Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Retained Earnings
Beginning Balance (in shares) at Sep. 29, 2018		24,299
Beginning balance at Sep. 29, 2018	$ 1,314,464	$ 242	$ 78,700	$ 2,833	$ 1,232,689
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under stock plans, net of shares withheld for employee taxes (in shares)		287
Common stock issued under stock plans, net of shares withheld for employee taxes	(3,368)	$ 2	(3,370)
Repurchases of common stock (in shares)		(604)
Repurchase of common stock	(77,410)	$ (6)	(77,404)
Stock-based compensation	36,394		36,394
Net income (loss)	53,825				53,825
Other comprehensive loss, net of tax	(39,169)			(39,169)
Ending balance (in shares) at Sep. 28, 2019		23,982
Ending balance at Sep. 28, 2019	1,284,736	$ 238	34,320	(36,336)	1,286,514
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under stock plans, net of shares withheld for employee taxes (in shares)		275
Common stock issued under stock plans, net of shares withheld for employee taxes	(187)	$ 3	(190)
Stock-based compensation	46,145		46,145
Net income (loss)	(414,139)				(414,139)
Other comprehensive loss, net of tax	$ 10,669			10,669
Ending balance (in shares) at Oct. 03, 2020	24,257	24,257
Ending balance at Oct. 03, 2020	$ 927,224	$ 241	80,275	(25,667)	872,375
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under stock plans, net of shares withheld for employee taxes (in shares)		281
Common stock issued under stock plans, net of shares withheld for employee taxes	2,121	$ 3	2,118
Stock-based compensation	40,742		40,742
Net income (loss)	(106,751)				(106,751)
Other comprehensive loss, net of tax	$ 4,849			4,849
Ending balance (in shares) at Oct. 02, 2021	24,538	24,538
Ending balance at Oct. 02, 2021	$ 868,185	$ 244	$ 123,135	$ (20,818)	$ 765,624