Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The carrying amounts of goodwill as of December 30, 2018 and December 31, 2017 by reportable segment are as follows (in millions):

	As of December 30, 2018
	US		KGS		Total
Gross value	$	111.1	$	567.9	$	679.0
Less accumulated impairment	13.8		239.5		253.3
Net	$	97.3	$	328.4	$	425.7

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 30, 2018							As of December 31, 2017
	Gross Value		Accumulated Amortization			Net Value		Gross Value		Accumulated Amortization			Net Value
Acquired finite-lived intangible assets:
Customer relationships	$	52.6	$	(50.6	)	$	2.0	$	52.6	$	(49.1	)	$	3.5
Contracts and backlog	29.9		(26.4		)	3.5		29.9		(24.8		)	5.1
Developed technology and technical know-how	25.0		(21.3		)	3.7		25.0		(18.6		)	6.4
Trade names	1.4		(1.4		)	—		1.4		(1.3		)	0.1
Total finite-lived intangible assets	108.9		(99.7		)	9.2		108.9		(93.8		)	15.1
Indefinite-lived trade names	6.9		—			6.9		6.9		—			6.9
Total intangible assets	$	115.8	$	(99.7	)	$	16.1	$	115.8	$	(93.8	)	$	22.0

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 30, 2018 is as follows (in millions):

Fiscal Year	Amount
2019	$	5.1
2020	3.0
2021	1.1
Total	$	9.2