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Redeemable Non-controlling Interest | 3 Months Ended
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Mar. 31, 2025
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract] |
Redeemable Non-controlling Interest | 13. REDEEMABLE NON-CONTROLLING INTEREST As of March 31, 2025 and December 31, 2024, the non-controlling Adtran Networks stockholders’ equity ownership percentage in Adtran Networks was approximately 33.0%. The following table summarizes the redeemable non-controlling interest activity for the three months ended March 31, 2025 and for the year ended December 31, 2024:
|  | Three Months Ended |  |  | For the Year Ended |  |
(In thousands) |  | March 31, 2025 |  |  | December 31, 2024 |  |
Balance at beginning of period |  | $ | 422,943 |  | (1) | $ | 443,327 |  |
Redemption of redeemable non-controlling interest |  |  | (9 | ) |  |  | (20,384 | ) |
Net income attributable to redeemable non-controlling interests |  |  | 2,319 |  |  |  | 9,824 |  |
Annual recurring compensation earned |  |  | (2,319 | ) |  |  | (9,824 | ) |
Balance at end of period |  | $ | 422,934 |  |  | $ | 422,943 |  |
(1) During the third quarter of 2024, the Company identified errors primarily impacting the carrying values of the redeemable non-controlling interest, retained deficit, the net income attributable to the non-controlling interest and the net loss attributable to the Company and, as a consequence, of the loss per common share attributable to the Company. Annual recurring compensation payable on untendered outstanding shares under the DPLTA must be recognized as it is accrued. For the three months ended March 31, 2025, we accrued $2.4 million and for the year ended December 31, 2024, the Company accrued $9.8 million, representing the portion of the annual recurring cash compensation to the non-controlling shareholders du ring such periods. The 2024 Annual Recurring Compensation accrual will be paid after the ordinary general shareholders' meeting of Adtran Networks in 2025. The 2025 Annual Recurring Compensation accrual will be paid after the ordinary general shareholders' meeting of Adtran Networks in 2026.

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