Stock-Based Compensation - Performance Shares (Details) - Performance shares (PSUs)	12 Months Ended
	Sep. 30, 2024 $ / shares shares
Weighted Average Price
Nonvested, beginning period (in dollars per share) | $ / shares	$ 36.87
Granted (in dollars per share) | $ / shares	32.99
Vested (in dollars per share) | $ / shares	27.84
Forfeited (in dollars per share) | $ / shares	34.88
Nonvested, ending period (in dollars per share) | $ / shares	$ 38.39
Performance Shares/Units
Nonvested, beginning period (in shares) | shares	858,583
Granted (in shares) | shares	538,680
Vested (in shares) | shares	(304,418)
Forfeited (in shares) | shares	(285,216)
Nonvested, ending period (in shares) | shares	807,629