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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024	Sep. 29, 2024
Impairment of goodwill			$ 0		$ 0
Intangible carrying value	$ 15,176,000		15,176,000		16,446,000
Impairment of intangible assets		$ 42,600,000	0	$ 42,584,000
Intangible assets amortization	$ 400,000		$ 1,200,000
Trademarks
Estimated useful life	10 years		10 years
Intangible carrying value	$ 12,960,000		$ 12,960,000		$ 14,040,000
Dogfish Head
Estimated useful life						10 years
Intangible carrying value		55,600,000		55,600,000
Estimated fair value		14,400,000		14,400,000
Coney Island
Intangible carrying value		1,000,000		1,000,000
Estimated fair value		0		0
Angel City
Intangible carrying value		400,000		400,000
Estimated fair value		$ 0		$ 0

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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