REVENUES - Schedule of Disaggregated Net Sales by Customer (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025
Disaggregation of Revenue [Line Items]
Net sales	$ 883.2	$ 792.4	$ 1,695.1	$ 1,565.6
Fabs
Disaggregation of Revenue [Line Items]
Net sales	523.3	489.1	1,015.7	962.2
Equipment and Engineering
Disaggregation of Revenue [Line Items]
Net sales	167.4	119.5	301.6	232.4
Chemical and Materials
Disaggregation of Revenue [Line Items]
Net sales	90.5	76.9	176.3	155.0
Semi Distributor and Other
Disaggregation of Revenue [Line Items]
Net sales	59.1	65.8	118.4	135.8
Non-Semi
Disaggregation of Revenue [Line Items]
Net sales	$ 42.9	$ 41.1	$ 83.1	$ 80.2