Share-Based Compensation - Nonvested Restricted Shares (Details) - Restricted Stock - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares outstanding beginning period	1,724	2,737	162
Shares granted	1,325	225	2,808
Shares vested	(531)	(760)	(37)
Shares forfeited	(770)	(478)	(196)
Shares outstanding ending period	1,748	1,724	2,737
Vested shares	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value, beginning period	$ 2.46	$ 2.61	$ 0.00
Weighted average grant date fair value, granted	0.80	1.79	2.62
Weighted average grant date fair value, vested and issued	2.37	2.65	3.34
Weighted average grant date fair value, forfeited	2.22	2.55	3.25
Weighted average grant date fair value, ending period	1.34	2.46	2.61
Weighted average granted date fair value, vested shares	$ 0.00	$ 0.00	$ 0.00
Fair value of vested awards	$ 0.6	$ 1.2	$ 0.1