Acquired Intangibles - Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Dec. 31, 2014	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 341,135	$ 90,535
Accumulated amortization	(57,786)	(8,424)
Acquired intangibles, net	283,349us-gaap_FiniteLivedIntangibleAssetsNet	82,111us-gaap_FiniteLivedIntangibleAssetsNet
Display Driver Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	138,550
Useful Life	5 years
Fingerprint Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	75,650	18,650
Thin Touch Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	8,900	8,900
Useful Life	7 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	64,000	3,800
Licensed Technology and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	1,335	1,335
Useful Life	5 years
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	11,700	750
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	100	100
Useful Life	5 years
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	19,400	57,000
Supplier Arrangement [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 21,500
Minimum [Member] \| Fingerprint Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years
Minimum [Member] \| Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years
Maximum [Member] \| Fingerprint Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	4 years
Maximum [Member] \| Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years
Maximum [Member] \| Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	1 year
Maximum [Member] \| Supplier Arrangement [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	1 year

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

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

+ References

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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