v3.26.1
Acquisitions - Preliminary Allocation of Purchase Price (Details) - USD ($)
$ in Millions
 5 Months Ended 12 Months Ended
Oct. 16, 2025
Jun. 28, 2025
Jun. 27, 2026
Jun. 28, 2025
Jan. 28, 2025
Jun. 29, 2024
Business Combination [Line Items]            
Goodwill, net   $ 595.7 $ 700.7 $ 595.7   $ 452.9
Measurement period adjustment     0.2 $ 0.6    
Spirent Communications PLC            
Business Combination [Line Items]            
Inventory, net     7.7      
Prepayments and other current assets     1.0      
Property, plant and equipment, net     2.9      
Goodwill, net $ 111.3   111.5      
Identified intangible assets acquired     314.2      
Other non-current assets     1.7      
Deferred revenue     (25.6)      
Accrued payroll and related expenses     (0.8)      
Other current liabilities     (3.9)      
Other non-current liabilities(2)     (9.4)      
Total purchase consideration     399.3      
Measurement period adjustment 0.2          
Long term deferred revenue $ 8.2          
Inertial Labs, Inc            
Business Combination [Line Items]            
Cash and cash equivalents     16.5      
Accounts receivable, net     8.1      
Inventory, net     26.0      
Prepayments and other current assets     1.1      
Property, plant and equipment, net     1.9      
Goodwill, net     130.3   $ 129.7  
Identified intangible assets acquired     117.6      
Other non-current assets     1.9      
Deferred revenue     (0.3)      
Accounts payable     (1.4)      
Accrued payroll and related expenses     (0.5)      
Accrued expenses     (3.5)      
Other non-current liabilities(2)     (27.1)      
Total purchase consideration     270.6      
Measurement period adjustment   $ 0.6        
Inertial Labs, LLC            
Business Combination [Line Items]            
Deferred tax liability     25.0      
Uncertain tax positions     $ 0.9