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Goodwill and Other Intangible Assets - Change in Carrying Value of Goodwill (Detail) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 24, 2025	Sep. 30, 2025	Jun. 24, 2025	Dec. 28, 2024
Goodwill [Line Items]
Beginning balance		$ 199,053	$ 239,583	$ 243,441
Effect of exchange rate changes			2,839	(3,858)
Fresh start accounting adjustments	$ (43,369)
Goodwill acquired during the period		1,020
Ending balance	199,053	$ 200,073	199,053	$ 239,583
Prior to Fresh Start Accounting
Goodwill [Line Items]
Ending balance	$ 242,422		$ 242,422

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