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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 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses $ 2,437 $ 2 $ 1,629
Cost of Sales [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 76    
Cost of Sales [Member] | Network Solutions [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 58    
Cost of Sales [Member] | Services & Support [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 18    
Selling, General and Administrative Expenses [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses 2,180 $ 2  
Research and Development Expenses [Member]      
Restructuring Cost And Reserve [Line Items]      
Total restructuring expenses $ 181