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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2023 | Sep. 30, 2022 | Sep. 29, 2023 | Sep. 30, 2022
Revenue: |  |  |  |
Total net revenue | $ 127,203 | $ 155,738 | $ 440,815 | $ 460,623
Cost of revenue: |  |  |  |
Total cost of revenue | 65,519 | 77,134 | 210,137 | 230,436
Total gross profit | 61,684 | 78,604 | 230,678 | 230,187
Operating expenses: |  |  |  |
Research and development | 30,316 | 30,466 | 96,030 | 89,219
Selling, general and administrative | 39,245 | 36,379 | 121,300 | 109,790
Restructuring and related charges | 726 | 335 | 809 | 2,136
Total operating expenses | 70,287 | 67,180 | 218,139 | 201,145
Income (loss) from operations | (8,603) | 11,424 | 12,539 | 29,042
Interest expense, net | (619) | (1,284) | (2,125) | (4,111)
Other income (expense), net | 343 | (118) | (86) | 4,218
Income (loss) before income taxes | (8,879) | 10,022 | 10,328 | 29,149
Provision for (benefit from) income taxes | (2,384) | 1,282 | 10,175 | 7,098
Net income (loss) | $ (6,495) | $ 8,740 | $ 153 | $ 22,051
Net income (loss) per share: |  |  |  |
Basic (in dollars per share) | $ (0.06) | $ 0.08 | $ 0 | $ 0.21
Diluted (in dollars per share) | $ (0.06) | $ 0.08 | $ 0 | $ 0.20
Weighted average shares outstanding: |  |  |  |
Basic (in shares) | 112,031 | 105,228 | 111,431 | 104,617
Diluted (in shares) | 112,031 | 113,185 | 117,910 | 110,911
Appliance and integration |  |  |  |
Revenue: |  |  |  |
Total net revenue | $ 84,760 | $ 116,441 | $ 310,681 | $ 351,293
Cost of revenue: |  |  |  |
Total cost of revenue | 48,992 | 64,932 | 166,177 | 193,655
SaaS and service |  |  |  |
Revenue: |  |  |  |
Total net revenue | 42,443 | 39,297 | 130,134 | 109,330
Cost of revenue: |  |  |  |
Total cost of revenue | $ 16,527 | $ 12,202 | $ 43,960 | $ 36,781

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