Summary of Significant Accounting Policies - Schedule of Revenue Recognized (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Residential Solar Installation
Revenue		$ 38,579	$ 5,536	$ 114,097	$ 20,068
Total revenue	[1]	70,005	5,536	220,269	20,068
Total revenue recognized over time		48,022	5,536	154,172	20,068
Total revenue recognized at a point in time		21,983		66,097
New Homes Business [Member]
Residential Solar Installation
Revenue		27,116		101,862
Sunder [Member]
Residential Solar Installation
Revenue		4,310		4,310
Revenue Recognized Over Time [Member] | Residential Solar Installation [Member]
Residential Solar Installation
Revenue		38,579	5,536	114,097	20,068
Revenue Recognized Over Time [Member] | New Homes Business [Member]
Residential Solar Installation
Revenue		9,443		40,075
Revenue Recognized at a Point in Time [Member] | New Homes Business [Member]
Residential Solar Installation
Revenue		17,673		61,787
Revenue Recognized at a Point in Time [Member] | New Homes Business One [Member]
Residential Solar Installation
Revenue		$ 4,310		$ 4,310

[1] Revenue is net of dealer fees attributable to related party of $0.3 million and $1.6 million in the thirteen and thirty-nine week periods ended September 28, 2025, respectively. Revenue is net of dealer fees attributable to related party of $1.6 million in each of the thirteen and thirty-nine week periods ended September 29, 2024. Refer to Note 16 – Related Party Transactions for details.