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Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 390,442,000 | $ 349,254,000 | $ 337,047,000 | $ 309,042,000 | $ 359,013,000 | $ 328,415,000 | $ 336,606,000 | $ 302,222,000 | $ 1,385,785,000 | $ 1,326,256,000 | $ 1,223,512,000
Cost of services sold | 260,193,000 | 235,659,000 | 228,835,000 | 211,446,000 | 231,330,000 | 212,925,000 | 225,042,000 | 210,419,000 | 936,133,000 | 879,716,000 | 798,518,000
Office and general expenses |  |  |  |  |  |  |  |  | 306,251,000 | 322,207,000 | 290,073,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 46,446,000 | 52,223,000 | 47,172,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 48,524,000 | 0 | 0
Operating income |  |  |  |  |  |  |  |  | 48,431,000 | 72,110,000 | 87,749,000
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Other income, net |  |  |  |  |  |  |  |  | 414,000 | 7,238,000 | 689,000
Foreign Currency Transaction Gain (Loss), before Tax | 10,081 |  |  |  | 9,531 |  |  |  | (213,000) | (39,328,000) | (18,482,000)
Interest expense, finance charges, and loss on redemption of notes, net |  |  |  |  |  |  |  |  | 98,348,000 | 57,436,000 | 54,847,000
Income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates |  |  |  |  |  |  |  |  | (49,716,000) | (17,416,000) | 15,109,000
Income tax benefit |  |  |  |  |  |  |  |  | 9,404,000 | (3,761,000) | (9,776,000)
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates |  |  |  |  |  |  |  |  | (40,312,000) | (21,177,000) | 5,333,000
Equity in losses of non-consolidated affiliates |  |  |  |  |  |  |  |  | (309,000) | 1,058,000 | 1,406,000
Income (loss) from continuing operations | 11,143,000 | (31,081,000) | 2,089,000 | (22,772,000) | (24,036,000) | (4,690,000) | 31,548,000 | (22,941,000) | (40,621,000) | (20,119,000) | 6,739,000
Loss from discontinued operations attributable to MDC Partners Inc., net of taxes |  |  |  |  |  |  |  |  | 0 | (6,281,000) | (21,260,000)
Net loss attributable to MDC Partners Inc. |  |  |  |  |  |  |  |  | (40,621,000) | (26,400,000) | (14,521,000)
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 29,432,000 | 23,575,000 | 26,416,000
Intangible Assets, Net (Including Goodwill) | 929,830,000 |  |  |  | 942,683,000 |  |  |  | 929,830,000 | 942,683,000 |
Total assets | 1,577,378,000 |  |  |  | 1,577,625,000 |  |  |  | 1,577,378,000 | 1,577,625,000 |
Net Income (Loss) Attributable to Noncontrolling Interest |  |  |  |  |  |  |  |  | (5,218,000) | (9,054,000) | (6,890,000)
Net loss attributable to MDC Partners Inc. | 9,097,000 | $ (32,140,000) | $ 835,000 | $ (23,631,000) | (25,747,000) | $ (8,128,000) | $ 30,036,000 | $ (31,615,000) | (45,839,000) | (35,454,000) | (21,411,000)
Share-based Compensation | $ 5,560 |  |  |  | $ 4,771 |  |  |  | 21,003,000 | 17,796,000 | 17,696,000
Global Integrated Agencies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 696,410,000 | 652,987,000 | 600,150,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 21,447,000 | 20,599,000 | 17,410,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 0 |  |
Operating income |  |  |  |  |  |  |  |  | 58,505,000 | 66,161,000 | 67,290,000
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 16,439,000 | 17,043,000 | 19,669,000
Share-based Compensation |  |  |  |  |  |  |  |  | 12,141,000 | 6,981,000 | 5,043,000
All Other [Domain] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 29,631,000 |  |
Domestic Creative Agencies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 85,953,000 | 91,658,000 | 83,196,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,653,000 | 1,855,000 | 1,809,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 0 |  |
Operating income |  |  |  |  |  |  |  |  | 16,583,000 | 17,535,000 | 14,266,000
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 1,055,000 | 1,321,000 | 818,000
Share-based Compensation |  |  |  |  |  |  |  |  | 634,000 | 644,000 | 394,000
Specialist Communications [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 170,285,000 | 153,920,000 | 124,938,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 6,637,000 | 11,201,000 | 8,272,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 18,893,000 |  |
Operating income |  |  |  |  |  |  |  |  | 1,939,000 | 18,047,000 | 16,242,000
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 2,741,000 | 1,311,000 | 632,000
Share-based Compensation |  |  |  |  |  |  |  |  | 3,629,000 | 1,510,000 | 2,050,000
Media Services [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 131,498,000 | 132,419,000 | 120,852,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 5,718,000 | 4,660,000 | 6,113,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 0 |  |
Operating income |  |  |  |  |  |  |  |  | 6,154,000 | 20,116,000 | 29,706,000
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 5,110,000 | 825,000 | 475,000
Share-based Compensation |  |  |  |  |  |  |  |  | 301,000 | 471,000 | 918,000
All Other [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 301,639,000 | 295,272,000 | 294,376,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 9,406,000 | 12,134,000 | 11,783,000
Operating income |  |  |  |  |  |  |  |  | 9,368,000 | 15,423,000 | 28,322,000
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 4,054,000 | 2,704,000 | 3,485,000
Share-based Compensation |  |  |  |  |  |  |  |  | 1,773,000 | 5,450,000 | 3,628,000
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,585,000 | 1,774,000 | 1,785,000
Operating income |  |  |  |  |  |  |  |  | (44,118,000) | (65,172,000) | (68,077,000)
Other Income (Expense): |  |  |  |  |  |  |  |  |  |  |
Capital expenditures from continuing operations |  |  |  |  |  |  |  |  | 33,000 | 371,000 | 1,337,000
Share-based Compensation |  |  |  |  |  |  |  |  | $ 2,525,000 | $ 2,740,000 | $ 5,663,000

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