v3.26.1
Acquisitions - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Oct. 16, 2025
Jan. 28, 2025
Oct. 05, 2022
Jun. 28, 2025
Jun. 27, 2026
Jun. 28, 2025
Jun. 29, 2024
Business Combination [Line Items]              
Contingent consideration       $ 117.4 $ 76.9 $ 117.4  
Payments to acquire businesses, net of cash acquired         399.3 120.9 $ 0.0
Payments for (proceeds from) acquisition adjustment         0.7 $ 0.7 $ 0.0
Spirent Communications PLC              
Business Combination [Line Items]              
Cash consideration $ 399.3            
Acquisition related cost $ 20.6       11.4    
Inertial Labs, Inc              
Business Combination [Line Items]              
Cash consideration   $ 134.4   3.7      
Acquisition related cost   11.7          
Contingent consideration   $ 175.0          
Contingent consideration period   4 years          
Contingent consideration   $ 116.2          
Payments to acquire businesses, net of cash acquired   121.6          
Cash acquired from acquisition   16.5          
Escrow deposit   1.0          
Payment for contingent consideration liability, investing activities       3.0      
Payments for (proceeds from) acquisition adjustment       0.7 0.7    
Consideration transferred       $ 1.4      
Refund of prepaid tax         0.6    
Acquisition related holdback, noncurrent   15.0          
Acquisition related holdback reduction         1.1    
Transaction costs   9.5          
Payments for previous acquisition         $ 13.9    
Inertial Labs, Inc | Retention Bonuses              
Business Combination [Line Items]              
Contingent consideration   $ 3.4          
Contingent consideration period   4 years          
Jackson Labs Technologies, LLC              
Business Combination [Line Items]              
Contingent consideration     $ 117.0        
Total consideration of acquisition     $ 49.9