Organization and Summary of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 28, 2020	Jun. 30, 2019
Property, plant and equipment
Gross	$ 266,216	$ 287,421
Less: accumulated depreciation	(161,068)	(169,301)
Total	105,148	118,120
Land and improvements
Property, plant and equipment
Gross	5,002	5,679
Buildings and improvements
Property, plant and equipment
Gross	33,179	35,742
Machinery and equipment
Property, plant and equipment
Gross	$ 228,035	$ 246,000

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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