Retirement Plans - Changes in Projected Benefit Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2025	Dec. 29, 2024	Dec. 31, 2023
Pension
Change in Projected Benefit Obligation:
Interest cost	$ 1.5	$ 1.5	$ 1.6
Pension | United States
Change in Projected Benefit Obligation:
Projected benefit obligation, beginning of year	27.7	30.1
Interest cost	1.5	1.5
Actuarial loss (gain)	1.8	(0.4)
Benefits paid	(3.1)	(3.5)
Curtailments	0.0	0.0
Projected benefit obligation, end of year	27.9	27.7	30.1
Accumulated benefit obligation, end of year	27.9	27.7
Reconciliation of Funded Status:
Projected benefit obligation	(27.9)	(27.7)	(30.1)
Fair value of plan assets	0.0	0.0
Funded status	(27.9)	(27.7)
Unrecognized prior service credit	0.0	0.0
Unrecognized net loss (earnings)	5.7	4.1
Net amount	(22.2)	(23.6)
Accrued liabilities	(2.8)	(2.8)
Other liabilities	(25.1)	(24.9)
Accumulated other comprehensive loss	5.7	4.1
Postretirement
Change in Projected Benefit Obligation:
Interest cost	1.0	1.0	1.1
Postretirement | United States
Change in Projected Benefit Obligation:
Projected benefit obligation, beginning of year	19.6	20.2
Interest cost	1.0	1.0
Actuarial loss (gain)	0.3	(0.9)
Benefits paid	(1.6)	(1.6)
Curtailments	0.1	0.9
Projected benefit obligation, end of year	19.4	19.6	20.2
Accumulated benefit obligation, end of year	19.4	19.6
Reconciliation of Funded Status:
Projected benefit obligation	(19.4)	(19.6)	$ (20.2)
Fair value of plan assets	0.0	0.0
Funded status	(19.4)	(19.6)
Unrecognized prior service credit	0.0	(0.2)
Unrecognized net loss (earnings)	(2.1)	(2.5)
Net amount	(21.5)	(22.3)
Accrued liabilities	(1.5)	(1.6)
Other liabilities	(17.9)	(18.0)
Accumulated other comprehensive loss	$ (2.1)	$ (2.7)