Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 25, 2017	Jun. 26, 2016	Jun. 28, 2015
Components Of Deferred Tax Assets And Liabilities [Abstract]
Investments, including unconsolidated affiliates	$ 7,737	$ 8,337
State tax credits	338	361
Accrued liabilities and valuation reserves	3,952	3,660
NOL carryforwards	7,854	3,952
Intangible assets, net	3,932	4,349
Incentive compensation plans	2,487	3,297
Foreign tax credits	789
Capital loss carryforward	1,746
Research credit carryforward	1,115
Other items	5,224	4,668
Total gross deferred tax assets	35,174	28,624
Valuation allowance	(17,957)	(13,550)	$ (15,606)
Net deferred tax assets	17,217	15,074
Property, plant and equipment	(26,417)	(17,098)
Other	(63)	(580)
Total deferred tax liabilities	(26,480)	(17,678)
Net deferred tax liabilities	$ (9,263)	$ (2,604)