Condensed Consolidated Statements of Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Revenue
Total Revenue		$ 323,912	$ 154,518
Cost of Revenue
Total Cost of Revenue		236,104	100,202
Gross Profit		87,808	54,316
Selling, general and administrative expenses		67,397	27,893
Research and development expenses		70,143	26,491
Operating Loss		(49,732)	(68)
Interest and dividend income		304	204
Interest expense		(3,287)	(30)
Net investment gain (loss)		1,252	(3,415)
Other expense, net		(303)	(226)
Loss Before Income Taxes		(51,766)	(3,535)
Income tax benefit		11,313	2,408
Net Loss		(40,453)	(1,127)
Less: Net Loss attributable to non-controlling interest	[1]	(5,989)
Net Loss attributable to ADTRAN Holdings, Inc.		$ (34,464)	$ (1,127)
Weighted average shares outstanding – basic		78,358	49,113
Weighted average shares outstanding – diluted		78,358	49,113
Loss per common share attributable to ADTRAN Holdings, Inc. - basic		$ (0.44)	$ (0.02)
Loss per common share attributable to ADTRAN Holdings, Inc. - diluted		$ (0.44)	$ (0.02)
Network Solutions [Member]
Revenue
Total Revenue		$ 282,418	$ 138,374
Cost of Revenue
Total Cost of Revenue		219,130	90,653
Gross Profit		63,288	47,721
Services & Support [Member]
Revenue
Total Revenue		41,494	16,144
Cost of Revenue
Total Cost of Revenue		16,974	9,549
Gross Profit		$ 24,520	$ 6,595

[1] Includes $3.2 million of net loss attributable to non-controlling interests pre-DPLTA and $2.8 million of annual recurring compensation earned by redeemable non-controlling interests and accrued by the Company post-DPLTA.