Segment information - Segment Profit or Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025
Segment Reporting
Net sales	$ 941.6	$ 883.7	$ 1,792.7	$ 1,731.3
Adjusted cost of sales	(547.7)	(518.3)	(1,054.5)	(1,021.1)
Adjusted selling, general and administrative expenses ("SG&A")	(206.2)	(189.1)	(395.5)	(369.0)
Depreciation and software amortization	27.0	23.9	52.9	47.4
Other adjustments	(3.3)	(1.0)	(6.8)	(2.1)
Adjusted EBITDA	211.4	199.2	388.8	386.5
Power Transmission
Segment Reporting
Net sales	588.5	550.1	1,121.7	1,077.3
Adjusted cost of sales	(334.6)	(319.9)	(647.1)	(628.7)
Adjusted selling, general and administrative expenses ("SG&A")	(131.8)	(119.8)	(252.4)	(233.5)
Depreciation and software amortization	14.8	13.0	28.9	25.7
Other adjustments	(2.1)	(0.6)	(4.3)	(1.3)
Adjusted EBITDA	134.8	122.8	246.8	239.5
Fluid Power
Segment Reporting
Net sales	353.1	333.6	671.0	654.0
Adjusted cost of sales	(213.1)	(198.4)	(407.4)	(392.4)
Adjusted selling, general and administrative expenses ("SG&A")	(74.4)	(69.3)	(143.1)	(135.5)
Depreciation and software amortization	12.2	10.9	24.0	21.7
Other adjustments	(1.2)	(0.4)	(2.5)	(0.8)
Adjusted EBITDA	$ 76.6	$ 76.4	$ 142.0	$ 147.0

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Gates Industrial Corp Ltd. 10-Q