XML 37 R26.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Compensation (Total Cost Of Stock-Based Compensation) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 31, 2018
May 31, 2017
May 31, 2018
May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost $ 446 $ 1,210 $ 2,182 $ 3,987
Performance Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost 227 1,041 1,601 3,509
Unvested Share Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost 175 131 467 369
Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost $ 44 $ 38 $ 114 94
Fully-Vested Share Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost       $ 15