Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 29, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The carrying amounts of goodwill as of December 29, 2024 and December 31, 2023 by reportable segment are as follows (in millions):

	As of December 29, 2024
	US		KGS		Total
Gross value	$	138.6	$	683.6	$	822.2
Less accumulated impairment	13.8		239.5		253.3
Net	$	124.8	$	444.1	$	568.9

	As of December 31, 2023
	US		KGS		Total
Gross value	$	138.8	$	683.6	$	822.4
Less accumulated impairment	13.8		239.5		253.3
Net	$	125.0	$	444.1	$	569.1

Schedule of Acquired Finite-Lived Intangible Assets

The following table sets forth information for acquired finite-lived and indefinite-lived intangible assets (in millions): 

	As of December 29, 2024						As of December 31, 2023
	Gross Value		Accumulated Amortization		Net Value		Gross Value		Accumulated Amortization		Net Value
Acquired finite-lived intangible assets:
Customer relationships	$	80.9	$	(65.3)	$	15.6	$	80.9	$	(62.8)	$	18.1
Contracts and backlog	53.1		(43.2)		9.9		53.1		(38.8)		14.3
Developed technology and technical know-how	33.7		(29.4)		4.3		33.7		(28.2)		5.5
Trade names	3.8		(3.1)		0.7		3.8		(2.7)		1.1
In-process research and development	16.8		(0.4)		16.4		16.8		(0.3)		16.5
Total finite-lived intangible assets	188.3		(141.4)		46.9		188.3		(132.8)		55.5
Indefinite-lived trade names	6.9		—		6.9		6.9		—		6.9
Total intangible assets	$	195.2	$	(141.4)	$	53.8	$	195.2	$	(132.8)	$	62.4

Schedule of Acquired Indefinite-Lived Intangible Assets

The following table sets forth information for acquired finite-lived and indefinite-lived intangible assets (in millions): 

	As of December 29, 2024						As of December 31, 2023
	Gross Value		Accumulated Amortization		Net Value		Gross Value		Accumulated Amortization		Net Value
Acquired finite-lived intangible assets:
Customer relationships	$	80.9	$	(65.3)	$	15.6	$	80.9	$	(62.8)	$	18.1
Contracts and backlog	53.1		(43.2)		9.9		53.1		(38.8)		14.3
Developed technology and technical know-how	33.7		(29.4)		4.3		33.7		(28.2)		5.5
Trade names	3.8		(3.1)		0.7		3.8		(2.7)		1.1
In-process research and development	16.8		(0.4)		16.4		16.8		(0.3)		16.5
Total finite-lived intangible assets	188.3		(141.4)		46.9		188.3		(132.8)		55.5
Indefinite-lived trade names	6.9		—		6.9		6.9		—		6.9
Total intangible assets	$	195.2	$	(141.4)	$	53.8	$	195.2	$	(132.8)	$	62.4

Schedule of Future Amortization Expense of Finite-Lived Intangible Assets

The estimated future amortization expense of acquired intangible assets with finite lives as of December 29, 2024 is as follows (in millions):

Fiscal Year	Amount
2025	8.9
2026	9.1
2027	7.3
2028	4.5
2029	4.5
Thereafter	12.6
Total	$	46.9