Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Current assets:
Allowance for accounts receivable	$ 44,434	$ 39,032
Shareholders’ equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	3,000,000	3,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	45,000,000	45,000,000
Common stock, shares issued (in shares)	25,431,845	25,614,673
Common stock, shares outstanding (in shares)	25,431,845	25,614,673