Share-Based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Stock Plan Activity Since Inception [Abstract]
Increase in shares of common stock authorized for issuance under the Plan (in shares)	1,000,000
Shares of common stock authorized to be issued (in shares)	6,000,000
Shares available for grant (in shares)	497,633
Grant date fair value of options granted (in dollars per share)	$ 8.97
Share-Based Compensation, Changes In Options Outstanding [Roll Forward]
Outstanding as of beginning of period (in shares)	3,390,127,000	4,266,442,000	4,315,000,000
Granted (in shares)	1,013,270,000	7,960,000	60,000,000
Exercised (in shares)	(38,000,000)	(878,025,000)	(98,558,000)
Forfeited and expired (in shares)	0	(6,250,000)	(10,000,000)
Outstanding as of end of period (in shares)	4,365,397,000	3,390,127,000	4,266,442,000
Exercisable as of end of period (in shares)	3,537,189,000
Weighted Average Exercise Price [Abstract]
Outstanding as of beginning of period (in dollars per share)	$ 4.93	$ 5.18	$ 5.12
Granted (in dollars per share)	$ 18.58	$ 16.23	$ 11.40
Exercised (in dollars per share)	$ 5.12	$ 6.28	$ 6.25
Forfeited and expired (in dollars per share)	$ 0	$ 4.00	$ 4.00
Outstanding as of end of period (in dollars per share)	$ 8.10	$ 4.93	$ 5.18
Exercisable as of end of period (in dollars per share)	$ 5.67
Weighted Average Remaining Contractual Term [Abstract]
Outstanding as of end of period	2 years 7 months 24 days
Exercisable as of end of period	2 years 3 months 14 days
Aggregate Intrinsic Value [Abstract]
Outstanding as of end of period	$ 29,690
Exercisable as of end of period	29,673
Vested and Nonvested Options [Abstract]
Nonvested options outstanding (in shares)	828,208,000	54,251,000
Granted (in shares)	1,013,270,000
Vested (in shares)	(239,313,000)
Forfeited and expired (in shares)	0
Grant date fair value of non vested options granted (in dollars per share)	$ 8.97
Options vested during the period, weighted average grant-date fair value, as modified (in dollars per share)	$ 8.35
Forfeited and expired, weighted average grant-date fair value, as modified (in dollars per share)	$ 0
Weighted average grant-date fair value, as modified, at end of period (in dollars per share)	$ 8.93	$ 5.04
Restricted Stock Units [Abstract]
Risk-free interest rate, minimum (in hundredths)	30.00%		1.26%
Risk free interest rate (in hundredths)		0.72%
Risk-free interest rate, maximum (in hundredths)	0.64%		1.54%
Expected dividend yield (in hundredths)	0.00%	0.00%	0.00%
Expected volatility, minimum (in hundredths)	66.00%		69.10%
Expected volatility (in hundredths)		73.20%
Expected volatility, maximum (in hundredths)	70.00%		75.20%
Expected forfeiture rate (in hundredths)	0.00%	0.00%	0.00%
Expected term, minimum	3 years		2 years 6 months
Expected term		2 years 9 months 14 days
Expected term, maximum	4 years 4 months 24 days		3 years 5 months 5 days
June 30, 2013 [Member]
Share-Based Compensation Expense [Abstract]
Unrecognized compensation expense related to non-vested options	2,352
June 30, 2014 [Member]
Share-Based Compensation Expense [Abstract]
Unrecognized compensation expense related to non-vested options	2,238
June 30, 2015 [Member]
Share-Based Compensation Expense [Abstract]
Unrecognized compensation expense related to non-vested options	2,156
June 30, 2016 [Member]
Share-Based Compensation Expense [Abstract]
Unrecognized compensation expense related to non-vested options	240
June 30, 2017 [Member]
Share-Based Compensation Expense [Abstract]
Unrecognized compensation expense related to non-vested options	0
Grants Vest and Become Exercisable One Eight Increments [Member]
Stock Plan Activity Since Inception [Abstract]
Award vesting rights	Every quarter from the date of grant for two years.
Grants Vest and Become Exercisable One Sixteeth Increments [Member]
Stock Plan Activity Since Inception [Abstract]
Award vesting rights	Every quarter from the date of grant for four years.
Stock Options [Member]
Stock Plan Activity Since Inception [Abstract]
Contractual terms of option grants, minimum (in years)	5 years
Contractual terms of option grants, maximum (in years)	10 years
Grant date fair value of options granted (in dollars per share)	$ 8.97	$ 7.34	$ 4.46
Intrinsic value of options exercised	417	7,194	459
Vested and Nonvested Options [Abstract]
Grant date fair value of non vested options granted (in dollars per share)	$ 8.97	$ 7.34	$ 4.46
Share-Based Compensation Expense [Abstract]
Unrecognized compensation expense related to non-vested options	6,986
Restricted Stock Grants [Member]
Stock Plan Activity Since Inception [Abstract]
Awards granted (in shares)	452,142
Shares available for grant (in shares)	2,676
Non-qualified Stock Option [Member]
Stock Plan Activity Since Inception [Abstract]
Shares available for grant (in shares)	1,013,270
Incentive Stock Option [Member]
Stock Plan Activity Since Inception [Abstract]
Awards granted (in shares)	1,013,270
Vested in period (in shares)	5,784
Vested, fair value	1,998	8,397	10,323
Options, vested, exercisable (in shares)	5,784
Incentive Stock Option [Member] | Grants Vest and Become Exercisable One Eight Increments [Member]
Stock Plan Activity Since Inception [Abstract]
Awards granted (in shares)	27,600
Incentive Stock Option [Member] | Grants Vest and Become Exercisable June 2012 [Member]
Stock Plan Activity Since Inception [Abstract]
Awards granted (in shares)	5,784
Incentive Stock Option [Member] | Grants Vest and Become Exercisable December 2014 [Member]
Stock Plan Activity Since Inception [Abstract]
Awards granted (in shares)	61,136
Incentive Stock Option [Member] | Grants Vest and Become Exercisable One Sixteeth Increments [Member]
Stock Plan Activity Since Inception [Abstract]
Awards granted (in shares)	918,750
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Expense [Abstract]
Share-based compensation expense	1,089
Share-based compensation expense, net of tax	587
Restricted Stock Units [Abstract]
Vesting period of award	3 years
Restricted stock units outstanding (in shares)	487,367
Liability associated with restricted stock units	1,219
Selling, General and Administrative Expenses [Member]
Share-Based Compensation Expense [Abstract]
Share-based compensation expense	2,482	4,462	5,712
Share-based compensation expense, net of tax	$ 1,338	$ 2,407	$ 3,082