CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net loss	$ (50,132)	$ (55,732)
Loss from discontinued operations attributable to MDC Partners Inc., net of taxes	(11,041)	(5,942)
Loss from continuing operations	(39,091)	(49,790)
Adjustments to reconcile net loss from continuing operations to cash provided by operating activities:
Non-cash stock-based compensation	36,690	26,370
Depreciation	14,037	13,770
Amortization of intangibles	14,418	21,845
Amortization of deferred finance charges and debt discount	7,045	1,698
Loss on redemption of notes	50,385	0
Adjustment to deferred acquisition consideration	5,577	20,369
Loss on disposition of assets	0	1
Deferred income taxes (benefits)	(8,736)	4,626
Earnings of non-consolidated affiliates	(196)	(399)
Distributions in excess of carrying value	(3,058)	0
Other non-current assets and liabilities	(8,900)	1,215
Foreign exchange	1,258	1,088
Changes in working capital:
Accounts receivable	(5,106)	(17,476)
Expenditures billable to clients	(11,021)	(10,863)
Prepaid expenses and other current assets	(2,298)	(4,505)
Accounts payable, accruals and other liabilities	39,183	14,044
Advance billings	22,978	(2,641)
Cash flows provided by continuing operating activities	113,165	19,352
Discontinued operations	(7,814)	(3,546)
Net cash provided by operating activities	105,351	15,806
Cash flows from investing activities:
Capital expenditures	(13,976)	(14,279)
Acquisitions, net of cash acquired	(510)	31,106
Proceeds from sale of assets	209	40
Other investments	(2,198)	(1,687)
Profit distributions from affiliates	3,244	542
Cash flows provided by (used in) continuing investing activities	(13,231)	15,722
Discontinued operations	(11)	(1,949)
Net cash provided by (used in) investing activities	(13,242)	13,773
Cash flows from financing activities:
Proceeds from issuance of 6.75% Notes	550,000	0
Repayment of 11% notes	(425,000)	0
Other	561	0
Payments of revolving credit agreement	0	86,488
Acquisition related payments	(111,396)	(56,521)
Repayment of long-term debt	(1,428)	(457)
Purchase of shares	(5,011)	(3,002)
Premium paid on redemption of notes	(50,385)	0
Deferred financing costs	(15,971)	(191)
Distributions to noncontrolling partners	(4,822)	(7,083)
Bank overdrafts	(10,956)	29,210
Payment of dividends	(14,496)	(13,329)
Proceeds from exercise of options	0	28
Net cash provided by (used in) financing activities	(88,904)	35,143
Effect of exchange rate changes on cash and cash equivalents	(223)	(19)
Net increase in cash and cash equivalents	2,982	64,703
Cash and cash equivalents at beginning of period	60,330	8,096
Cash and cash equivalents at end of period	63,312	72,799
Supplemental disclosures:
Cash income taxes paid	555	919
Cash interest paid	18,781	20,833
Non-cash transactions:
Capital leases	203	397
Dividends payable	$ 1,214	$ 853