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Loss per Share (Tables)

3 Months Ended

Mar. 31, 2025

Earnings Per Share [Abstract]

Summary of Calculation of Basic and Diluted Loss Per Share

The calculation of basic and diluted loss per share is as follows:

		Three Months Ended
		March 31,
(In thousands, except per share amounts)		2025				2024
						(Restated)
Numerator
Net loss attributable to ADTRAN Holdings, Inc.		$	(11,267	)		$	(330,765	)
Effect of redemption of RNCI			(3	)			—
Net loss attributable to ADTRAN Holdings, Inc. common stockholders		$	(11,270	)		$	(330,765	)
Denominator
Weighted average number of shares – basic			79,534				78,814
Effect of dilutive securities
Stock options			—				—
PSUs, RSUs and restricted stock			—				—
Weighted average number of shares – diluted			79,534				78,814
Loss per share attributable to ADTRAN Holdings, Inc. – basic		$	(0.14	)		$	(4.20	)
Loss per share attributable to ADTRAN Holdings, Inc. – diluted		$	(0.14	)		$	(4.20	)

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- References

No definition available.

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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

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