v3.26.3
Segment Information - Segment Reporting Information, by Segment (Details)
$ in Thousands
3 Months Ended 9 Months Ended 21 Months Ended 33 Months Ended
Dec. 31, 2024
USD ($)
Sep. 26, 2026
USD ($)
site
Mar. 28, 2026
USD ($)
Dec. 27, 2025
USD ($)
Sep. 27, 2025
USD ($)
Mar. 29, 2025
USD ($)
Sep. 26, 2026
USD ($)
site
Sep. 27, 2025
USD ($)
Sep. 26, 2026
USD ($)
Sep. 27, 2025
USD ($)
Segment Reporting                    
Net sales   $ 766,729     $ 624,640   $ 2,162,479 $ 1,792,360    
Other segment expenses   603,704     523,895   1,744,230 1,516,060    
Segment operating income   153,356     97,416   374,245 260,344    
Interest expense   5,689     8,578   18,405 26,021    
Foreign exchange loss (gain)   1,697     175   (876) 15,466    
Other income, net   (4,244)     (6,053)   (7,293) (14,020)    
Income before income taxes   150,214     94,716   364,009 232,877    
Restructuring charges   4,656     1,633   18,953 13,022    
Restructuring charges, net               13,100    
Impairment   1,566     0 $ 100 14,712 136    
Basler Electric                    
Segment Reporting                    
Acquisition related costs             500   $ 3,000  
Non-cash cost of goods and services sold     $ 5,400              
Inventory adjustment       $ 6,400     (2,600)      
Dortmund Fab                    
Segment Reporting                    
Acquisition related costs         0     0   $ 3,500
Inventory adjustment $ (500)         (500)        
Location, Statement of Income, Balance [Axis]: us-gaap:OperatingIncomeLoss                    
Segment Reporting                    
Acquisition related costs   3,500     1,400   5,000 3,000    
Disposal Group, Not Discontinued Operations                    
Segment Reporting                    
Fixed assets impairment charges   $ 200         $ 13,400      
Number of manufacturing sites | site   2         2      
Operating Segments                    
Segment Reporting                    
Segment operating income   $ 163,025     100,745   $ 418,249 276,300    
Other                    
Segment Reporting                    
Segment operating income   (9,669)     (3,329)   (44,004) (15,956)    
Electronics                    
Segment Reporting                    
Restructuring charges   2,279     526   11,971 6,948    
Impairment   1,566     0 $ 100 14,464 136    
Electronics | Customer Relationships                    
Segment Reporting                    
Impairment charges   1,300                
Electronics | Operating Segments                    
Segment Reporting                    
Net sales   426,239     357,457   1,195,434 1,000,372    
Other segment expenses   323,889     293,817   935,889 840,105    
Segment operating income   102,350     63,640   259,545 160,267    
Transportation                    
Segment Reporting                    
Restructuring charges   392     1,107   3,921 5,637    
Impairment   0     0   248 0    
Loss on disposition of business         300          
Transportation | Operating Segments                    
Segment Reporting                    
Net sales   182,643     171,311   535,435 512,573    
Other segment expenses   155,313     151,124   458,311 445,395    
Segment operating income   27,330     20,187   77,124 67,178    
Industrial                    
Segment Reporting                    
Restructuring charges   1,985     0   3,061 437    
Impairment   0     0   0 0    
Industrial | Operating Segments                    
Segment Reporting                    
Net sales   157,847     95,872   431,610 279,415    
Other segment expenses   124,502     78,954   350,030 230,560    
Segment operating income   $ 33,345     $ 16,918   $ 81,580 $ 48,855