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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 10,269,000	$ 12,680,000
Effective tax rate	32.60%	27.30%
Gross unrecognized tax benefits	10,400,000		10,200,000
Gross unrecognized tax benefits increased during the year	223,000
Interest and penalties accrued related to unrecognized tax benefits	971,000
Increase in interest and penalties accrued related to unrecognized tax benefits	36,000
Minimum amount of tax refunds subject to mandatory review	$ 2,000,000

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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