Summary of Significant Accounting Policies - Basic and Diluted Weighted Average Shares Outstanding (Detail) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Accounting Policies [Abstract]
Basic weighted-average shares outstanding	32,114	31,000	30,128
Effect of dilutive equity instruments	825	0	0
Diluted weighted-average shares outstanding	32,939	31,000	30,128