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v3.23.3

Capital Stock (Details) - $ / shares | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Outstanding Shares [Roll Forward] |  |  |
Shares outstanding | 155,844,138 | 157,955,433 | 158,064,750
Exercised stock options | 110,989 | 36,731 | 151,399
Exercise of employee stock purchase plan | 181,483 | 150,909 | 146,135
Vesting of restricted stock units, net of shares withheld for taxes | 256,724 | 195,156 | 182,024
Shares outstanding | 155,871,932 | 155,844,138 | 157,955,433
Stock repurchased under buyback program | (714,830) | (2,654,254) | (651,271)
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period |  |  | 62,396
Preferred stock, shares authorized (in shares) | 60,000,000 | 60,000,000 |
Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
Preferred Stock, Shares Issued | 0 |  |
Performance Shares [Member] |  |  |
Outstanding Shares [Roll Forward] |  |  |
Settlement of performance-based restricted stock units, net of shares withheld for taxes | 2 | 240,412,000,000 | 103,058,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 193,428 | 160,163 |

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