Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	U.S. Navy Sales Revenue, Net [Member] Customer Concentration Risk	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance (in shares) at Jul. 01, 2022			55,680,000
Beginning Balance at Jul. 01, 2022	$ 1,537,185		$ 557	$ 1,145,323	$ 385,774	$ 5,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)			738,000
Issuance of common stock under employee stock incentive plans	0		$ 7	(7)
Issuance of common stock under employee stock purchase plan	5,492		$ 2	5,490
Issuance of common stock under defined contribution plan (in shares)			400,000
Issuance of common stock under defined contribution plan	18,370		$ 4	18,366
Retirement of common shares (in shares)			(1,000)
Retirement of common stock	(63)			(63)
Stock-based compensation	27,738			27,738
Net loss	(28,335)				(28,335)
Other comprehensive income (loss)	6,298					6,298
Ending Balance (in shares) at Jun. 30, 2023			56,962,000
Ending Balance at Jun. 30, 2023	1,566,685		$ 570	1,196,847	357,439	11,829
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)			476,000
Issuance of common stock under employee stock incentive plans	0		$ 5	(5)
Issuance of common stock under employee stock purchase plan	4,642		$ 2	4,640
Issuance of common stock under defined contribution plan (in shares)			490,000
Issuance of common stock under defined contribution plan	16,049		$ 5	16,044
Retirement of common shares (in shares)			(1,000)
Retirement of common stock	(31)		$ (1)	(30)
Stock-based compensation	24,906			24,906
Net loss	(137,640)				(137,640)
Other comprehensive income (loss)	$ (1,836)					(1,836)
Ending Balance (in shares) at Jun. 28, 2024	58,093,528		58,094,000
Ending Balance at Jun. 28, 2024	$ 1,472,775		$ 581	1,242,402	219,799	9,993
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)			409,000
Issuance of common stock under employee stock incentive plans	0		$ 4	(4)
Issuance of common stock under employee stock purchase plan (in shares)			125,000
Issuance of common stock under employee stock purchase plan	3,661		$ 1	3,660
Issuance of common stock under defined contribution plan (in shares)			375,000
Issuance of common stock under defined contribution plan	15,148		$ 4	15,144
Stock-based compensation	26,276			26,276
Net loss	(37,904)				(37,904)
Other comprehensive income (loss)	$ (6,495)					(6,495)
Ending Balance (in shares) at Jun. 27, 2025	59,003,174		59,003,000
Ending Balance at Jun. 27, 2025	$ 1,473,461		$ 590	$ 1,287,478	$ 181,895	$ 3,498
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Concentration risk, percent		10.00%