Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Narrative (Details)

v3.23.2
Basis of Presentation - Narrative (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 13, 2019
element
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Jul. 01, 2023
USD ($)
Jul. 02, 2022
USD ($)
Apr. 02, 2022
USD ($)
Jul. 01, 2023
USD ($)
Jul. 02, 2022
USD ($)
Dec. 31, 2022
USD ($)
Sep. 30, 2021
USD ($)
Business Acquisition [Line Items]                    
Total write-offs charged against allowance       $ 0.7 $ 0.0   $ 0.8 $ 0.0    
Allowance for doubtful accounts       1.7     1.7   $ 2.6  
Research and development expense       12.7 $ 12.6   25.4 24.8    
USDOT | AMPJ Award                    
Business Acquisition [Line Items]                    
USDOT grant receivable amount (up to)                   $ 14.7
Portion of grant received           $ 5.2        
Revenue recognized included in contract liability balance               $ 6.0    
Test Systems Segment                    
Business Acquisition [Line Items]                    
Severance charges       0.6            
Restructuring       $ 0.3     $ 0.3      
Sold | Semiconductor Test Business | Test Systems Segment                    
Business Acquisition [Line Items]                    
Number of elements for contingent earnouts | element 2                  
Earnout proceeds received   $ 3.4 $ 11.3