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Noncontrolling and Redeemable Noncontrolling Interests (Tables) | 12 Months Ended
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Dec. 31, 2020
Noncontrolling Interest [Abstract] |
Change In Noncontrolling Interest [Table Text Block] | Changes in amounts due to noncontrolling interest holders included in Accruals and other liabilities on the Consolidated Balance Sheets for the twelve months ended December 31, 2020 and 2019 were as follows:
| Noncontrolling Interests
Balance, December 31, 2018 | $ | 9,278 |
Income attributable to noncontrolling interests | 16,156 |
Distributions made | (11,392) |
Other | (14) |
Balance, December 31, 2019 | $ | 14,028 |
Income attributable to noncontrolling interests | 21,774 |
Distributions made | (15,192) |
Other | 94 |
Balance, December 31, 2020 | $ | 20,704 |
Noncontrolling Interest [Table Text Block] | Changes in the Company’s ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, were as follows:
|  | Years Ended December 31,
|  | 2020 |  | 2019 |  | 2018
Net loss attributable to MDC Partners Inc. |  | $ | (228,971) |  |  | $ | (5,253) |  |  | $ | (130,007) |
Transfers from the noncontrolling interest: |  |  |  |  |  |
Increase in MDC Partners Inc. paid-in capital for purchase of redeemable noncontrolling interests and noncontrolling interests |  | 1,626 |  |  | 1,911 |  |  | 10,140 |
Net transfers from noncontrolling interests |  | $ | 1,626 |  |  | $ | 1,911 |  |  | $ | 10,140 |
Change from net loss attributable to MDC Partners Inc. and transfers to noncontrolling interests |  | $ | (227,345) |  |  | $ | (3,342) |  |  | $ | (119,867) |
Redeemable Noncontrolling Interest [Table Text Block] | The following table presents changes in redeemable noncontrolling interests as of December 31, 2020 and 2019:
| Years Ended December 31,
| 2020 |  | 2019
Beginning Balance | $ | 36,973 |  |  | $ | 51,546 |
Redemptions | (12,289) |  |  | (14,530) |
Granted | — |  |  | — |
Changes in redemption value | 2,800 |  |  | (3,163) |
Currency translation adjustments | (347) |  |  | 3 |
Other | — |  |  | 3,117 |
Ending Balance | $ | 27,137 |  |  | $ | 36,973 |

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- Definition Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity. + References No definition available. + Details
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