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Restructuring - Schedule of Components of Restructuring Expenses Including in Condensed Consolidated Statements of (Loss) Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | $ 24,873 | $ 33,178 | $ 2
Cost of Sales [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 21,630 | 21,706 |
Cost of Sales [Member] | Network Solutions [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 611 | 669 |
Cost of Sales [Member] | Services & Support [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | (24) | (6) |
Inventory Write Down [Member] | Network Solutions [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 21,043 | 21,043 |
Selling, General and Administrative Expenses [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 3,387 | 6,960 | $ 2
Research and Development Expenses [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | $ (144) | $ 4,512 |

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