Stock-Based Compensation - Summary of Stock Option Plans (Detail) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Number of Shares
Outstanding at beginning of period	1,435,000	2,070,000
Granted	0	0	0
Exercised	(500,000)	(113,000)
Cancelled	(105,000)	(522,000)
Outstanding at end of period	830,000	1,435,000	2,070,000
Vested and expected to vest at end of period	830,000
Exercisable at end of period	816,000
Weighted Average Exercise Price (in dollars per share)
Outstanding at beginning of period	$ 11.76	$ 13.44
Granted	0.00	0.00
Exercised	7.43	6.23
Cancelled	19.21	19.59
Outstanding at end of period	13.43	$ 11.76	$ 13.44
Vested and expected to vest at end of period	13.43
Exercisable at end of period	$ 13.57
Weighted Average Remaining Contractual Term (Years)
Outstanding at end of period	1 year 7 months 28 days	2 years 2 months 23 days	2 years 7 months 6 days
Vested and expected to vest at end of period	1 year 7 months 28 days
Exercisable at end of period	1 year 7 months
Aggregate Intrinsic Value
Outstanding at end of period	$ 1,382
Vested and expected to vest at end of period	1,382
Exercisable at end of period	$ 1,249