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v3.23.1

OPERATING SEGMENT INFORMATION (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 USD ($) segment | Mar. 31, 2022 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable segments | segment | 2 |
Segment Reporting Information [Line Items] |  |
Total revenue | $ 186,159 | $ 173,198
Total segment adjusted gross profit | 89,475 | 86,902
Stock-based compensation expense | (684) | (580)
Amortization of acquired technology | (7,389) | (8,267)
Gross profit | 81,402 | 78,055
Segment depreciation expense: |  |
Depreciation expense | 3,510 | 3,885
Cloud and Edge |  |
Segment Reporting Information [Line Items] |  |
Total revenue | 114,480 | 109,806
Total segment adjusted gross profit | 69,975 | 68,293
Segment depreciation expense: |  |
Depreciation expense | 2,499 | 2,715
IP Optical Networks |  |
Segment Reporting Information [Line Items] |  |
Total revenue | 71,679 | 63,392
Total segment adjusted gross profit | 19,500 | 18,609
Segment depreciation expense: |  |
Depreciation expense | $ 1,011 | $ 1,170

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