Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Capital in Excess of Par Value	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance (in shares) at Sep. 29, 2019			82,159,002
Beginning balance at Sep. 29, 2019	$ (737,584)	$ (2,870)	$ 822	$ 480,322	$ 1,577,034	$ (2,870)	$ (140,006)	$ (2,655,756)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock plans, including tax benefit (in shares)			210,712
Shares issued under stock plans, including tax benefit	4,647		$ 2	4,645
Share-based compensation	4,394			4,394
Dividends declared	(27,563)			154	(27,717)
Purchases of treasury stock	(153,550)							(153,550)
Net earnings	89,764				89,764
Other comprehensive income	29,401						29,401
Ending balance (in shares) at Sep. 27, 2020			82,369,714
Ending balance at Sep. 27, 2020	(793,361)		$ 824	489,515	1,636,211		(110,605)	(2,809,306)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock plans, including tax benefit (in shares)			166,345
Shares issued under stock plans, including tax benefit	6,647		$ 1	6,646
Share-based compensation	4,048			4,048
Dividends declared	(37,322)			232	(37,554)
Purchases of treasury stock	(200,000)							(200,000)
Net earnings	165,755				165,755
Other comprehensive income	36,351						36,351
Ending balance (in shares) at Oct. 03, 2021			82,536,059
Ending balance at Oct. 03, 2021	(817,882)		$ 825	500,441	1,764,412		(74,254)	(3,009,306)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock plans, including tax benefit (in shares)			44,540
Shares issued under stock plans, including tax benefit	51		$ 1	50
Share-based compensation	7,122			7,122
Dividends declared	(36,985)			261	(37,246)
Purchases of treasury stock	(25,000)							(25,000)
Fair value of assumed Del Taco RSAs attributable to pre-combination service	449			449
Net earnings	115,781				115,781
Other comprehensive income	20,272						20,272
Ending balance (in shares) at Oct. 02, 2022			82,580,599
Ending balance at Oct. 02, 2022	$ (736,192)		$ 826	$ 508,323	$ 1,842,947		$ (53,982)	$ (3,034,306)