v3.26.3
Segment Reporting - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 02, 2026
Sep. 26, 2025
Oct. 02, 2026
Sep. 26, 2025
Disaggregation of Revenue [Line Items]        
Net sales $ 567,290 $ 444,808 $ 1,731,021 $ 1,296,796
Semiconductor        
Disaggregation of Revenue [Line Items]        
Net sales 282,377 208,946 905,866 589,144
Industrial        
Disaggregation of Revenue [Line Items]        
Net sales 54,900 46,817 163,036 139,881
Aerospace and defense        
Disaggregation of Revenue [Line Items]        
Net sales 74,094 50,981 207,776 154,331
Consumer electronics        
Disaggregation of Revenue [Line Items]        
Net sales 51,177 52,649 142,309 161,938
Automotive        
Disaggregation of Revenue [Line Items]        
Net sales 20,810 17,503 60,553 56,228
Energy        
Disaggregation of Revenue [Line Items]        
Net sales 32,357 28,067 131,806 90,390
Life sciences        
Disaggregation of Revenue [Line Items]        
Net sales 17,209 14,059 28,903 40,251
Other        
Disaggregation of Revenue [Line Items]        
Net sales 34,366 25,786 90,772 64,633
Performance Materials        
Disaggregation of Revenue [Line Items]        
Net sales 198,978 170,787 562,592 527,552
Performance Materials | Semiconductor        
Disaggregation of Revenue [Line Items]        
Net sales 3,905 2,005 10,102 7,390
Performance Materials | Industrial        
Disaggregation of Revenue [Line Items]        
Net sales 32,362 31,141 99,526 93,424
Performance Materials | Aerospace and defense        
Disaggregation of Revenue [Line Items]        
Net sales 59,992 40,326 165,063 126,382
Performance Materials | Consumer electronics        
Disaggregation of Revenue [Line Items]        
Net sales 47,648 48,206 117,355 149,913
Performance Materials | Automotive        
Disaggregation of Revenue [Line Items]        
Net sales 17,857 15,206 53,184 48,243
Performance Materials | Energy        
Disaggregation of Revenue [Line Items]        
Net sales 9,500 8,448 38,399 37,388
Performance Materials | Life sciences        
Disaggregation of Revenue [Line Items]        
Net sales 2,373 2,465 6,089 7,323
Performance Materials | Other        
Disaggregation of Revenue [Line Items]        
Net sales 25,341 22,990 72,874 57,489
Electronic Materials        
Disaggregation of Revenue [Line Items]        
Net sales 336,608 246,837 1,075,154 696,059
Electronic Materials | Semiconductor        
Disaggregation of Revenue [Line Items]        
Net sales 275,621 205,821 888,685 579,064
Electronic Materials | Industrial        
Disaggregation of Revenue [Line Items]        
Net sales 15,045 9,020 40,473 27,779
Electronic Materials | Aerospace and defense        
Disaggregation of Revenue [Line Items]        
Net sales 4,311 2,357 13,167 6,137
Electronic Materials | Consumer electronics        
Disaggregation of Revenue [Line Items]        
Net sales 135 416 14,237 1,682
Electronic Materials | Automotive        
Disaggregation of Revenue [Line Items]        
Net sales 737 669 1,231 3,211
Electronic Materials | Energy        
Disaggregation of Revenue [Line Items]        
Net sales 22,857 19,619 93,407 53,002
Electronic Materials | Life sciences        
Disaggregation of Revenue [Line Items]        
Net sales 9,269 6,497 6,508 18,886
Electronic Materials | Other        
Disaggregation of Revenue [Line Items]        
Net sales 8,633 2,438 17,446 6,298
Precision Optics        
Disaggregation of Revenue [Line Items]        
Net sales 31,704 27,184 93,275 73,185
Precision Optics | Semiconductor        
Disaggregation of Revenue [Line Items]        
Net sales 2,851 1,120 7,079 2,690
Precision Optics | Industrial        
Disaggregation of Revenue [Line Items]        
Net sales 7,493 6,656 23,037 18,678
Precision Optics | Aerospace and defense        
Disaggregation of Revenue [Line Items]        
Net sales 9,791 8,298 29,546 21,812
Precision Optics | Consumer electronics        
Disaggregation of Revenue [Line Items]        
Net sales 3,394 4,027 10,717 10,343
Precision Optics | Automotive        
Disaggregation of Revenue [Line Items]        
Net sales 2,216 1,628 6,138 4,774
Precision Optics | Energy        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Precision Optics | Life sciences        
Disaggregation of Revenue [Line Items]        
Net sales 5,567 5,097 16,306 14,042
Precision Optics | Other        
Disaggregation of Revenue [Line Items]        
Net sales 392 358 452 846
Other        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Semiconductor        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Industrial        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Aerospace and defense        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Consumer electronics        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Automotive        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Energy        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Life sciences        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Other        
Disaggregation of Revenue [Line Items]        
Net sales $ 0 $ 0 $ 0 $ 0