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Restructuring - Schedule of Components of Restructuring Expense Included in Consolidated Statements of Income (Loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses $ 1,629 $ 411 $ 6,229
Selling, General and Administrative Expenses [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 117 221 1,832
Research and Development Expenses [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 1,504 174 3,942
Cost of Sales [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 8 16 455
Cost of Sales [Member] | Network Solutions [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 8 13 220
Cost of Sales [Member] | Services And Support [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses $ 3 $ 235