,104	142,608
Current portion of long-term debt	532	534
Current portion of deferred acquisition consideration	100,131	90,804
Total Current Liabilities	849,680	821,504
Long-term debt, less current portion	761,799	742,593
Long-term portion of deferred acquisition consideration	100,673	114,564
Other liabilities	45,814	45,861
Deferred tax liabilities	78,740	77,997
Total Liabilities	1,836,706	1,802,519
Redeemable Noncontrolling Interests (Note 2)	202,338	194,951
Commitments, contingencies and guarantees (Note 11)
Shareholders’ Deficit:
Charges in excess of capital	(229,622)	(209,668)
Accumulated deficit	(521,724)	(489,633)
Accumulated other comprehensive loss	(40)	(7,752)
MDC Partners Inc. Shareholders' Deficit	(482,564)	(441,235)
Noncontrolling Interests	83,645	92,655
Total Shareholders' Deficit	(398,919)	(348,580)
Total Liabilities, Redeemable Noncontrolling Interests and Shareholders’ Deficit	1,640,125	1,648,890
Common Class A
Shareholders’ Deficit:
Class A Shares, no par value, unlimited authorized, 49,846,285 and 49,680,109 shares issued and outstanding in 2015 and 2014	268,821	265,817
Class B Shares, no par value, unlimited authorized, 3,755 shares issued and outstanding in 2015 and 2014, each convertible into one Class A share	268,821	265,817
Common Class B
Shareholders’ Deficit:
Class A Shares, no par value, unlimited authorized, 49,846,285 and 49,680,109 shares issued and outstanding in 2015 and 2014	1	1
Class B Shares, no par value, unlimited authorized, 3,755 shares issued and outstanding in 2015 and 2014, each convertible into one Class A share	$ 1	$ 1