Fair Value of Financial Instruments - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	12 Months Ended
Jul. 03, 2020	Jun. 30, 2019
Assets:
Gain on Sale of Investments	$ 4,310
Proceeds from Sale of Other Investments	3,810
Assets, Fair Value Adjustment	2,007
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement [Member]
Assets:
Fair value measurement disclosure	12,013	$ 31,522
Fair Value, Measurements, Recurring \| Equity Securities [Member] \| Estimate of Fair Value Measurement [Member]
Assets:
Fair value measurement disclosure	2,007
Fair Value, Measurements, Recurring \| Certificates of Deposit [Member] \| Estimate of Fair Value Measurement [Member]
Assets:
Fair value measurement disclosure	10,006	31,522
Fair Value, Measurements, Recurring \| Level 1
Assets:
Fair value measurement disclosure	2,007	0
Fair Value, Measurements, Recurring \| Level 1 \| Equity Securities [Member]
Assets:
Fair value measurement disclosure	2,007
Fair Value, Measurements, Recurring \| Level 1 \| Certificates of Deposit [Member]
Assets:
Fair value measurement disclosure	0	0
Fair Value, Measurements, Recurring \| Level 2
Assets:
Fair value measurement disclosure	10,006	31,522
Fair Value, Measurements, Recurring \| Level 2 \| Equity Securities [Member]
Assets:
Fair value measurement disclosure	0
Fair Value, Measurements, Recurring \| Level 2 \| Certificates of Deposit [Member]
Assets:
Fair value measurement disclosure	10,006	31,522
Fair Value, Measurements, Recurring \| Level 3
Assets:
Fair value measurement disclosure	0	0
Fair Value, Measurements, Recurring \| Level 3 \| Equity Securities [Member]
Assets:
Fair value measurement disclosure	0
Fair Value, Measurements, Recurring \| Level 3 \| Certificates of Deposit [Member]
Assets:
Fair value measurement disclosure	$ 0	$ 0

Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- References

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- Definition

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(a))
-URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(13))
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(9)(a))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(7)(c))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Definition

Amount of cash inflow from the sale of investments classified as other.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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