Earnings per Share (Tables)

6 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Schedule of Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share

The following table presents reconciliations for the numerators and denominators of basic and diluted earnings per share (“EPS”) for the quarters and six-month periods ended March 31, 2026 and 2025: 

	Quarter Ended March 31,				Six Months Ended March 31,
	2026		2025		2026		2025
	(In thousands, except per share data)
Numerator for diluted and basic earnings per share:
Net income	$	264,458	$	162,615	$	422,831	$	315,143
Denominator — share:
Basic weighted-average shares	23,628		24,389		23,676		24,383
Effect of dilutive securities	120		296		178		373
Diluted weighted-average shares	23,748		24,685		23,854		24,756
Earnings per share:
Basic	$	11.19	$	6.67	$	17.86	$	12.92
Diluted	$	11.14	$	6.59	$	17.73	$	12.73