Retirement and Other Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2026	Mar. 28, 2025
United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1.9	$ 1.6
Interest cost	1.9	1.9
Expected return on assets	(0.7)	(0.8)
Amortization of net actuarial loss	0.1	0.1
Net periodic benefit costs	3.2	2.8
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit costs	$ 0.6	$ 0.5