Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 29, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 24, 2023	Jun. 25, 2023	Mar. 26, 2023
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period			$ (143.4)
Balance at the end of the period	$ (142.1)
Foreign Currency Translation
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(162.8)	$ (160.2)	(147.3)	$ (148.9)	$ (152.6)	$ (157.0)
Change in period	19.4	(2.6)	(12.9)	(17.3)	3.7	4.4
Balance at the end of the period	(143.4)	(162.8)	(160.2)	(166.2)	(148.9)	(152.6)
Pension Adjustment
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	0.7	0.7	0.7
Change in period	(0.7)
Balance at the end of the period		0.7	0.7
Cash Flow Hedges
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	4.4	4.6	3.2	6.0	5.4	7.1
Change in period	(3.1)	(0.2)	1.4	0.5	0.6	(1.7)
Balance at the end of the period	1.3	4.4	4.6	6.5	6.0	5.4
Accumulated Other Comprehensive Loss.
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(157.7)	(154.9)	(143.4)	(142.9)	(147.2)	(149.9)
Change in period	15.6	(2.8)	(11.5)	(16.8)	4.3	2.7
Balance at the end of the period	$ (142.1)	$ (157.7)	$ (154.9)	$ (159.7)	$ (142.9)	$ (147.2)