Stockholder's Equity (Tables)

3 Months Ended

Dec. 27, 2019

Stockholders' Equity Note [Abstract]

Schedule of share-based compensation expense

The following table summarizes the share-based compensation expense by line item in the Statements of Operations (in millions):

	Three Months Ended
	December 27, 2019		December 28, 2018
Cost of goods sold	$	4.2	$	3.6
Research and development	14.8		12.5
Selling, general and administrative	14.6		4.7
Total share-based compensation	$	33.6	$	20.8