Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2025

Accounting Policies [Abstract]

Earnings Per Share Basic And Diluted

The following table presents the calculation for both basic and diluted EPS:

(in thousands, except per share data)	Year ended September 30,
	2025		2024		2023
Net income	$	733,997	$	376,333	$	245,540
Weighted average shares outstanding		120,005		119,679		118,341
Dilutive effect of employee stock options, restricted shares and restricted stock units		772		1,063		993
Diluted weighted average shares outstanding		120,777		120,742		119,334
Earnings per share—Basic	$	6.12	$	3.14	$	2.07
Earnings per share—Diluted	$	6.08	$	3.12	$	2.06