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Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025	Dec. 27, 2025
Related Party Transaction
Sales to related party	$ 738,781	$ 613,413	$ 1,395,750	$ 1,167,720
Accounts receivable balance	423,590		423,590		$ 363,215
Accounts payable balance	$ 248,972		$ 248,972		211,079
Related Party \| Powersem
Related Party Transaction
Ownership percentage (as a percent)	45.00%		45.00%
Related Party \| EB Tech
Related Party Transaction
Ownership percentage (as a percent)	15.00%		15.00%
Related Party \| ATEC
Related Party Transaction
Ownership percentage (as a percent)	24.00%		24.00%
Related Party \| Powersem
Related Party Transaction
Sales to related party	$ 400	300	$ 700	600
Purchase of material/service from related party	400	600	900	1,100
Accounts receivable balance	100		100		0
Accounts payable balance	200		200		100
Related Party \| EB Tech
Related Party Transaction
Sales to related party	0	0	0	0
Purchase of material/service from related party	100	500	200	700
Accounts receivable balance	0		0		0
Accounts payable balance	100		100		100
Related Party \| ATEC
Related Party Transaction
Sales to related party	0	0	0	0
Purchase of material/service from related party	2,800	$ 1,400	5,000	$ 3,300
Accounts receivable balance	0		0		0
Accounts payable balance	$ 1,200		$ 1,200		$ 2,100