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Equity-Based Compensation (Schedule Of Stock Appreciation Rights Activity) (Details) - Stock Appreciation Rights (SARs)
$ / shares in Units, $ in Thousands
 12 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]  
SARs, Outstanding, Beginning of period | shares 858,503
SARs, Exercised | shares (152,698)
SARs, Expired | shares (1,736)
SARs, Forfeited | shares (2,559)
SARs, Outstanding, End of period | shares 701,510
SARs, Exercisable | shares 614,012
SARs, Weighted Average Exercise Price, Beginning of period | $ / shares $ 73.67
SARs, Weighted Average Exercise Price, Exercised | $ / shares 57.85
SARs, Weighted Average Exercise Price, Expired | $ / shares 85.95
SARs, Weighted Average Exercise Price, Forfeited | $ / shares 79.59
SARs, Weighted Average Exercise Price, End of period | $ / shares 77.06
SARs, Weighted Average Exercise Price, Exercisable | $ / shares $ 76.66
SARs, Weighted Average Remaining Contractual Terms, Outstanding 4 years 8 months 12 days
SARs, Weighted Average Remaining Contractual Terms, Exercisable 4 years 2 months 12 days
SARs, Aggregate Intrinsic Value, Outstanding | $ $ 25,045
SARs, Aggregate Intrinsic Value, Exercisable | $ $ 22,169