Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 8,403	$ 561
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	27,888,217	27,888,217
Treasury stock, shares	1,591,072	1,447,394