Goodwill (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the year ended December 31, 2024 and December 31, 2023 are as follows:

(In thousands)	Network Solutions (Restated)			Services & Support			Total (Restated)
As of December 31, 2022 (as previously reported)	$	298,280		$	83,444		$	381,724
Correction of goodwill from business combination with Adtran Networks		4,735			—			4,735
As of December 31, 2022 (restated)	$	303,015		$	83,444		$	386,459
Goodwill impairment		—			(37,500	)		(37,500	)
Correction of a purchase allocation adjustment		(9,662	)		9,662			—
Foreign currency translation adjustments		8,413			778			9,191
As of December 31, 2023 (restated)	$	301,766		$	56,384		$	358,150
Goodwill impairment		(295,298	)		—			(295,298	)
Foreign currency translation adjustments		(6,468	)		(3,466	)		(9,934	)
As of December 31, 2024 (restated)	$	—		$	52,918		$	52,918