Stock-Based Compensation - Schedule of Share-based Payment Award, Weighted Average Grant-Date Fair Values (Detail) - $ / shares	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted average grant-date fair values, Equity Incentive and Stock Option Plans	$ 5.29	$ 3.03	$ 2.31
Weighted average grant-date fair values, ESPP	$ 2.10	$ 3.56	$ 1.21

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration