v3.24.2.u1
Background and Basis of Presentation - Additional Information (Detail)
shares in Millions, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 07, 2024
USD ($)
Jul. 07, 2024
USD ($)
Jun. 30, 2024
USD ($)
Customer
shares
Sep. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
shares
Jun. 30, 2024
USD ($)
Customer
shares
Jun. 30, 2023
USD ($)
shares
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jan. 01, 2024
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Proceeds from the pending sale           $ 2,100.0        
Percentage of convertible preferred stock owned     100.00%     100.00%        
Related party transactions     $ 0.0     $ 0.0        
Guarantee agreements amount     0.0   $ 0.0 0.0 $ 0.0 $ 0.0 $ 0.0  
Advance payment on long term supply       $ 120.0   $ 45.0   30.0    
Increase in purchase of raw material       $ 137.0            
Product warranty term           These product warranties extend over various periods, depending on the product subject to the warranty and the terms of the individual agreements        
Intangible asset impairment charges, excluding goodwill     0.0   0.0 $ 0.0 0.0      
Impairment of goodwill     0.0   0.0 0.0 0.0      
Income tax (expense) benefit     43.7   3.6 (56.1) 7.6      
Pre-tax net loss for the period     31.1   (66.7) (131.2) (40.9)      
Asset impairments     $ 17.2     17.2 0.0      
Excess tax costs related to equity compensation awards         5.4 $ 7.3 6.9      
Tax benefits related uncertain tax positions         $ 1.5   $ 9.8      
Dilutive effect of equity-based awards | shares     2.0   0.0 0.0 0.0      
Additional valuation allowance           $ 67.8        
ANS [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Percentage of exceeded carrying amount                   7.00%
Enterprise [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Percentage of exceeded carrying amount                   8.00%
Casa Systems Inc [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Total cash consideration paid $ 45.1 $ 45.1                
Guarantees [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Letters of credit outstanding amount     $ 35.9     $ 35.9        
Convertible Preferred Stock [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Dilutive effect of equity-based awards | shares     42.8   40.6 42.5 40.3      
Stock Compensation Plan [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Amount of outstanding equity based awards not included in computation of diluted EPS | shares     17.2   17.2 18.6 16.3      
Dilutive effect of equity-based awards | shares         2.0 1.7 2.6      
Senior Notes Due June Fifteen Two Thousand Twenty Five [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Senior notes     $ 1,274.6     $ 1,274.6   $ 1,274.6    
Interest rate     6.00%     6.00%   6.00%    
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Direct customer accounted for 10% or more of the Company's accounts receivable and total net sales | Customer     0     0        
Customer Concentration Risk [Member] | Accounts Receivable [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Direct customer accounted for 10% or more of the Company's accounts receivable and total net sales | Customer           0        
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Charter Communications [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Concentration risk percentage           10.00%        
Customer Concentration Risk [Member] | Minimum [Member] | Sales Revenue, Net [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Concentration risk percentage     10.00%     10.00%        
Customer Concentration Risk [Member] | Minimum [Member] | Accounts Receivable [Member]                    
Organization Consolidation And Presentation Of Financial Statements [Line Items]                    
Concentration risk percentage           10.00%