Summary of Significant Accounting Policies - Basic and Diluted Weighted Average Shares Outstanding (Detail) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Accounting Policies [Abstract]
Basic weighted-average shares outstanding	34,241	32,114	31,000
Effect of dilutive equity instruments	856	825	0
Diluted weighted-average shares outstanding	35,097	32,939	31,000