XML 40 R28.htm IDEA: XBRL DOCUMENT v3.4.0.3
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
 3 Months Ended 9 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Accounting Policies [Abstract]        
Net income $ 29,011 $ 20,403 $ 91,150 $ 76,118
Net income available to participating securities (54) (26) (216) (109)
Net income available to common shareholders $ 28,957 $ 20,377 $ 90,934 $ 76,009
Weighted average common shares outstanding - basic (in shares) 27,338 27,303 27,329 27,294
Incremental share effect from:        
Nonparticipating restricted stock (in shares) 2 2 3 3
Stock-settled stock appreciation rights (in shares) 36 25 33 26
Weighted average common shares outstanding - diluted (in shares) 27,376 27,330 27,365 27,323
Net income per common share - basic (in dollars per share) $ 1.06 $ 0.75 $ 3.33 $ 2.78
Net income per common share - diluted (in dollars per share) $ 1.06 $ 0.75 $ 3.32 $ 2.78