Earnings per share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Earnings Per Share [Abstract]
Net income attributable to shareholders	$ 40.0	$ 26.4
Weighted average number of shares outstanding (in shares)	262,674,227	283,520,302
Dilutive effect of share-based awards (in shares)	4,761,304	4,358,113
Diluted weighted average number of shares outstanding (in shares)	267,435,531	287,878,415
Number of anti-dilutive shares excluded from the diluted earnings per share calculation (in shares)	4,034,246	4,544,378
Basic earnings per share (in usd per share)	$ 0.15	$ 0.09
Diluted earnings per share (in usd per share)	$ 0.15	$ 0.09