XML 58 R50.htm IDEA: XBRL DOCUMENT
v3.23.3

Loss per share (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2023
Earnings Per Share [Abstract] |
Summary of Calculation of Basic and Diluted Loss Earnings Per Share | The calculation of basic and diluted loss per share is as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
(In thousands, except per share amounts) |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to ADTRAN Holdings, Inc. |  | $ | (72,735 | ) |  | $ | (41,934 | ) |  | $ | (140,533 | ) |  | $ | (40,918 | )
Denominator |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares – basic |  |  | 78,389 |  |  |  | 73,036 |  |  |  | 78,378 |  |  |  | 57,175 |
Effect of dilutive securities |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
PSUs, RSUs and restricted stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Weighted average number of shares – diluted |  |  | 78,389 |  |  |  | 73,036 |  |  |  | 78,378 |  |  |  | 57,175 |
Loss per share attributable to ADTRAN Holdings, Inc. – basic |  | $ | (0.93 | ) |  | $ | (0.57 | ) |  | $ | (1.79 | ) |  | $ | (0.72 | )
Loss per share attributable to ADTRAN Holdings, Inc. – diluted |  | $ | (0.93 | ) |  | $ | (0.57 | ) |  | $ | (1.79 | ) |  | $ | (0.72 | )

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration