Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jul. 01, 2022
Cash flows from operating activities:
Net (loss) income	$ (137,640)	$ (28,335)	$ 11,275
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization expense	88,030	97,329	93,417
Stock-based compensation expense	25,669	27,753	38,293
Stock-based matching contributions on defined contribution plan	15,853	15,665	0
Benefit for deferred income taxes	(31,511)	(59,647)	(2,419)
Cash settlement for termination of interest rate swap	7,403		0
Provisions for bad debt	15,301	400	106
Other non-cash items	452	(1,146)	(603)
Changes in operating assets and liabilities:
Accounts receivable, unbilled receivables, and costs in excess of billings	76,458	(58,718)	(146,477)
Inventory	130	(64,061)	(40,902)
Prepaid income taxes	0	7,433	(4,977)
Prepaid expenses and other current assets	(1,693)	2,942	(4,396)
Other non-current assets	148	3,769	6,117
Accounts payable, accrued expenses and accrued compensation	741	(16,732)	58,395
Deferred revenues and customer advances	17,307	40,701	(18,998)
Income taxes payable	(11,217)	9,907	1,009
Other non-current liabilities	(5,049)	(4,509)	(8,709)
Net cash provided by (used in) operating activities	60,382	(21,254)	(18,869)
Cash flows from investing activities:
Purchases of property and equipment	(34,291)	(38,796)	(27,656)
Other investing activities	0	235	(3,200)
Acquisition of businesses, net of cash acquired	0	0	243,464
Net cash used in investing activities	(34,291)	(38,561)	(274,320)
Cash flows from financing activities:
Proceeds from employee stock plans	4,642	5,492	5,371
Payments for retirement of common stock	(31)	(63)	(8,206)
Payments under credit facilities	(25,000)	(80,000)	0
Borrowings under credit facilities	105,000	140,000	251,500
Payments of deferred financing and offering costs	(1,931)	0	(2,911)
Net cash provided by financing activities	82,680	65,429	245,754
Effect of exchange rate changes on cash and cash equivalents	187	295	(750)
Net increase (decrease) in cash and cash equivalents	108,958	5,909	(48,185)
Cash and cash equivalents at beginning of year	71,563	65,654	113,839
Cash and cash equivalents at end of year	180,521	71,563	65,654
Cash paid (received) during the period for:
Interest	37,423	27,288	5,492
Income taxes (refunded) paid, net	(9,315)	24,243	14,121
Non-cash investing activity: Purchases of property and equipment incurred but not yet paid	$ 4,051	$ 6,475	$ 6,919