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Related Party Transactions (Details) - USD ($)			3 Months Ended
	Apr. 25, 2024	Dec. 02, 2021	Jun. 28, 2024	Jun. 30, 2023	Mar. 29, 2024	Jul. 01, 2022
Related Party Transaction [Line Items]
Trade accounts receivable, net			$ 63,358,000		$ 118,508,000
Outstanding balance			195,811,000		245,102,000
Periodic payment			984,000
Interest income			46,000
Polar Semiconductor, LLC
Related Party Transaction [Line Items]
Exchange for equity interests amounts of transaction	$ 175,000
Additional direct funding and tax credits amount	$ 310,700
PSL
Related Party Transaction [Line Items]
Purchases from related party			14,956,000	$ 16,102,000
Amounts due to related party			4,892,000		1,621,000
PSL | Initial PSL Loan | Loans Payable
Related Party Transaction [Line Items]
Principal amount		$ 7,500,000				$ 7,500,000
Interest rate		1.26%
Term		4 years
Outstanding balance			7,500,000
PSL | Secondary PSL Loan | Loans Payable
Related Party Transaction [Line Items]
Interest rate		2.99%
Sanken
Related Party Transaction [Line Items]
Other accounts receivable from related party			0		160,000
Sanken | Sanken Distribution Agreement, One-Time Sales Return
Related Party Transaction [Line Items]
Trade accounts receivable, net			$ 0		0
Sanken
Related Party Transaction [Line Items]
Ownership percentage by majority shareholder			50.80%
Amounts due to related party			$ 3,000		$ 0
Sanken | Polar Semiconductor, LLC
Related Party Transaction [Line Items]
Ownership percentage by majority shareholder			70.00%
Allegro Microsystems, Inc. | Polar Semiconductor, LLC
Related Party Transaction [Line Items]
Ownership percentage by majority shareholder	10.20%		30.00%

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