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Loss per Share | 12 Months Ended
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Dec. 31, 2024
Earnings Per Share [Abstract] |
Loss per Share | Note 19 – Loss per Share The calculations of basic and diluted loss per share for the years ended December 31, 2024, 2023 and 2022 are as follows:
(In thousands, except for per share amounts) |  | 2024 |  |  | 2023 |  |  | 2022 |
Numerator |  |  |  |  |  |  |  |  |
Net loss attributable to ADTRAN Holdings, Inc. |  | $ | (450,872 | ) |  | $ | (266,289 | ) |  | $ | (2,037 | )
Effect of redemption of RNCI |  |  | 2,981 |  |  |  | — |  |  |  | — |
Net loss attributable to ADTRAN Holdings, Inc. common stockholders |  | $ | (447,891 | ) |  | $ | (266,289 | ) |  | $ | (2,037 | )
Denominator |  |  |  |  |  |  |  |  |
Weighted average number of shares – basic |  |  | 78,928 |  |  |  | 78,416 |  |  |  | 62,346 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | — |  |  |  | — |
PSUs, RSUs and restricted stock |  |  | — |  |  |  | — |  |  |  | — |
Weighted average number of shares – diluted |  |  | 78,928 |  |  |  | 78,416 |  |  |  | 62,346 |
Loss per share attributable to ADTRAN Holdings, Inc. – basic |  | $ | (5.67 | ) |  | $ | (3.39 | ) |  | $ | (0.03 | )
Loss per share attributable to ADTRAN Holdings, Inc. – diluted |  | $ | (5.67 | ) |  | $ | (3.39 | ) |  | $ | (0.03 | )
For each of the years ended December 31, 2024, 2023 and 2022, less than 0.8 million, 0.5 million and 0.1 million shares of unvested or unearned, as applicable, PSUs, RSUs and restricted stock were excluded from the calculation of diluted loss per share due to their anti-dilutive effect. For the years ended December 31, 2024, 2023 and 2022, 3.4 million, 1.8 million and 0.2 million stock options, respectively, were outstanding but were not included in the computation of diluted loss per share due to their exercise prices being greater than the average market price of the common shares during the quarter, making them anti-dilutive u nder t he treasury stock method.

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