Capitalization - Summary of Common Stock Share Activity (Details)	6 Months Ended
	Mar. 31, 2025 shares
Schedule of Capitalization, Equity [Line Items]
Share Repurchases (in shares)	(608,295)
Director Equity Compensation Plan and Director and Officer DCP Plan
Schedule of Capitalization, Equity [Line Items]
Common stock issued (in shares)	20,469
Stock-Based Compensation Awards
Schedule of Capitalization, Equity [Line Items]
Share Repurchases (in shares)	(64,067)	[1]
Stock and Benefit Plans
Schedule of Capitalization, Equity [Line Items]
Common stock issued (in shares)	166,473
Share Repurchase Plan
Schedule of Capitalization, Equity [Line Items]
Share Repurchases (in shares)	(774,768)
Restricted Stock Units
Schedule of Capitalization, Equity [Line Items]
Common stock issued (in shares)	120,228
Performance Shares
Schedule of Capitalization, Equity [Line Items]
Common stock issued (in shares)	89,843

[1] The Company considers all shares tendered as cancelled shares restored to the status of authorized but unissued shares, in accordance with New Jersey law.