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v3.25.2

OPERATING SEGMENT INFORMATION (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) segment | Jun. 30, 2024 USD ($)
OPERATING SEGMENT INFORMATION |  |  |  |
Number of operating segments | segment |  |  | 2 |
Number of reportable segments | segment |  |  | 2 |
Revenue | $ 220,583 | $ 192,620 | $ 401,862 | $ 372,284
Gross profit | 109,307 | 97,867 | 191,677 | 189,822
Research and development expense | 44,696 | 43,489 | 88,264 | 89,252
Sales and marketing expense | 32,536 | 32,984 | 64,324 | 67,700
General and administrative expense | 16,630 | 14,901 | 31,758 | 30,092
Amortization of acquired intangible assets | 5,975 | 6,508 | 12,130 | 13,214
Acquisition-, disposal- and integration-related | 3,898 |  | 3,898 |
Restructuring and related | 1,346 | 1,920 | 6,687 | 4,985
Interest expense, net | 10,977 | 3,879 | 21,477 | 9,866
Other (expense) income, net | 2,159 | 9,503 | (970) | 17,016
Loss before income taxes | (8,910) | (15,317) | (35,891) | (42,303)
Segment depreciation expense: |  |  |  |
Depreciation expense | 4,288 | 3,376 | 7,757 | 6,770
Operating segment |  |  |  |
OPERATING SEGMENT INFORMATION |  |  |  |
Revenue | 220,583 | 192,620 | 401,862 | 372,284
Total segment adjusted gross profit | 114,815 | 104,737 | 202,925 | 203,821
Reconciling items |  |  |  |
OPERATING SEGMENT INFORMATION |  |  |  |
Stock-based compensation expense | (231) | (338) | (583) | (916)
Amortization of acquired technology | (5,277) | (6,532) | (10,665) | (13,083)
Cloud and Edge |  |  |  |
Segment depreciation expense: |  |  |  |
Depreciation expense | 2,399 | 2,324 | 4,752 | 4,657
Cloud and Edge | Operating segment |  |  |  |
OPERATING SEGMENT INFORMATION |  |  |  |
Revenue | 137,048 | 110,555 | 244,639 | 212,224
Total segment adjusted gross profit | 84,854 | 72,946 | 152,150 | 140,065
IP Optical Networks |  |  |  |
Segment depreciation expense: |  |  |  |
Depreciation expense | 1,889 | 1,052 | 3,005 | 2,113
IP Optical Networks | Operating segment |  |  |  |
OPERATING SEGMENT INFORMATION |  |  |  |
Revenue | 83,535 | 82,065 | 157,223 | 160,060
Total segment adjusted gross profit | $ 29,961 | $ 31,791 | $ 50,775 | $ 63,756

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