Annual report [Section 13 and 15(d), not S-K Item 405]

Summary of Significant Accounting Policies - Narrative (Details)

v3.25.4
Summary of Significant Accounting Policies - Narrative (Details)
$ in Millions
 12 Months Ended
Jan. 03, 2026
USD ($)
segment
Dec. 28, 2024
USD ($)
Dec. 30, 2023
USD ($)
Schedule of Equity Method Investments [Line Items]      
Interest income $ 5.6 $ 2.1 $ 0.0
Accounts receivable, allowance for credit loss, period increase (decrease)   15.7  
Product warranty obligation, term 10 years    
Cost of revenues $ 541.2 566.0 616.7
Advertising expense 4.4 4.6 $ 3.8
Impairment, long-lived asset $ 0.4 $ 0.0  
Number of operating segments | segment 2    
Number of reportable segments | segment 2    
Transferred at Point in Time      
Schedule of Equity Method Investments [Line Items]      
Percentage of revenue transferred 71.00% 70.00% 74.00%
Service revenues transferred over time      
Schedule of Equity Method Investments [Line Items]      
Percentage of revenue transferred 29.00% 30.00% 26.00%
Minimum      
Schedule of Equity Method Investments [Line Items]      
Product warranty obligation, term 1 year    
Maximum      
Schedule of Equity Method Investments [Line Items]      
Product warranty obligation, term 3 years    
Inventory Concentration Risk | Customer Concentration Risk | Customer One      
Schedule of Equity Method Investments [Line Items]      
Concentration percentage 17.00% 16.00%  
RSUs | Minimum      
Schedule of Equity Method Investments [Line Items]      
Vesting period 1 year    
RSUs | Minimum | Employee      
Schedule of Equity Method Investments [Line Items]      
Vesting period 1 year    
RSUs | Maximum      
Schedule of Equity Method Investments [Line Items]      
Vesting period 4 years    
RSUs | Maximum | Employee      
Schedule of Equity Method Investments [Line Items]      
Vesting period 4 years    
Service revenues      
Schedule of Equity Method Investments [Line Items]      
Cost of revenues $ 136.7 $ 123.7 $ 115.9
Shipping and Handling      
Schedule of Equity Method Investments [Line Items]      
Cost of revenues $ 31.3 $ 35.0 $ 38.1