Quarterly Financial Data (unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Quarterly Financial Data (unaudited)
Net revenue	$ 112,094	$ 97,312	$ 87,502	$ 86,506	$ 94,973	$ 105,284	$ 108,912	$ 89,631	$ 383,414	$ 398,800	$ 379,801
Gross profit	43,185	35,425	31,387	31,344	37,300	44,944	42,571	33,898	$ 141,341	$ 158,713	$ 145,402
Net income (loss)	$ (5,255)	$ (5,029)	$ (9,369)	$ (9,926)	$ (7,207)	$ 756	$ (6,027)	$ (13,026)
Net income (loss) per share - basic					$ (0.09)	$ 0.01	$ (0.08)	$ (0.16)
Net income (loss) per share - diluted					$ (0.09)	$ 0.01	$ (0.08)	$ (0.16)
Net loss per share - basic and diluted	$ (0.06)	$ (0.06)	$ (0.11)	$ (0.12)					$ (0.36)	$ (0.32)	$ (0.51)
Shares used in basic per share calculation					81,081	80,860	80,346	79,760
Shares used in diluted per share calculation					81,081	82,071	80,346	79,760
Shares used in basic and diluted per share calculation	83,179	82,913	82,328	81,576					82,495	80,509	78,277