XML 57 R46.htm IDEA: XBRL DOCUMENT v3.20.4

Acquired Intangibles and Goodwill - Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization (Detail) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2020	Dec. 26, 2020	Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 544.7		$ 398.3
Accumulated Amortization	(190.1)		(304.9)
Net Carrying Value	$ 354.6	$ 354.6	93.4
Weighted Average Life in Years	5 years 1 month 6 days
Display Driver Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 20.4		164.0
Accumulated Amortization	(16.0)		(158.2)
Net Carrying Value	$ 4.4		5.8
Weighted Average Life in Years	7 years
Audio and Video Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 138.6		138.6
Accumulated Amortization	(87.7)		(76.5)
Net Carrying Value	$ 50.9		62.1
Weighted Average Life in Years	5 years 4 months 24 days
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 125.5		81.8
Accumulated Amortization	(47.6)		(61.4)
Net Carrying Value	$ 77.9		20.4
Weighted Average Life in Years	4 years 2 months 12 days
Wireless and Connectivity Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 93.0
Accumulated Amortization	(6.5)
Net Carrying Value	$ 86.5
Weighted Average Life in Years	6 years
Video Interface Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 82.0
Accumulated Amortization	(11.4)
Net Carrying Value	$ 70.6
Weighted Average Life in Years	3 years
Licensed Technology and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 13.0		7.7
Accumulated Amortization	(6.8)		(5.5)
Net Carrying Value	$ 6.2		2.2
Weighted Average Life in Years	4 years 1 month 6 days
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 4.4		4.4
Accumulated Amortization	(2.9)		(2.6)
Net Carrying Value	$ 1.5		1.8
Weighted Average Life in Years	8 years
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 12.0
Accumulated Amortization	(10.0)
Net Carrying Value	$ 2.0
Weighted Average Life in Years	6 months
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 51.0
Net Carrying Value	51.0
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4.8		1.8
Accumulated Amortization	(1.2)		(0.7)
Net Carrying Value	$ 3.6		$ 1.1
Weighted Average Life in Years	5 years 1 month 6 days

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=syna_DisplayDriverTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=syna_AudioAndVideoTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=syna_WirelessAndConnectivityTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=syna_VideoInterfaceTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=syna_LicensedTechnologyAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=syna_BacklogMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_InProcessResearchAndDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: