v3.26.1
Segment Information - Segment Reporting Information, by Segment (Details)
$ in Thousands
3 Months Ended 6 Months Ended 18 Months Ended 39 Months Ended
Jun. 27, 2026
USD ($)
site
Mar. 28, 2026
USD ($)
Dec. 27, 2025
USD ($)
Jun. 28, 2025
USD ($)
Mar. 29, 2025
USD ($)
Jun. 27, 2026
USD ($)
Jun. 28, 2025
USD ($)
Jun. 27, 2026
USD ($)
Mar. 28, 2026
USD ($)
Segment Reporting                  
Net sales $ 738,781     $ 613,413   $ 1,395,750 $ 1,167,720    
Other segment expenses 598,700     516,615   1,140,526 992,165    
Segment operating income 119,724     92,778   220,889 162,928    
Interest expense 5,739     8,568   12,716 17,443    
Foreign exchange (gain) loss (160)     10,448   (2,573) 15,291    
Other income, net (2,919)     (4,452)   (3,049) (7,967)    
Income before income taxes 117,064     78,214   213,795 138,161    
Restructuring charges 6,875     2,506   14,297 11,389    
Impairment 13,146     0 $ 100 13,146 136    
Disposal Group, Not Discontinued Operations                  
Segment Reporting                  
Fixed assets impairment charges $ 13,100                
Number of manufacturing sites | site 2                
Basler Electric                  
Segment Reporting                  
Acquisition related costs           500   $ 3,000  
Non-cash cost of goods and services sold $ 5,400 $ 5,400              
Inventory adjustment     $ 6,400     (2,600)      
Dortmund Fab                  
Segment Reporting                  
Acquisition related costs             0   $ 3,500
Inventory adjustment         500        
Location, Statement of Income, Balance [Axis]: us-gaap:OperatingIncomeLoss                  
Segment Reporting                  
Acquisition related costs 400     1,500   1,500 1,600    
Operating Segments                  
Segment Reporting                  
Segment operating income 140,081     96,798   255,224 175,555    
Other                  
Segment Reporting                  
Segment operating income (20,357)     (4,020)   (34,335) (12,627)    
Electronics                  
Segment Reporting                  
Net sales 406,420     335,666   769,195 642,915    
Other segment expenses 319,504     285,805   612,000 546,288    
Restructuring charges 4,687     1,107   9,692 6,422    
Impairment 12,898     0 $ 100 12,898 136    
Electronics | Operating Segments                  
Segment Reporting                  
Net sales       335,666          
Segment operating income 86,916     49,861   157,195 96,627    
Transportation                  
Segment Reporting                  
Net sales 182,411     179,400   352,792 341,262    
Other segment expenses 156,720     151,326   302,998 294,271    
Restructuring charges 1,484     1,375   3,529 4,530    
Impairment 248     0   248 0    
Transportation | Operating Segments                  
Segment Reporting                  
Net sales       179,400          
Segment operating income 25,691     28,074   49,794 46,991    
Industrial                  
Segment Reporting                  
Net sales 149,950     98,347   273,763 183,543    
Other segment expenses 122,476     79,484   225,528 151,606    
Restructuring charges 704     24   1,076 437    
Impairment 0     0   0 0    
Industrial | Operating Segments                  
Segment Reporting                  
Net sales       98,347          
Segment operating income $ 27,474     $ 18,863   $ 48,235 $ 31,937