Employee Stock Plans (Tables)

3 Months Ended

Mar. 27, 2020

Postemployment Benefits [Abstract]

Stock-Based Compensation Expense Included in Condensed Consolidated Statements of Operations

The following table shows the Company’s stock-based compensation expense included in the Condensed Consolidated Statements of Operations:

	Three Months Ended
	March 27,			March 29,
(In millions)	2020			2019
Cost of goods sold (1)	$	0.4		$	0.6
Research and development		0.1			0.1
Sales and marketing		0.3			0.3
General and administrative		2.3			1.9
		3.1			2.9
Income tax benefit		(0.9	)		(1.5	)
Stock-based compensation expense, net of tax	$	2.2		$	1.4

Stock-based compensation expense capitalized in inventory for the three months ended March 27, 2020 and March 29, 2019 was not significant.

Summary of Restricted Stock Unit, Performance Stock Units and Restricted Stock Award Activity

The following table summarizes the Company’s combined RSU, PSU and RSA activity for the three months ended March 27, 2020:

(In millions)	Shares			Aggregate Fair Value
Unvested RSUs, PSUs and RSAs at December 27, 2019		1.8		$	41.9
Granted	0.1
Vested	—
Forfeited		(0.1	)
Unvested RSUs, PSUs and RSAs as of March 27, 2020		1.8		$	27.2
Vested and expected to vest RSUs, PSUs and RSAs as of March 27, 2020		1.6		$	24.7