CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance	$ 9,978	$ 14,791
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	44,664,798	44,325,772
Common stock, shares outstanding	41,162,200	40,823,174
Treasury stock, shares	3,502,598	3,502,598