Shareholders' Equity (Tables)

9 Months Ended

Sep. 28, 2018

Equity [Abstract]

Summary Of Stock-Based Compensation Expense, Net Of Tax

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

	Third Quarter of				First Three Quarters of
	2018		2017		2018		2017
(In millions)
Cost of sales	$	1.1	$	1.1	$	3.3	$	2.8
Research and development	3.9		2.7		10.2		7.7
Sales and marketing	2.5		2.4		7.2		7.0
General and administrative	11.3		9.9		32.4		27.5
Total operating expense	17.7		15.0		49.8		42.2
Total stock-based compensation expense	$	18.8	$	16.1	$	53.1	$	45.0