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Business Combinations (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2025
Dec. 05, 2024
Aug. 05, 2024
Aug. 01, 2024
Mar. 19, 2021
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Business Acquisition [Line Items]                
Income (loss) from equity method investment           $ 10.6 $ (6.6)  
Goodwill           $ 236.2   $ 235.4
Linksys                
Business Acquisition [Line Items]                
Cash investment in privately held company         $ 160.0      
Ownership interest percentage         50.80%      
Fair value of equity method investment $ 21.5              
Income (loss) from equity method investment 10.8              
Deferred tax asset previously recorded related to equity method investment 30.6              
Linksys                
Business Acquisition [Line Items]                
Cash consideration $ 20.8              
Percentage of voting interests acquired 100.00%              
Business combination, consideration transferred $ 42.3              
Intangible assets acquired 17.5              
Other net assets acquired 64.7              
Deferred tax assets 45.8              
Inventory 21.4              
Cash 8.8              
Net other assets and liabilities 11.3              
Gain on bargain purchase $ 39.9              
Next DLP                
Business Acquisition [Line Items]                
Cash consideration     $ 105.0          
Goodwill     82.6          
Liabilities assumed     1.6          
Next DLP | Developed technologies                
Business Acquisition [Line Items]                
Intangible assets acquired     13.5          
Next DLP | Customer relationships                
Business Acquisition [Line Items]                
Intangible assets acquired     $ 10.5          
Lacework                
Business Acquisition [Line Items]                
Cash consideration       $ 152.3        
Intangible assets acquired       61.3        
Deferred tax assets       244.4        
Cash       6.2        
Net other assets and liabilities       53.3        
Gain on bargain purchase       106.3        
Lacework | Developed technologies                
Business Acquisition [Line Items]                
Finite-lived intangible assets acquired       39.5        
Lacework | Customer relationships                
Business Acquisition [Line Items]                
Finite-lived intangible assets acquired       7.5        
Lacework | Backlog                
Business Acquisition [Line Items]                
Finite-lived intangible assets acquired       10.0        
Lacework | Trade name                
Business Acquisition [Line Items]                
Finite-lived intangible assets acquired       $ 4.3        
Perception Point Ltd.                
Business Acquisition [Line Items]                
Cash consideration   $ 33.7            
Goodwill   24.5            
Other net liabilities   6.8            
Perception Point Ltd. | Developed technologies                
Business Acquisition [Line Items]                
Intangible assets acquired   9.5            
Perception Point Ltd. | Customer relationships                
Business Acquisition [Line Items]                
Intangible assets acquired   $ 6.5