v3.25.2
Restricted Stock Awards - Restricted Stock Award Activity (Detail) - Restricted Stock Awards [Member]
9 Months Ended
Jun. 30, 2025
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Shares/ Units, Non-vested beginning balance 1,453,229
Shares/ Units, Awards granted 574,132
Shares/ Units, Awards vested (133,509)
Shares/ Units, Awards forfeited (45,509)
Shares/ Units, Non-vested ending balance 1,848,343
Weighted Average Grant Date Fair Value, Non-vested beginning balance | $ / shares $ 32.04
Weighted Average Grant Date Fair Value, Awards granted | $ / shares 30.12
Weighted Average Grant Date Fair Value, Awards vested | $ / shares 32.03
Weighted Average Grant Date Fair Value, Awards forfeited | $ / shares $ 34.18