CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance, beginning of period (in shares) at Oct. 03, 2020		113,915,233		1,571,138
Balance, beginning of period at Oct. 03, 2020	$ 297,839	$ 114	$ 548,993	$ (20,886)	$ (228,492)	$ (1,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)		7,075,338
Issuance of common stock pursuant to equity incentive plans	69,505	$ 7	69,498
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs") (in shares)				(307,980)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	(5,118)			$ (5,118)
Stock-based compensation expense	14,844		14,844
Net income	132,292				132,292
Change in foreign currency translation adjustment	847					847
Balance, end of period (in shares) at Jan. 02, 2021		120,990,571		1,879,118
Balance, ending of period at Jan. 02, 2021	510,209	$ 121	633,335	$ (26,004)	(96,200)	(1,043)
Balance, beginning of period (in shares) at Oct. 02, 2021		128,857,085		1,871,812
Balance, beginning of period at Oct. 02, 2021	$ 569,042	$ 129	690,462	$ (50,276)	(69,897)	(1,376)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)	1,076,077	2,030,373
Issuance of common stock pursuant to equity incentive plans	$ 13,232	$ 2	13,230
Retirement of treasury stock (in shares)	(1,010,286)	(1,010,286)		(1,010,286)
Retirement of treasury stock	$ 0	$ (1)	(38,647)	$ 38,648
Purchase of common stock (in shares)	(1,032,249)			(1,032,249)
Repurchase of common stock	$ (31,365)			$ (31,365)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs") (in shares)				(344,198)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	(11,882)			$ (11,882)
Stock-based compensation expense	17,459		17,459
Net income	123,481				123,481
Change in foreign currency translation adjustment	(360)					(360)
Balance, end of period (in shares) at Jan. 01, 2022		129,877,172		2,237,973
Balance, ending of period at Jan. 01, 2022	$ 679,607	$ 130	$ 682,504	$ (54,875)	$ 53,584	$ (1,736)