UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 24,999	$ 46,179
Cash held in trusts	47,916	4,632
Accounts receivable, less allowance for doubtful accounts of $2,524 and $2,453	424,202	434,072
Expenditures billable to clients	59,081	31,146
Other current assets	39,323	26,742
Total Current Assets	595,521	542,771
Fixed assets, at cost, less accumulated depreciation of $120,119 and $123,599	91,015	90,306
Investments in non-consolidated affiliates	6,514	6,307
Goodwill	857,140	835,935
Other intangible assets, net	82,465	70,605
Deferred tax assets	125,307	115,325
Other assets	30,635	37,643
Total Assets	1,788,597	1,698,892
Current Liabilities:
Accounts payable	207,983	244,527
Trust liability	47,916	4,632
Accruals and other liabilities	299,660	327,812
Advance billings	184,269	148,133
Current portion of long-term debt	355	313
Current portion of deferred acquisition consideration	32,297	50,213
Total Current Liabilities	772,480	775,630
Long-term debt, less current portion	999,936	882,806
Long-term portion of deferred acquisition consideration	51,410	72,213
Other liabilities	55,478	54,110
Deferred tax liabilities	6,899	6,760
Total Liabilities	1,886,203	1,791,519
Redeemable Noncontrolling Interests (Note 2)	55,730	62,886
Commitments, Contingencies, and Guarantees (Note 13)
Shareholders’ Deficit:
Charges in excess of capital	(314,499)	(314,241)
Accumulated deficit	(367,180)	(340,000)
Total Shareholders' Deficit	(153,336)	(155,513)
Total Liabilities, Redeemable Noncontrolling Interests and Shareholders' Deficit	1,788,597	1,698,892
Common Class A
Shareholders’ Deficit:
Common shares	360,323	352,432
Preferred Stock | Series 4 Convertible Preferred Stock
Shareholders’ Deficit:
Convertible preference shares (liquidation preference $103,379)	90,123	90,220
Total Shareholders' Deficit	90,123	90,220
Accumulated other comprehensive gain (loss)
Shareholders’ Deficit:
Accumulated other comprehensive gain (loss)	481	(1,954)
Total Shareholders' Deficit	481	(1,954)
MDC Partners Inc. Shareholders' Deficit
Shareholders’ Deficit:
MDC Partners Inc. Shareholders' Deficit	(230,752)	(213,543)
Total Shareholders' Deficit	(230,752)	(213,543)
Noncontrolling Interest
Shareholders’ Deficit:
Noncontrolling interests	77,416	58,030
Total Shareholders' Deficit	$ 77,416	$ 58,030