Schedule of Changes in Liability for Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Balance at Beginning of Year	$ 2,775	$ 3,181	$ 2,850
Increases in current year tax positions	2,450	298	338
Increases in prior year tax positions	203	2
Decreases in prior year tax positions			(7)
Expiration of statute of limitations	(1,406)	(706)
Balance at End of Year	$ 4,022	$ 2,775	$ 3,181

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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