Stock-Based Compensation - Summary of Stock Option Plans (Detail) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Number of Shares
Outstanding at beginning of period	830,000	1,435,000
Granted	0	0	0
Exercised	(524,000)	(500,000)
Cancelled	(48,000)	(105,000)
Outstanding at end of period	258,000	830,000	1,435,000
Vested and expected to vest at end of period	258,000
Exercisable at end of period	258,000
Weighted Average Exercise Price (in dollars per share)
Outstanding at beginning of period	$ 13.43	$ 11.76
Granted	0.00	0.00
Exercised	13.12	7.43
Cancelled	17.25	19.21
Outstanding at end of period	13.34	$ 13.43	$ 11.76
Vested and expected to vest at end of period	13.34
Exercisable at end of period	$ 13.34
Weighted Average Remaining Contractual Term (Years)
Outstanding at end of period	1 year 22 days	1 year 7 months 28 days	2 years 2 months 23 days
Vested and expected to vest at end of period	1 year 22 days
Exercisable at end of period	1 year 22 days
Aggregate Intrinsic Value
Outstanding at end of period	$ 2,972
Vested and expected to vest at end of period	2,972
Exercisable at end of period	$ 2,972