Accumulated Other Comprehensive Loss - Changes in OCI (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 25, 2026	Sep. 26, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency transaction and translation gain (loss)	$ 3.1	$ 10.1
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	2,030.2
Other comprehensive (loss) income, before reclassifications	6.9	10.3
Amounts reclassified from accumulated other comprehensive (loss) income	(6.8)	5.6
Net current period other comprehensive (loss) income	0.1	15.9
Balance, value	2,026.1
Total
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(38.2)	(50.4)
Balance, value	(38.1)	(34.5)
Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	1.9	5.6
Other comprehensive (loss) income, before reclassifications	12.4	(9.3)
Amounts reclassified from accumulated other comprehensive (loss) income	(7.4)	5.4
Net current period other comprehensive (loss) income	5.0	(3.9)
Balance, value	6.9	1.7
Foreign Currency Translation Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(24.8)	(45.2)
Other comprehensive (loss) income, before reclassifications	(6.0)	20.3
Amounts reclassified from accumulated other comprehensive (loss) income	0.0	0.0
Net current period other comprehensive (loss) income	(6.0)	20.3
Balance, value	(30.8)	(24.9)
Retirement Benefit Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(15.3)	(10.8)
Other comprehensive (loss) income, before reclassifications	0.5	(0.7)
Amounts reclassified from accumulated other comprehensive (loss) income	0.6	0.2
Net current period other comprehensive (loss) income	1.1	(0.5)
Balance, value	$ (14.2)	$ (11.3)