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