Related Party Transactions (Tables)

9 Months Ended

Sep. 27, 2025

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

	Three Months Ended September 27, 2025						Three Months Ended September 28, 2024
(in millions)	Powersem		EB Tech		ATEC		Powersem		EB Tech		ATEC
Sales to related party	$	0.3	$	—	$	—	$	0.3	$	—	$	—
Purchase material/service from related party	0.6		0.1		2.4		0.6		0.2		0.6
	Nine Months Ended September 27, 2025						Nine Months Ended September 28, 2024
(in millions)	Powersem		EB Tech		ATEC		Powersem		EB Tech		ATEC
Sales to related party	$	0.9	$	—	$	—	$	1.2	$	—	$	—
Purchase material/service from related party	1.7		0.8		5.7		3.0		0.6		3.5
	September 27, 2025						December 28, 2024
(in millions)	Powersem		EB Tech		ATEC		Powersem		EB Tech		ATEC
Accounts receivable balance	$	0.1	$	—	$	—	$	—	$	—	$	—
Accounts payable balance	0.3		—		0.9		0.7		0.1		0.7