Accumulated Other Comprehensive Loss - Changes in OCI (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 26, 2025	Sep. 27, 2024
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	$ 2,006.8
Other comprehensive (loss) income, before reclassifications	10.3	$ 5.3
Amounts reclassified from accumulated other comprehensive (loss) income	5.6	(1.2)
Net current period other comprehensive (loss) income	15.9	4.1
Balance, value	2,029.3
Foreign currency transaction and translation gain (loss)	10.1	0.1
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax		0.2
Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	5.6	3.8
Other comprehensive (loss) income, before reclassifications	(9.3)	2.9
Amounts reclassified from accumulated other comprehensive (loss) income	5.4	(2.4)
Net current period other comprehensive (loss) income	(3.9)	0.5
Balance, value	1.7	4.3
Foreign Currency Translation Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(45.2)	(37.1)
Other comprehensive (loss) income, before reclassifications	20.3	3.3
Amounts reclassified from accumulated other comprehensive (loss) income	0.0	0.0
Net current period other comprehensive (loss) income	20.3	3.3
Balance, value	(24.9)	(33.8)
Retirement Benefit Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(10.8)	(10.0)
Other comprehensive (loss) income, before reclassifications	(0.7)	(0.9)
Amounts reclassified from accumulated other comprehensive (loss) income	0.2	1.2
Net current period other comprehensive (loss) income	(0.5)	0.3
Balance, value	(11.3)	(9.7)
Total
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(50.4)	(43.3)
Balance, value	$ (34.5)	$ (39.2)