Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2022

Retirement Benefits [Abstract]

Summary of Change in Benefit Obligations, Change in Plan Assets and Unfunded Status of DB Plans

The following table summarizes the change in the projected benefit obligation, change in plan assets and unfunded status of the DB plans as of December 31, 2022 and January 1, 2022:

	December 31, 2022
(in millions of U.S. dollars)	U.S.		International		Total
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	$	9.4	$	13.9	$	23.3
Service cost	—		0.9		0.9
Interest cost	0.1		0.1		0.2
Plan participant contributions	—		0.2		0.2
Benefit payments	(0.6)		(0.9)		(1.5)
Actuarial gains	(1.6)		(3.2)		(4.8)
Translation gains	—		(0.9)		(0.9)
Projected benefit obligation at end of year	$	7.3	$	10.1	$	17.4
Change in Plan Assets
Plan assets beginning of year	$	9.2	$	6.2	$	15.4
Employer contributions	—		0.3		0.3
Plan participant contributions	—		0.2		0.2
Benefit payments	(0.6)		(0.6)		(1.2)
Expected return on plan assets	—		0.1		0.1
Actual return on plan assets	(1.5)		—		(1.5)
Translation losses	—		(0.2)		(0.2)
Fair value at end of year	$	7.1	$	6.0	$	13.1
Funded Status of Plan
Projected benefit obligation	$	(7.3)	$	(10.1)	$	(17.4)
Fair value of plan assets	7.1		6.0		13.1
Unfunded status	$	(0.2)	$	(4.1)	$	(4.3)

	January 1, 2022
(in millions of U.S. dollars)	U.S.		International		Total
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	$	9.5	$	13.4	$	22.9
Service cost	—		0.8		0.8
Interest cost	0.2		0.1		0.3
Plan participant contributions	—		0.3		0.3
Benefit payments	(0.4)		(1.2)		(1.6)
Actuarial losses	0.1		0.6		0.7
Translation gains	—		(0.1)		(0.1)
Projected benefit obligation at end of year	$	9.4	$	13.9	$	23.3
Change in Plan Assets
Plan assets beginning of year	$	9.1	$	6.0	$	15.1
Employer contributions	0.2		0.4		0.6
Plan participant contributions	—		0.3		0.3
Benefit payments	(0.4)		(0.7)		(1.1)
Actuarial gains	—		0.2		0.2
Expected return on plan assets	—		0.1		0.1
Actual return on plan assets	0.3		—		0.3
Translation losses	—		(0.1)		(0.1)
Fair value at end of year	$	9.2	$	6.2	$	15.4
Funded Status of Plan
Projected benefit obligation	$	(9.4)	$	(13.9)	$	(23.3)
Fair value of plan assets	9.2		6.2		15.4
Unfunded status	$	(0.2)	$	(7.7)	$	(7.9)

Schedule of Components of Net Periodic Pension Cost

The components of net periodic pension cost were as follows:

	December 31, 2022
(in millions of U.S. dollars)	U.S.		International		Total
Service cost	$	—	$	0.9	$	0.9
Interest cost	0.1		0.1		0.2
Expected return on plan assets	(0.1)		(0.1)		(0.2)
Net periodic pension cost	$	—	$	0.9	$	0.9

	January 1, 2022
(in millions of U.S. dollars)	U.S.		International		Total
Service cost	$	—	$	0.8	$	0.8
Interest cost	0.2		0.1		0.3
Expected return on plan assets	(0.2)		(0.1)		(0.3)
Net periodic pension cost	$	—	$	0.8	$	0.8

	January 2, 2021
(in millions of U.S. dollars)	U.S.		International		Total
Service cost	$	—	$	1.0	$	1.0
Interest cost	0.3		0.1		0.4
Expected return on plan assets	(0.5)		(0.1)		(0.6)
Curtailment gain	—		(0.3)		(0.3)
Net periodic pension (benefit) cost	$	(0.2)	$	0.7	$	0.5

Schedule of Amounts Included in Accumulated Other Comprehensive Loss, Net of Tax which have Not yet been Recognized in Net Periodic Benefit Cost

Amounts included in accumulated other comprehensive (loss) income, net of tax, at year-end which have not yet been recognized in net periodic benefit cost were as follows:

	December 31, 2022
(in millions of U.S. dollars)	U.S.		International		Total
Unrecognized net actuarial (loss) income	$	(0.6)	$	1.8	$	1.2
Total accumulated other comprehensive (loss) income	$	(0.6)	$	1.8	$	1.2
	January 1, 2022
(in millions of U.S. dollars)	U.S.		International		Total
Unrecognized net actuarial loss	$	(0.6)	$	(1.1)	$	(1.7)
Total accumulated other comprehensive loss	$	(0.6)	$	(1.1)	$	(1.7)
	January 2, 2021
(in millions of U.S. dollars)	U.S.		International		Total
Unrecognized net actuarial loss	$	(0.4)	$	(0.7)	$	(1.1)
Total accumulated other comprehensive loss	$	(0.4)	$	(0.7)	$	(1.1)

Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost

The following table summarizes the weighted average actuarial assumptions used to determine the projected benefit obligation:

	For the Year Ended
	December 31, 2022		January 1, 2022		January 2, 2021
U.S. Plans
Discount rate	4.9	%	2.5	%	2.0	%
Expected long-term rate of return on plan assets	1.0	%	2.0	%	6.3	%
International Plans
Discount rate	4.5	%	1.8	%	1.3	%
Expected long-term rate of return on plan assets	2.3	%	2.0	%	2.1	%
Rate of compensation increase	2.7	%	1.8	%	1.2	%
CPI Inflation factor	—	%	0.1	%	0.1	%

The following table summarizes the weighted average actuarial assumptions used to determine net periodic benefit cost:

	For the Year Ended
	December 31, 2022		January 1, 2022		January 2, 2021
U.S. Plans
Discount rate	1.0	%	2.0	%	3.0	%
Expected long-term rate of return on plan assets	1.0	%	2.0	%	6.3	%
International Plans
Discount rate	4.5	%	1.8	%	1.3	%
Expected long-term rate of return on plan assets	2.3	%	2.0	%	2.1	%
Inflation factor	—	%	0.1	%	0.1	%

Schedule of Pension Plan Weighted-Average Asset Allocations by Asset Category

Our DB plans weighted-average asset allocations by asset category were as follows:

	December 31, 2022		January 1, 2022
U.S. Plans
Cash and cash equivalents	100.0	%	—	%
Fixed income investments	—	%	100.0	%
International Plans
Cash and cash equivalents	3.6	%	—	%
Equity securities	28.6	%	57.5	%
Fixed income investments	57.1	%	32.4	%
Real estate	10.7	%	10.1	%

Schedule of Benefit Payments Expected to be Paid

The following benefit payments are expected to be paid in the periods indicated below:

(in millions of U.S. dollars)	U.S.		International		Total
Expected benefit payments
FY 2023	$	7.3	$	1.1	$	8.4
FY 2024	—		0.6		0.6
FY 2025	—		0.6		0.6
FY 2026	—		0.6		0.6
FY 2027	—		0.4		0.4
FY 2028 through FY 2032	—		2.2		2.2

Schedule of Fair Values of Company's International Plan Assets

The fair values of the Company’s International Plan assets at December 31, 2022 and January 1, 2022 were as follows:

	December 31, 2022
(in millions of U.S. dollars)	Level 1		Level 2		Level 3
Cash and cash equivalents:
Cash and cash equivalents	$	0.2	$	—	$	—
Mutual funds:
Non-U.S. equity securities	1.8		—		—
Fixed income:
Non-U.S. bonds	1.7		—		—
Insurance contract	—		1.7		—
Real estate:
Real estate	—		0.6		—
Total	$	3.7	$	2.3	$	—

	January 1, 2022
(in millions of U.S. dollars)	Level 1		Level 2		Level 3
Mutual funds:
Non-U.S. equity securities	$	1.9	$	—	$	—
Fixed income:
Non-U.S. bonds	1.7		—		—
Insurance contract	—		2.0		—
Real estate:
Real estate	—		0.6		—
Total	$	3.6	$	2.6	$	—