SEGMENT REPORTING - Schedule of segment information (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 03, 2026	Sep. 27, 2025	Oct. 03, 2026	Sep. 27, 2025
Segment Reporting Information [Line Items]
Selling, engineering and administrative expenses	$ 40.6	$ 38.2	$ 118.2	$ 110.0
Operating Segments [Member]
Segment Reporting Information [Line Items]
Unallocated costs	1.5	1.6	1.6	2.5
Selling, engineering and administrative expenses	$ 40.6	$ 38.2	$ 118.2	$ 110.0

- Definition

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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