Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2020	Jun. 30, 2020
Stockholders’ equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	48,634,709	49,124,313
Common stock, shares outstanding	46,851,048	47,340,652
Treasury stock, shares	1,783,661	1,783,661