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Noncontrolling interest - Holdings (Tables) | 6 Months Ended
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Jun. 30, 2020
Noncontrolling Interest [Abstract] |
Schedule of Equity ownership Interests in Holdings | For the six months ended June 30, 2020, APAM’s equity ownership interest in Holdings increased as a result of the following transactions:
| Holdings GP Units | Limited Partnership Units | Total | APAM Ownership %
Balance at December 31, 2019 | 56,429,825 |  | 21,372,029 |  | 77,801,854 |  | 73 | %
2020 Follow-On Offering | 1,802,326 |  | (1,802,326) |  | — |  | 2 | %
Holdings Common Unit Exchanges | 2,349,247 |  | (2,349,247) |  | — |  | 3 | %
Issuance of APAM Restricted Shares(1) | 916,085 |  | — |  | 916,085 |  | — | %
Delivery of Shares Underlying RSUs (1) | 24,233 |  | — |  | 24,233 |  | — | %
Restricted Share Award Net Share Settlement (1) | (126,971) |  | — |  | (126,971) |  | — | %
Forfeitures of Holdings GP Units from Employee Terminations (1) | (40,101) |  | — |  | (40,101) |  | — | %
Balance at June 30, 2020 | 61,354,644 |  | 17,220,456 |  | 78,575,100 |  | 78 | %
(1) The impact of the transaction on APAM’s ownership percentage was less than 1%.
Change in ownership | The reallocation of equity had the following impact on the Unaudited Condensed Consolidated Statements of Financial Condition:
Statement of Financial Condition | For the Six Months Ended June 30, |  |
| 2020 |  | 2019
Additional paid-in capital | $ | (2,089) |  |  | $ | (1,828) |
Noncontrolling interests - Artisan Partners Holdings | 2,118 |  |  | 1,869 |
Accumulated other comprehensive income (loss) | (29) |  |  | (41) |
Net impact to financial condition | $ | — |  |  | $ | — |

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