v3.25.2
Summary Of Significant Accounting Policies (Schedule Of Basic And Diluted Net Income Per Common Share Calculations) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Accounting Policies [Abstract]      
Net income $ 167,347 $ 158,613 $ 111,286
Net income available to participating securities (455) (413) (257)
Net income available to common shareholders $ 166,892 $ 158,200 $ 111,029
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average common shares outstanding - basic (in shares) 27,469 27,440 27,462
Weighted average common shares outstanding - diluted (in shares) 27,489 27,461 27,482
Net income per common share - basic (in dollars per share) $ 6.08 $ 5.77 $ 4.04
Net income per common share - diluted (in dollars per share) $ 6.07 $ 5.76 $ 4.04
Nonparticipating Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Incremental share effect from awards with forfeitable dividends (in shares) 3 2 2
Stock Settled Stock Appreciation Rights SARS [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Incremental share effect from stock-settled stock appreciation rights (in shares) 1 6 15
Weighted average number of antidilutive securities (in rights outstanding)     100
Performance Units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Incremental share effect from awards with forfeitable dividends (in shares) 16 13 3