Share-based Compensation (Details 3) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Employee Stock Purchase Plan
Company's common stock authorized for issuance under the ESPP (in shares)	8,100,000
Restricted stock
Stock-based Compensation
Annual forfeiture rate used to calculate compensation expense (as a percent)	7.50%	7.50%	7.50%
Awards
Nonvested at the beginning of the period (in shares)		74,000	155,000
Granted (in shares)	269,000	38,000	35,000
Vested (in shares)	(252,000)	(110,000)	(113,000)
Forfeited (in shares)	(1,000)	(2,000)	(3,000)
Nonvested at the end of the period (in shares)	16,000		74,000
Weighted Average Grant-date Fair Value
Nonvested at the beginning of the period (in dollars per share)		$ 6.94	$ 6.94
Granted (in dollars per share)	$ 24.07	$ 5.06	$ 3.62
Vested (in dollars per share)	$ 23.45	$ 6.30	$ 5.91
Forfeited (in dollars per share)	$ 24.48	$ 6.94	$ 6.94
Nonvested at the end of the period (in dollars per share)	$ 34.01		$ 6.94
Aggregate Intrinsic Value
Vested	$ 10,440	$ 491	$ 459
Employee Stock Purchase Plan
Employee Stock Purchase Plan
Purchase price lower of the fair market value of the common stock on the first day of the calendar quarter or the last day of the calendar quarter (as a percent)	85.00%
Percentage of the compensation authorized by the employee to be withheld	10.00%
Company's common stock authorized for issuance under the ESPP (in shares)	1,100,000
Shares issued under the ESPP (in shares)	18,000	70,000
Cumulative shares issued under the ESPP (in shares)	426,000