XML 149 R131.htm IDEA: XBRL DOCUMENT v3.21.2
SHARE-BASED AND OTHER COMPENSATION, Restricted Stock Award, Narrative (Details) - 2012 Stock Incentive Plan
12 Months Ended
Sep. 30, 2021
USD ($)
Restricted Stock and Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Excess tax benefits $ 19,000,000
Employees and Directors | Restricted Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Minimum percentage of annual bonus amounts in excess of specified amount that an employee can receive in stock awards, in lieu of cash 10.00%
Maximum percentage of annual bonus amounts in excess of specified amount that an employee can receive in stock awards, in lieu of cash 50.00%
Bonus amount that must be exceeded in order to receive awards in lieu of cash (greater than) $ 250,000
Award vesting period 1 year
Weighted-average period of recognition 3 years
Nonvested awards, compensation cost not yet recognized $ 187,000,000
Employees and Directors | Restricted Stock | Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Restricted period of awards 3 years
Employees and Directors | Restricted Stock | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Restricted period of awards 5 years