Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands |
Total |
Adtran Networks SE [Member] |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Additional Paid-in Capital [Member]
Adtran Networks SE [Member]
|
Retained Deficit Earnings [Member] |
Treasury Stock [Member] |
Accumulated Other Comprehensive Income [Member] |
Non-controlling Interest [Member] |
Beginning Balance at Dec. 31, 2022 |
$ 1,303,613
|
|
$ 781
|
$ 895,834
|
|
$ 55,338
|
$ (4,125)
|
$ 26,126
|
$ 329,659
|
Beginning Balance, Shares at Dec. 31, 2022 |
|
|
78,088
|
|
|
|
|
|
|
Net (loss) income |
(40,453)
|
|
|
|
|
(37,274)
|
|
|
(3,179)
|
Annual recurring compensation earned |
(2,464)
|
|
|
|
|
(2,464)
|
|
|
|
Reclassification and remeasurement from equity to mezzanine equity for non-controlling interests in Adtran Networks |
(443,757)
|
|
|
(116,895)
|
|
|
|
|
(326,862)
|
Other comprehensive income (loss), net of tax |
8,783
|
|
|
|
|
|
|
8,401
|
382
|
Dividend payments to ADTRAN Holdings, Inc. shareholders ($0.09 per share) |
(7,076)
|
|
|
|
|
(7,076)
|
|
|
|
Deferred compensation adjustments, net of tax |
(1,792)
|
|
|
|
|
|
(1,792)
|
|
|
ADTRAN RSUs and restricted stock vested |
(138)
|
|
$ 6
|
|
|
(144)
|
|
|
|
ADTRAN RSUs and restricted stock vested, Shares |
|
|
561
|
|
|
|
|
|
|
ADTRAN Stock options exercised |
58
|
|
|
|
|
58
|
|
|
|
ADTRAN Stock options exercised, Shares |
|
|
6
|
|
|
|
|
|
|
ADTRAN Stock-based compensation expense |
3,812
|
$ 9
|
|
3,812
|
$ 9
|
|
|
|
|
Redemption of redeemable non-controlling interest |
343
|
|
|
|
|
343
|
|
|
|
Ending Balance at Mar. 31, 2023 |
820,938
|
|
$ 787
|
782,760
|
|
8,781
|
(5,917)
|
34,527
|
|
Ending Balance, Shares at Mar. 31, 2023 |
|
|
78,655
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2022 |
1,303,613
|
|
$ 781
|
895,834
|
|
55,338
|
(4,125)
|
26,126
|
329,659
|
Beginning Balance, Shares at Dec. 31, 2022 |
|
|
78,088
|
|
|
|
|
|
|
Other comprehensive income (loss), net of tax |
15,741
|
|
|
|
|
|
|
|
|
Ending Balance at Jun. 30, 2023 |
786,409
|
|
$ 787
|
787,153
|
|
(37,073)
|
(5,943)
|
41,485
|
|
Ending Balance, Shares at Jun. 30, 2023 |
|
|
78,661
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2022 |
1,303,613
|
|
$ 781
|
895,834
|
|
55,338
|
(4,125)
|
26,126
|
329,659
|
Beginning Balance, Shares at Dec. 31, 2022 |
|
|
78,088
|
|
|
|
|
|
|
Other comprehensive income (loss), net of tax |
(13,666)
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2023 |
675,651
|
|
$ 787
|
791,290
|
|
(122,534)
|
(5,970)
|
12,078
|
|
Ending Balance, Shares at Sep. 30, 2023 |
|
|
78,688
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2022 |
1,303,613
|
|
$ 781
|
895,834
|
|
55,338
|
(4,125)
|
26,126
|
$ 329,659
|
Beginning Balance, Shares at Dec. 31, 2022 |
|
|
78,088
|
|
|
|
|
|
|
Other comprehensive income (loss), net of tax |
21,721
|
|
|
|
|
|
|
21,339
|
|
Ending Balance at Dec. 31, 2023 |
$ 604,829
|
|
$ 790
|
795,304
|
|
(232,905)
|
(5,825)
|
47,465
|
|
Ending Balance, Shares at Dec. 31, 2023 |
78,970
|
|
78,970
|
|
|
|
|
|
|
Beginning Balance at Mar. 31, 2023 |
$ 820,938
|
|
$ 787
|
782,760
|
|
8,781
|
(5,917)
|
34,527
|
|
Beginning Balance, Shares at Mar. 31, 2023 |
|
|
78,655
|
|
|
|
|
|
|
Net (loss) income |
(36,215)
|
|
|
|
|
(36,215)
|
|
|
|
Annual recurring compensation earned |
(2,534)
|
|
|
|
|
(2,534)
|
|
|
|
Other comprehensive income (loss), net of tax |
6,958
|
|
|
|
|
|
|
6,958
|
|
Dividend payments to ADTRAN Holdings, Inc. shareholders ($0.09 per share) |
(7,076)
|
|
|
|
|
(7,076)
|
|
|
|
Dividends accrued for RSUs |
9
|
|
|
|
|
9
|
|
|
|
Deferred compensation adjustments, net of tax |
(26)
|
|
|
|
|
|
(26)
|
|
|
ADTRAN RSUs and restricted stock vested |
(44)
|
|
|
|
|
(44)
|
|
|
|
ADTRAN RSUs and restricted stock vested, Shares |
|
|
6
|
|
|
|
|
|
|
ADTRAN Stock options exercised |
|
92
|
|
|
92
|
|
|
|
|
ADTRAN Stock-based compensation expense |
4,291
|
10
|
|
4,291
|
10
|
|
|
|
|
Redemption of redeemable non-controlling interest |
6
|
|
|
|
|
6
|
|
|
|
Ending Balance at Jun. 30, 2023 |
786,409
|
|
$ 787
|
787,153
|
|
(37,073)
|
(5,943)
|
41,485
|
|
Ending Balance, Shares at Jun. 30, 2023 |
|
|
78,661
|
|
|
|
|
|
|
Net (loss) income |
(75,649)
|
|
|
|
|
(75,649)
|
|
|
|
Annual recurring compensation earned |
(2,561)
|
|
|
|
|
(2,561)
|
|
|
|
Other comprehensive income (loss), net of tax |
(29,407)
|
|
|
|
|
|
|
(29,407)
|
|
Dividend payments to ADTRAN Holdings, Inc. shareholders ($0.09 per share) |
(7,085)
|
|
|
|
|
(7,085)
|
|
|
|
Dividends accrued for RSUs |
(8)
|
|
|
|
|
(8)
|
|
|
|
Deferred compensation adjustments, net of tax |
(27)
|
|
|
|
|
|
(27)
|
|
|
ADTRAN RSUs and restricted stock vested |
(175)
|
|
|
|
|
(175)
|
|
|
|
ADTRAN RSUs and restricted stock vested, Shares |
|
|
25
|
|
|
|
|
|
|
ADTRAN Stock options exercised |
15
|
|
|
|
8
|
15
|
|
|
|
ADTRAN Stock options exercised, Shares |
|
|
2
|
|
|
|
|
|
|
ADTRAN Stock-based compensation expense |
4,126
|
|
|
4,126
|
3
|
|
|
|
|
Redemption of redeemable non-controlling interest |
2
|
|
|
|
|
2
|
|
|
|
Ending Balance at Sep. 30, 2023 |
675,651
|
|
$ 787
|
791,290
|
|
(122,534)
|
(5,970)
|
12,078
|
|
Ending Balance, Shares at Sep. 30, 2023 |
|
|
78,688
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2023 |
$ 604,829
|
|
$ 790
|
795,304
|
|
(232,905)
|
(5,825)
|
47,465
|
|
Beginning Balance, Shares at Dec. 31, 2023 |
78,970
|
|
78,970
|
|
|
|
|
|
|
Net (loss) income |
$ (321,670)
|
|
|
|
|
(321,670)
|
|
|
|
Annual recurring compensation earned |
(2,531)
|
|
|
|
|
(2,531)
|
|
|
|
Other comprehensive income (loss), net of tax |
(17,804)
|
|
|
|
|
|
|
(17,804)
|
|
Deferred compensation adjustments, net of tax |
262
|
|
|
(368)
|
|
3
|
627
|
|
|
ADTRAN RSUs and restricted stock vested |
(242)
|
|
$ 1
|
|
|
(243)
|
|
|
|
ADTRAN RSUs and restricted stock vested, Shares |
|
|
110
|
|
|
|
|
|
|
ADTRAN Stock options exercised |
219
|
|
|
|
|
219
|
|
|
|
ADTRAN Stock options exercised, Shares |
|
|
36
|
|
|
|
|
|
|
ADTRAN Stock-based compensation expense |
3,957
|
4
|
|
3,957
|
4
|
|
|
|
|
Redemption of redeemable non-controlling interest |
1
|
|
|
|
|
1
|
|
|
|
Ending Balance at Mar. 31, 2024 |
267,025
|
|
$ 791
|
798,897
|
|
(557,126)
|
(5,198)
|
29,661
|
|
Ending Balance, Shares at Mar. 31, 2024 |
|
|
79,116
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2023 |
$ 604,829
|
|
$ 790
|
795,304
|
|
(232,905)
|
(5,825)
|
47,465
|
|
Beginning Balance, Shares at Dec. 31, 2023 |
78,970
|
|
78,970
|
|
|
|
|
|
|
Other comprehensive income (loss), net of tax |
$ (19,185)
|
|
|
|
|
|
|
|
|
Ending Balance at Jun. 30, 2024 |
219,954
|
|
$ 791
|
802,737
|
|
(606,656)
|
(5,198)
|
28,280
|
|
Ending Balance, Shares at Jun. 30, 2024 |
|
|
79,121
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2023 |
$ 604,829
|
|
$ 790
|
795,304
|
|
(232,905)
|
(5,825)
|
47,465
|
|
Beginning Balance, Shares at Dec. 31, 2023 |
78,970
|
|
78,970
|
|
|
|
|
|
|
Other comprehensive income (loss), net of tax |
$ (88)
|
|
|
|
|
|
|
|
|
ADTRAN Stock options exercised, Shares |
36
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2024 |
$ 213,994
|
|
$ 792
|
806,187
|
|
(635,164)
|
(5,198)
|
47,377
|
|
Ending Balance, Shares at Sep. 30, 2024 |
79,233
|
|
79,233
|
|
|
|
|
|
|
Beginning Balance at Mar. 31, 2024 |
$ 267,025
|
|
$ 791
|
798,897
|
|
(557,126)
|
(5,198)
|
29,661
|
|
Beginning Balance, Shares at Mar. 31, 2024 |
|
|
79,116
|
|
|
|
|
|
|
Net (loss) income |
(47,011)
|
|
|
|
|
(47,011)
|
|
|
|
Annual recurring compensation earned |
(2,504)
|
|
|
|
|
(2,504)
|
|
|
|
Other comprehensive income (loss), net of tax |
(1,381)
|
|
|
|
|
|
|
(1,381)
|
|
Deferred compensation adjustments, net of tax |
(3)
|
|
|
|
|
(3)
|
|
|
|
ADTRAN RSUs and restricted stock vested |
(16)
|
|
|
|
|
(16)
|
|
|
|
ADTRAN RSUs and restricted stock vested, Shares |
|
|
5
|
|
|
|
|
|
|
ADTRAN Stock-based compensation expense |
3,836
|
4
|
|
3,836
|
4
|
|
|
|
|
Redemption of redeemable non-controlling interest |
4
|
|
|
|
|
4
|
|
|
|
Ending Balance at Jun. 30, 2024 |
219,954
|
|
$ 791
|
802,737
|
|
(606,656)
|
(5,198)
|
28,280
|
|
Ending Balance, Shares at Jun. 30, 2024 |
|
|
79,121
|
|
|
|
|
|
|
Net (loss) income |
(28,857)
|
|
|
|
|
(28,857)
|
|
|
|
Annual recurring compensation earned |
(2,382)
|
|
|
|
|
(2,382)
|
|
|
|
Other comprehensive income (loss), net of tax |
19,097
|
|
|
|
|
|
|
19,097
|
|
ADTRAN RSUs and restricted stock vested |
(244)
|
|
$ 1
|
|
|
(245)
|
|
|
|
ADTRAN RSUs and restricted stock vested, Shares |
|
|
112
|
|
|
|
|
|
|
ADTRAN Stock-based compensation expense |
3,623
|
$ 17
|
|
3,623
|
$ 17
|
|
|
|
|
Redemption of redeemable non-controlling interest |
2,976
|
|
|
|
|
2,976
|
|
|
|
Modification of Stock Options |
(190)
|
|
|
(190)
|
|
|
|
|
|
Ending Balance at Sep. 30, 2024 |
$ 213,994
|
|
$ 792
|
$ 806,187
|
|
$ (635,164)
|
$ (5,198)
|
$ 47,377
|
|
Ending Balance, Shares at Sep. 30, 2024 |
79,233
|
|
79,233
|
|
|
|
|
|
|