Other Financial Data - Schedule of Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jul. 02, 2023
Receivables, net:
Customer receivables	$ 66,537	$ 79,174
Allowance for uncollectible accounts	(2,452)	(1,362)
Reserves for quality claims	(709)	(682)
Net customer receivables	63,376	77,130
Banker's acceptance notes	5,446	5,870
Other receivables	761	725
Total receivables, net	69,583	83,725
Inventories:
Raw materials	58,448	59,983
Supplies	11,871	11,787
Work in process	7,077	6,633
Finished goods	65,646	78,032
Gross inventories	143,042	156,435
Net realizable value adjustment	(7,366)	(5,625)
Total inventories	135,676	150,810
Other current assets:
Vendor deposits	4,608	3,863
Prepaid expenses and other	3,826	2,584
Value-added taxes receivable	2,893	3,398
Contract assets	769	549
Recovery of non-income taxes, net	194	1,933
Total other current assets	12,290	12,327
Property, plant and equipment, net:
Gross property, plant and equipment	904,507	906,739
Less: accumulated depreciation	(688,687)	(682,768)
Less: accumulated amortization – finance leases	(6,385)	(5,450)
Total property, plant and equipment, net	209,435	218,521
Other non-current assets:
Recovery of taxes	6,156	5,957
Investments in unconsolidated affiliates	3,101	2,997
Grantor trust	2,618	2,496
Intangible assets, net	736	1,210
Other	2,228	1,848
Total other non-current assets	14,839	14,508
Other current liabilities:
Payroll and fringe benefits	4,827	6,981
Severance	2,351
Incentive compensation	1,856	298
Dissolution of joint venture	1,550
Utilities	1,476	1,634
Deferred revenue	1,293	1,441
Property taxes, interest and other	4,056	2,578
Total other current liabilities	17,409	12,932
Other long-term liabilities:
Nonqualified deferred compensation plan obligation	2,675	2,659
Uncertain tax positions	1,032	1,973
Other	426	468
Total other long-term liabilities	4,133	5,100
Land
Property, plant and equipment, net:
Gross property, plant and equipment	2,512	2,512
Land Improvements
Property, plant and equipment, net:
Gross property, plant and equipment	16,445	16,443
Building and Building Improvements
Property, plant and equipment, net:
Gross property, plant and equipment	168,231	167,589
Assets Held Under Finance Leases
Property, plant and equipment, net:
Gross property, plant and equipment	18,030	16,397
Machinery and Equipment
Property, plant and equipment, net:
Gross property, plant and equipment	659,553	656,431
Computers Software And Office Equipment
Property, plant and equipment, net:
Gross property, plant and equipment	25,370	26,654
Transportation Equipment
Property, plant and equipment, net:
Gross property, plant and equipment	10,731	10,710
Asset under Construction
Property, plant and equipment, net:
Gross property, plant and equipment	$ 3,635	$ 10,003