CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Balances (in shares) at Jun. 30, 2016   81,667,129      
Balances at Jun. 30, 2016 $ 440,376 $ 82 $ 0 $ 440,294  
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 257,506     257,506  
Other comprehensive income (loss) $ 0        
Stock options exercised (in shares) 502,350 502,350      
Stock options exercised $ 1,436   1,436    
Restricted stock units issued, net of tax withholdings (in shares)   88,897      
Restricted stock units issued, net of tax withholdings (1,594)   (1,594)    
Repurchase of Common Stock (in shares)   (1,982,411)      
Repurchase of Common Stock (98,745) $ (2) (2,102) (96,641)  
Stock-based compensation expense 2,785   2,785    
Balances (in shares) at Jun. 30, 2017   80,275,965      
Balances at Jun. 30, 2017 601,764 $ 80 525 601,159  
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 196,290     196,290  
Other comprehensive income (loss) $ 0        
Stock options exercised (in shares) 1,484,110 1,484,110      
Stock options exercised $ 1,539 $ 2 1,537    
Payroll taxes settled on Option Exercises (in shares)   (582,497)      
Payroll taxes settled on Option Exercises (40,624) $ (1)   (40,623)  
Restricted stock units issued, net of tax withholdings (in shares)   57,255      
Restricted stock units issued, net of tax withholdings (1,415)   (1,415)    
Repurchase of Common Stock (in shares)   (7,162,312)      
Repurchase of Common Stock (445,014) $ (7) (3,462) (441,545)  
Stock-based compensation expense 3,208   3,208    
Balances (in shares) at Jun. 30, 2018   74,072,521      
Balances at Jun. 30, 2018 315,748 $ 74 393 315,281  
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 322,694     322,694  
Other comprehensive income (loss) $ 393       $ 393
Stock options exercised (in shares) 92,644 92,644      
Stock options exercised $ 831   831    
Restricted stock units issued, net of tax withholdings (in shares)   41,256      
Restricted stock units issued, net of tax withholdings (1,473)   (1,473)    
Repurchase of Common Stock (in shares)   (4,733,853)      
Repurchase of Common Stock (470,448) $ (5) (2,641) (467,802)  
Stock-based compensation expense 2,890   2,890    
Dividends Paid on Common Stock ($1 per share) (71,358)     (71,358)  
Balances (in shares) at Jun. 30, 2019   69,472,568      
Balances at Jun. 30, 2019 $ 99,277 $ 69 $ 0 $ 98,815 $ 393