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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share | The following table shows the computation of basic and diluted EPS for the three and nine months ended September 30, 2025 and 2024, respectively:
| Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
| 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Numerator: |  |  |  |  |  |  |  |  |  |  |
Net income attributable to ACIC common stockholders | $ | 32,483 |  |  | $ | 28,119 |  |  | $ | 80,273 |  |  | $ | 70,772 |
Denominator: |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares outstanding |  | 48,664,597 |  |  |  | 48,066,358 |  |  |  | 48,413,364 |  |  |  | 47,742,744 |
Effect of dilutive securities |  | 1,253,132 |  |  |  | 1,454,888 |  |  |  | 1,300,171 |  |  |  | 1,512,327 |
Weighted-average diluted shares |  | 49,917,729 |  |  |  | 49,521,246 |  |  |  | 49,713,535 |  |  |  | 49,255,071 |
Earnings available to ACIC common stockholders per share |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 0.67 |  |  | $ | 0.59 |  |  | $ | 1.66 |  |  | $ | 1.49 |
Diluted | $ | 0.65 |  |  | $ | 0.57 |  |  | $ | 1.61 |  |  | $ | 1.44 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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