Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 1,934	$ 1,896	$ 1,992
Maximum
Defined Benefit Plan Disclosure [Line Items]
Employee Contribution of eligible compensation	3.00%	3.00%	3.00%

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.

No definition available.

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