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Stock Compensation Plans: Stock Options by Exercise Price (Details) - Stock Options shares in Thousands | 6 Months Ended
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Mar. 31, 2025 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (shares) | shares | 265,980
Options Outstanding, Weighed Average Exercise Price (dollars per share) | $ 25.82
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 5 years 1 month 6 days
Options Exercisable, Number (shares) | shares | 194,750
Options Exercisable, Weighted Average Exercise Price (dollars per share) | $ 25.68
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 4 years 4 months 24 days
$10.26 - $10.71 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Weighted Average Exercise Price, minimum (dollars per share) | $ 10.26
Weighted Average Exercise Price, maximum (dollars per share) | $ 10.71
Options Outstanding, Number (shares) | shares | 8,750
Options Outstanding, Weighed Average Exercise Price (dollars per share) | $ 10.67
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 months 24 days
Options Exercisable, Number (shares) | shares | 8,750
Options Exercisable, Weighted Average Exercise Price (dollars per share) | $ 10.67
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 4 months 24 days
$15.67 - $19.13 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Weighted Average Exercise Price, minimum (dollars per share) | $ 15.67
Weighted Average Exercise Price, maximum (dollars per share) | $ 19.13
Options Outstanding, Number (shares) | shares | 48,950
Options Outstanding, Weighed Average Exercise Price (dollars per share) | $ 16.56
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 years 6 months
Options Exercisable, Number (shares) | shares | 38,720
Options Exercisable, Weighted Average Exercise Price (dollars per share) | $ 16.47
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 4 years 2 months 12 days
$26.50 - $27.25 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Weighted Average Exercise Price, minimum (dollars per share) | $ 26.5
Weighted Average Exercise Price, maximum (dollars per share) | $ 27.4
Options Outstanding, Number (shares) | shares | 86,160
Options Outstanding, Weighed Average Exercise Price (dollars per share) | $ 27.32
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 6 years 8 months 12 days
Options Exercisable, Number (shares) | shares | 49,560
Options Exercisable, Weighted Average Exercise Price (dollars per share) | $ 27.26
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 5 years 10 months 24 days
$28.23 - $29.69 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Weighted Average Exercise Price, minimum (dollars per share) | $ 28.23
Weighted Average Exercise Price, maximum (dollars per share) | $ 29.69
Options Outstanding, Number (shares) | shares | 91,800
Options Outstanding, Weighed Average Exercise Price (dollars per share) | $ 28.81
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 years 10 months 24 days
Options Exercisable, Number (shares) | shares | 68,000
Options Exercisable, Weighted Average Exercise Price (dollars per share) | $ 29.01
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 4 years 4 months 24 days
$31.80 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Weighted Average Exercise Price, minimum (dollars per share) | $ 31.8
Weighted Average Exercise Price, maximum (dollars per share) | $ 33.4
Options Outstanding, Number (shares) | shares | 30,320
Options Outstanding, Weighed Average Exercise Price (dollars per share) | $ 31.85
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 3 years 7 months 6 days
Options Exercisable, Number (shares) | shares | 29,720
Options Exercisable, Weighted Average Exercise Price (dollars per share) | $ 31.37
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 3 years 7 months 6 days

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