XML 99 R86.htm IDEA: XBRL DOCUMENT v3.23.1
OPERATING SEGMENT INFORMATION (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2022
USD ($)
Sep. 30, 2022
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Sep. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Segment Reporting [Abstract]                      
Number of reportable operating segments | segment                 2    
Segment Reporting Information [Line Items]                      
Total revenue                 $ 819,760 $ 844,957 $ 843,795
Total segment adjusted gross profit                 435,106 485,000 495,982
Stock-based compensation expense                 (2,628) (1,997) (875)
Amortization of acquired technology                 (31,542) (38,343) (42,290)
Acquisition-related inventory and facilities adjustments                 0 0 (2,000)
Gross profit $ 114,013 $ 104,318 $ 104,550 $ 78,055 $ 114,793 $ 110,654 $ 118,727 $ 100,486 400,936 444,660 450,817
Segment depreciation expense:                      
Total depreciation expense                 15,295 16,962 17,188
Cloud and Edge                      
Segment Reporting Information [Line Items]                      
Total revenue                 508,137 556,656 583,270
Total segment adjusted gross profit                 330,395 370,504 385,137
Segment depreciation expense:                      
Total depreciation expense                 10,758 12,269 12,111
IP Optical Networks                      
Segment Reporting Information [Line Items]                      
Total revenue                 311,623 288,301 260,525
Total segment adjusted gross profit                 104,711 114,496 110,845
Segment depreciation expense:                      
Total depreciation expense                 $ 4,537 $ 4,693 $ 5,077