Consolidated Statements of Changes in Redeemable Preferred and Common Units and Equity (Deficit) - USD ($) $ in Thousands	Total	Common Units, Class C	Common Units, Class C Previously Reported	Common Units, Class C Revision of Prior Period, Adjustment	Preferred Units, Class B-1	Preferred Units, Class B-1 Previously Reported	Preferred Units, Class B-1 Revision of Prior Period, Adjustment	Preferred Units, Class B	Preferred Units, Class B Previously Reported	Preferred Units, Class B Revision of Prior Period, Adjustment	Common Stock Common Voting Units, Class A	Common Stock Common Voting Units, Class A Previously Reported	Common Stock Common Voting Units, Class A Revision of Prior Period, Adjustment	Common Stock Class A Common Stock	Common Stock Class A Common Stock Previously Reported	Common Stock Class V-1 Common Stock	Common Stock Class V-1 Common Stock Previously Reported	Common Stock Class V-3 Common Stock	Common Stock Class V-3 Common Stock Previously Reported	Additional Paid-In Capital - Warrants	Additional Paid-In Capital - Warrants Previously Reported	Additional Paid-In Capital	Additional Paid-In Capital Previously Reported	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Previously Reported	Accumulated Deficit	Accumulated Deficit Previously Reported	Noncontrolling Interest	Noncontrolling Interest Previously Reported
Beginning balance (in shares) at Sep. 28, 2019		24,922,109	428,571	24,493,538	24,041,300	1	24,041,299	47,508,300	1	47,508,299
Beginning balance at Sep. 28, 2019		$ 44	$ 44		$ 112,469	$ 112,469		$ 416,332	$ 416,332
Increase (Decrease) in Temporary Equity [Roll Forward]
Granted (in shares)		2,476,504
Forfeited (in shares)		(2,476,504)
Unit-based compensation		$ 71
Accretion of Class C Units to redemption value		$ 1,910
Member contributions					100,000
Preferred return					$ 8,748			$ 20,817
Ending balance (in shares) at Sep. 26, 2020		24,922,109			24,041,300			47,508,300
Ending balance at Sep. 26, 2020		$ 2,025			$ 221,217			$ 437,149
Beginning balance (in shares) at Sep. 28, 2019											367,548,946	5,997,632	361,551,314	0	0	0	0	0	0
Beginning balance at Sep. 28, 2019	$ (701,646)										$ 16,809	$ 16,809		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ (2,593)	$ (2,593)	$ (715,862)	$ (715,862)	$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of Class C Units to redemption value	(1,910)																									(1,910)
Preferred return	(29,565)																									(29,565)
Net loss	(109,521)																									(109,521)
Other comprehensive loss	(1,825)																							(1,825)
Ending balance (in shares) at Sep. 26, 2020											367,548,946			0		0		0
Ending balance at Sep. 26, 2020	(844,467)										$ 16,809			$ 0		$ 0		$ 0		0		0		(4,418)		(856,858)		0
Increase (Decrease) in Temporary Equity [Roll Forward]
Granted (in shares)		2,997,310
Forfeited (in shares)		(2,997,310)
Unit-based compensation		$ 97
Accretion of Class C Units to redemption value		$ 142,853
Preferred return					$ 11,061			$ 21,858
Ending balance (in shares) at Sep. 25, 2021		24,922,109	428,571		24,041,300	1		47,508,300	1
Ending balance at Sep. 25, 2021		$ 144,975			$ 232,278			$ 459,007
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of Class C Units to redemption value	(142,853)																									(142,853)
Preferred return	(32,919)																									(32,919)
Provision for warrants	26,999																			26,999
Net loss	(122,314)																									(122,314)
Other comprehensive loss	2,326																							2,326
Ending balance (in shares) at Sep. 25, 2021											367,548,946			0		0		0
Ending balance at Sep. 25, 2021	(1,113,228)										$ 16,809			$ 0		$ 0		$ 0		26,999		0		(2,092)		(1,154,944)		0
Ending balance (in shares) at Sep. 24, 2022		0			0			0
Ending balance at Sep. 24, 2022		$ 0			$ 0			$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(139,089)
Ending balance (in shares) at Sep. 24, 2022											0			57,718,836		79,237,388		416,933,025
Ending balance at Sep. 24, 2022	$ 68,940										$ 0			$ 6		$ 8		$ 42		$ 58,126		$ 1,237,865		$ (2,294)		$ (1,286,569)		$ 61,756