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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Nov. 22, 2024	Sep. 30, 2024	Jul. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares Authorized	100,000,000		100,000,000			100,000,000
Treasury Stock Acquired, Average Cost Per Share	$ 172.80		$ 178.40
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			38,744	33,940
Share Repurchase Program, Authorized, Amount							$ 200,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant	1,291,991		1,291,991
Treasury Stock Acquired, Average Cost Per Share	$ 172.80		$ 178.40
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			38,744	33,940
Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 159	$ 134	$ 4,766	$ 230
us-gaap_PhantomShareUnitsPSUsMember_Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 2,980	$ 1,380	$ 4,766	$ 2,695
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period			78,120
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			1,555
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period			(94,752)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number	282,114		282,114			300,301
Stock Issued During Period, Shares, Treasury Stock Reissued			94,752	82,180
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			1,555
Share-Based Payment Arrangement, Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised, shares			1,000
Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized	3,750,000		3,750,000
Repurchase Agreements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury Stock, Shares, Acquired	118,314	0	139,362
Amended Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized					750,000