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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024	Dec. 29, 2024	Dec. 31, 2023	Sep. 30, 2024
Goodwill and Other Intangible Assets [Line Items]
Goodwill	$ 42,911		$ 42,911		$ 18,476
Aggregate amortization expense for intangible assets	$ 700	$ 0	$ 2,100	$ 0	$ 700
Weighted average remaining life					8 years 1 month 6 days
Residential Solar Installation [Member]
Goodwill and Other Intangible Assets [Line Items]
Goodwill							$ 18,300
New Homes Business [Member]
Goodwill and Other Intangible Assets [Line Items]
Goodwill							$ 200

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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