Restructuring, Asset Impairments and Other, Net - (Tables)

9 Months Ended

Sep. 27, 2019

Restructuring Charges [Abstract]

Schedule of Activity Included in Restructuring, Asset Impairments, and Other, Net

Summarized activity included in the “Restructuring, asset impairments and other, net” caption on the Company's Consolidated Statement of Operations and Comprehensive Income is as follows (in millions):  

	Restructuring		Asset Impairments		Other		Total
Quarter ended September 27, 2019
General workforce reduction	$	0.6	$	—	$	—	$	0.6
Post-Quantenna acquisition restructuring	1.8		—		—		1.8
Other	0.8		—		1.2		2.0
Total	$	3.2	$	—	$	1.2	$	4.4
	Restructuring		Asset Impairments (1)		Other		Total
Nine months ended September 27, 2019
General workforce reduction	$	8.4	$	—	$	—	$	8.4
Post-Quantenna acquisition restructuring	15.6		—		—		15.6
Other	0.8		2.9		0.4		4.1
Total	$	24.8	$	2.9	$	0.4	$	28.1

(1) Includes, among others, charges for the impairment of right-of-use assets of $2.5 million.

Schedule of Changes in Accrued Restructuring Reserve

Changes in accrued restructuring charges from December 31, 2018 to September 27, 2019 are summarized as follows (in millions):

	As of						As of
	December 31, 2018		Charges		Usage		September 27, 2019
Estimated employee separation charges	$	0.3	$	24.8	$	(22.6)	$	2.5
Other	0.2		—		(0.1)		0.1
Total	$	0.5	$	24.8	$	(22.7)	$	2.6