Condensed Consolidated Statement of Changes in Shareholders' Equity Statement - USD ($) $ in Millions	Total	Ordinary Shares	Treasury Shares	Additional Paid-In Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Loss
Shares, Outstanding		94,100,000	9,500,000
Beginning balance at Dec. 25, 2020	$ 1,019.2	$ 18.8	$ (1,616.1)	$ 5,587.6	$ (2,961.5)	$ (9.6)
Net loss	(143.9)				(143.9)
Other Comprehensive Income (Loss), Net of Tax	0.1					0.1
Vesting of restricted shares (in shares)		0	0
Vesting of restricted shares (in usd)	(0.1)	$ 0.0	$ 0.0	(0.1)
Share-based compensation	3.6			3.6
Ending balance at Mar. 26, 2021	878.9	18.8	(1,616.1)	5,591.1	(3,105.4)	(9.5)
Beginning balance at Dec. 25, 2020	1,019.2	18.8	(1,616.1)	5,587.6	(2,961.5)	(9.6)
Net loss					(513.4)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(0.9)
Ending balance at Sep. 24, 2021	513.4	$ 18.9	$ (1,616.1)	5,596.0	(3,474.9)	(10.5)
Shares, Outstanding		94,100,000	9,500,000
Beginning balance at Mar. 26, 2021	878.9	$ 18.8	$ (1,616.1)	5,591.1	(3,105.4)	(9.5)
Net loss	(105.8)				(105.8)
Other Comprehensive Income (Loss), Net of Tax	0.3					0.3
Vesting of restricted shares (in shares)		200,000	100,000
Vesting of restricted shares (in usd)	0.2	$ 0.1	$ 0.0	0.1
Share-based compensation	2.4			2.4
Ending balance at Jun. 25, 2021	776.0	$ 18.9	$ (1,616.1)	5,593.6	(3,211.2)	(9.2)
Shares, Outstanding		94,300,000	9,600,000
Net loss	(263.7)				(263.7)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1.3)
Other Comprehensive Income (Loss), Net of Tax	(1.3)					(1.3)
Vesting of restricted shares (in shares)		0	0
Vesting of restricted shares (in usd)	0.0	$ 0.0	$ 0.0	0.0
Share-based compensation	2.4			2.4
Ending balance at Sep. 24, 2021	$ 513.4	$ 18.9	$ (1,616.1)	5,596.0	(3,474.9)	(10.5)
Shares, Outstanding		94,300,000	9,600,000
Shares, Outstanding		94,300,000	9,600,000
Beginning balance, treasury shares (in shares) at Dec. 31, 2021	9,569,645
Beginning balance at Dec. 31, 2021	$ 313.4	$ 18.9	$ (1,616.1)	5,597.8	(3,678.9)	(8.3)
Net loss	(119.6)				(119.6)
Share-based compensation	1.2			1.2
Ending balance at Apr. 01, 2022	$ 195.0	18.9	(1,616.1)	5,599.0	(3,798.5)	(8.3)
Beginning balance, treasury shares (in shares) at Dec. 31, 2021	9,569,645
Beginning balance at Dec. 31, 2021	$ 313.4	18.9	(1,616.1)	5,597.8	(3,678.9)	(8.3)
Net loss					(313.1)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1.5)
Ending balance at Jun. 16, 2022	2,203.6	$ 0.1	$ 0.0	2,203.5	0.0	0.0
Shares, Outstanding		94,300,000	9,600,000
Beginning balance at Apr. 01, 2022	195.0	$ 18.9	$ (1,616.1)	5,599.0	(3,798.5)	(8.3)
Net loss	(193.5)				(193.5)
Other Comprehensive Income (Loss), Net of Tax	(1.5)					(1.5)
Share-based compensation	0.5			0.5
Cancellation of Predecessor equity, Shares		(94,300,000)	(9,600,000)
Cancellation of Predecessor equity	(0.5)	$ (18.9)	$ 1,616.1	(5,599.5)	3,992.0	9.8
Stock Issued During Period, Value, New Issues	2,189.7	$ 0.1		2,189.6
Stock Issued During Period, Shares, New Issues		13,200,000
Adjustments to Additional Paid in Capital, Warrant Issued	13.9			13.9
Ending balance at Jun. 16, 2022	2,203.6	$ 0.1	$ 0.0	2,203.5	0.0	0.0
Shares, Outstanding		13,200,000	0
Net loss	(63.7)				(63.7)
Other Comprehensive Income (Loss), Net of Tax	(1.7)					(1.7)
Ending balance at Jul. 01, 2022	2,138.2	$ 0.1	$ 0.0	2,203.5	(63.7)	(1.7)
Beginning balance at Jun. 16, 2022	2,203.6	0.1	0.0	2,203.5	0.0	0.0
Net loss					(348.6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (6.4)
Ending balance, ordinary shares (in shares) at Sep. 30, 2022	0
Ending balance, treasury shares (in shares) at Sep. 30, 2022	0
Ending balance at Sep. 30, 2022	$ 1,849.1	$ 0.1	$ 0.0	2,204.0	(348.6)	(6.4)
Shares, Outstanding		13,200,000	0
Beginning balance at Jul. 01, 2022	2,138.2	$ 0.1	$ 0.0	2,203.5	(63.7)	(1.7)
Net loss	(284.9)				(284.9)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(4.7)
Other Comprehensive Income (Loss), Net of Tax	(4.7)					(4.7)
Share-based compensation	$ 0.5			0.5
Ending balance, ordinary shares (in shares) at Sep. 30, 2022	0
Ending balance, treasury shares (in shares) at Sep. 30, 2022	0
Ending balance at Sep. 30, 2022	$ 1,849.1	$ 0.1	$ 0.0	$ 2,204.0	$ (348.6)	$ (6.4)
Shares, Outstanding		13,200,000	0