Stock-Based Compensation (Tables)

3 Months Ended

Dec. 25, 2021

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation Expense in Consolidated Statements of Operations

The following presents stock-based compensation expense in the Company’s Consolidated Statements of Income:

	Three Months Ended
	December 25, 2021		December 26, 2020
Cost of revenues	$	2.3	$	2.2
Research and development	2.7		2.5
Selling and marketing	2.6		2.7
General and administrative	11.1		11.2
	$	18.7	$	18.6

Weighted-Average Assumptions Utilized to Value Stock Options

The Company uses a binomial model to determine the fair value of its stock options. The weighted-average assumptions utilized to value these stock options are indicated in the following table:

	Three Months Ended
	December 25, 2021			December 26, 2020
Risk-free interest rate	1.1		%	0.4		%
Expected volatility	34.2		%	35.0		%
Expected life (in years)	4.8			4.8
Dividend yield	—			—
Weighted average fair value of options granted	$	21.03		$	19.86