XML 117 R105.htm IDEA: XBRL DOCUMENT v3.23.2
Assumptions Used in Estimating the Fair Value of Stock Award Grants (Detail) - $ / shares
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]      
Interest rates minimum 2.00% 0.03% 0.01%
Interest rates maximum 5.40% 3.60% 1.50%
Lower Limit      
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]      
Dividends per share (quarterly amounts) $ 0.62 $ 0.56 $ 0.51
Upper Limit      
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]      
Dividends per share (quarterly amounts) $ 0.68 $ 0.62 $ 0.56