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Restructuring - Schedule of Components of Restructuring Expenses Included in Consolidated Statements of Loss (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | $ 44,680 | $ 46,554 | $ 1,629
Selling, General and Administrative Expenses [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 9,128 | 11,603 | 117
Research and Development Expenses [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 20,973 | 7,728 | 1,504
Cost of Sales [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 14,579 | 27,223 | 8
Cost of Sales [Member] | Network Solutions [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 3,693 | 2,910 | $ 8
Cost of Sales [Member] | Services & Support [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | 2,289 |  |
Inventory Write Down [Member] | Network Solutions [Member] |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Total restructuring expenses | $ 8,597 | $ 24,313 |

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