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
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended			6 Months Ended
	Dec. 29, 2019	Sep. 29, 2019	Dec. 30, 2018	Dec. 29, 2019	Dec. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets				$ 0
Amortization of acquisition-related intangibles	$ 3,600,000		$ 3,900,000	7,200,000	$ 7,800,000
Increase of right-of-use assets				15,500,000	0
Accounting Standards Update 2016-02
Finite-Lived Intangible Assets [Line Items]
Increase of right-of-use assets		$ 900,000
Patent and licensing rights
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 2,300,000		$ 2,500,000	$ 4,500,000	$ 4,900,000