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Restructuring - Schedule of Components of Restructuring Expenses Included in Consolidated Statements of Loss (Detail) - USD ($)
$ in Thousands
 12 Months Ended
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