The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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Number of options outstanding, including both vested and non-vested options.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-Publisher FASB

-Name Accounting Standards Codification

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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

-Publisher FASB

-Name Accounting Standards Codification

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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.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Stock Benefit Plans - Schedule of Share Based Compensation Options Outstanding and Exercisable By Price Range (Detail) - $ / shares	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares	5,878,441	7,512,592	10,039,450
Options Outstanding, Weighted Average Remaining Contractual Term	2 years 10 months 17 days	3 years 3 months 7 days	3 years 4 months 21 days
Options Outstanding, Weighted Average Exercise Price	$ 10.07	$ 10.32	$ 10.31
$3.91 - $5.94 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	3.91
Weighted Average Exercise Price, Upper	$ 5.94
Options Outstanding, Number of Shares	677,001
Options Outstanding, Weighted Average Remaining Contractual Term	5 years 11 months 16 days
Options Outstanding, Weighted Average Exercise Price	$ 5.06
Options Exercisable, Number of Shares	307,732
Options Exercisable, Weighted Average Exercise Price	$ 4.90
$5.96 - $9.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	5.96
Weighted Average Exercise Price, Upper	$ 9.00
Options Outstanding, Number of Shares	476,045
Options Outstanding, Weighted Average Remaining Contractual Term	3 years 4 months 2 days
Options Outstanding, Weighted Average Exercise Price	$ 7.50
Options Exercisable, Number of Shares	397,419
Options Exercisable, Weighted Average Exercise Price	$ 7.48
$9.01 - $9.01 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	9.01
Weighted Average Exercise Price, Upper	$ 9.01
Options Outstanding, Number of Shares	798,014
Options Outstanding, Weighted Average Remaining Contractual Term	11 months 27 days
Options Outstanding, Weighted Average Exercise Price	$ 9.01
Options Exercisable, Number of Shares	798,014
Options Exercisable, Weighted Average Exercise Price	$ 9.01
$9.23 - $9.55 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	9.23
Weighted Average Exercise Price, Upper	$ 9.55
Options Outstanding, Number of Shares	959,877
Options Outstanding, Weighted Average Remaining Contractual Term	4 years 3 months 22 days
Options Outstanding, Weighted Average Exercise Price	$ 9.47
Options Exercisable, Number of Shares	642,124
Options Exercisable, Weighted Average Exercise Price	$ 9.43
$9.64 - $9.91 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	9.64
Weighted Average Exercise Price, Upper	$ 9.91
Options Outstanding, Number of Shares	655,205
Options Outstanding, Weighted Average Remaining Contractual Term	3 years 6 months 29 days
Options Outstanding, Weighted Average Exercise Price	$ 9.68
Options Exercisable, Number of Shares	496,196
Options Exercisable, Weighted Average Exercise Price	$ 9.69
$10.28 - $10.28 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	10.28
Weighted Average Exercise Price, Upper	$ 10.28
Options Outstanding, Number of Shares	631,536
Options Outstanding, Weighted Average Remaining Contractual Term	29 days
Options Outstanding, Weighted Average Exercise Price	$ 10.28
Options Exercisable, Number of Shares	631,536
Options Exercisable, Weighted Average Exercise Price	$ 10.28
$10.34 - $11.67 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	10.34
Weighted Average Exercise Price, Upper	$ 11.67
Options Outstanding, Number of Shares	1,006,268
Options Outstanding, Weighted Average Remaining Contractual Term	2 years 6 months 15 days
Options Outstanding, Weighted Average Exercise Price	$ 11.32
Options Exercisable, Number of Shares	974,197
Options Exercisable, Weighted Average Exercise Price	$ 11.31
$12.43 - $15.60 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	12.43
Weighted Average Exercise Price, Upper	$ 15.60
Options Outstanding, Number of Shares	181,000
Options Outstanding, Weighted Average Remaining Contractual Term	3 years 10 months 2 days
Options Outstanding, Weighted Average Exercise Price	$ 14.19
Options Exercisable, Number of Shares	181,000
Options Exercisable, Weighted Average Exercise Price	$ 14.19
$16.89 - $16.89 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	16.89
Weighted Average Exercise Price, Upper	$ 16.89
Options Outstanding, Number of Shares	104,295
Options Outstanding, Weighted Average Remaining Contractual Term	1 year 8 months 27 days
Options Outstanding, Weighted Average Exercise Price	$ 16.89
Options Exercisable, Number of Shares	104,295
Options Exercisable, Weighted Average Exercise Price	$ 16.89
$19.00 - $19.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	19.00
Weighted Average Exercise Price, Upper	$ 19.00
Options Outstanding, Number of Shares	389,200
Options Outstanding, Weighted Average Remaining Contractual Term	1 year 4 months 10 days
Options Outstanding, Weighted Average Exercise Price	$ 19.00
Options Exercisable, Number of Shares	389,200
Options Exercisable, Weighted Average Exercise Price	$ 19.00
$3.91 - $19.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Lower	3.91
Weighted Average Exercise Price, Upper	$ 19.00
Options Outstanding, Number of Shares	5,878,441
Options Outstanding, Weighted Average Remaining Contractual Term	2 years 10 months 17 days
Options Outstanding, Weighted Average Exercise Price	$ 10.07
Options Exercisable, Number of Shares	4,921,713
Options Exercisable, Weighted Average Exercise Price	$ 10.52