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Emergence from Voluntary Reorganization under Chapter 11- Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended	6 Months Ended
	Jun. 24, 2025	Jun. 24, 2025	Jun. 24, 2025	Sep. 30, 2025	Dec. 28, 2024
Reorganization, Chapter 11 [Line Items]
Reorganization items, net		$ (1,143,918)	$ (1,143,918)
Total debt				$ 465,000	$ 1,445,000
Successor Common Stock [Member] \| 2025 Plan [Member]
Reorganization, Chapter 11 [Line Items]
Number of shares authorized	1,000	1,000	1,000
Successor Common Stock [Member] \| Management Incentive Plan [Member] \| Maximum
Reorganization, Chapter 11 [Line Items]
Percentage of successor common stock for predecessor equity interest holders	10.00%	10.00%	10.00%
Reorganization, Chapter 11, Plan Effect Adjustment
Reorganization, Chapter 11 [Line Items]
Reorganization items, net		$ 1,143,918
Reorganization, Chapter 11, Plan Effect Adjustment \| Successor Common Stock [Member]
Reorganization, Chapter 11 [Line Items]
Pro rata share of successor common stock for each first lien claim holder	91.00%	91.00%	91.00%
Percentage of successor common stock for predecessor equity interest holders	9.00%	9.00%	9.00%
Reorganization, Chapter 11, Plan Effect Adjustment \| New Term Loan Facility [Member]
Reorganization, Chapter 11 [Line Items]
Debt instrument, mature date	Jun. 24, 2030
Total debt	$ 465,000	$ 465,000	$ 465,000