Goodwill and intangible assets Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 03, 2021	Jun. 27, 2020	Jun. 29, 2019
Goodwill and intangible assets
Intangible asset amortization expense	$ 41,033	$ 81,139	$ 83,682
Investment impairment	$ 15,200

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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