Net Income Per Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Numerator:
Net income	$ 80,947	$ 75,188
Denominator:
Weighted-average shares of common stock - basic (in shares)	125,181,717	127,212,245
Weighted-average shares of common stock - diluted (in shares)	126,742,153	131,502,986
Net income per share attributable to common stockholders:
Net income per share attributable to common stockholders - basic (in USD per share)	$ 0.65	$ 0.59
Net income per share attributable to common stockholders - diluted (in USD per share)	$ 0.64	$ 0.57
Employee Stock Option
Denominator:
Effect of potentially dilutive stock options, RSUs, and PSUs (in shares)	133,009	1,802,786
Restricted stock units
Denominator:
Effect of potentially dilutive stock options, RSUs, and PSUs (in shares)	1,424,312	2,460,948
Performance Stock Units
Denominator:
Effect of potentially dilutive stock options, RSUs, and PSUs (in shares)	3,115	27,007