Shareholders' Equity (Tables)

3 Months Ended

Mar. 30, 2018

Equity [Abstract]

Summary Of Stock-Based Compensation Expense, Net Of Tax

The following table summarizes stock-based compensation expense for the first quarter of fiscal 2018 and 2017:

	First Quarter of
	2018		2017
(In millions)
Cost of sales	$	1.1	$	0.8
Research and development	3.1		2.4
Sales and marketing	2.3		2.2
General and administrative	10.9		8.3
Total operating expense	16.3		12.9
Total stock-based compensation expense	$	17.4	$	13.7