Earnings per Share (Tables)

12 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

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”) during fiscal 2017, 2016 and 2015:

	Year Ended September 30,
	2017		2016		2015
	(In thousands, except per share data)
Numerator for basic and diluted earnings per share — net income	$	128,256	$	109,448	$	86,502
Denominator — share:
Basic weighted-average shares	30,862		31,129		31,402
Effect of dilutive securities	1,383		1,179		1,207
Diluted weighted-average shares	32,245		32,308		32,609
Earnings per share:
Basic	$	4.16	$	3.52	$	2.75
Diluted	$	3.98	$	3.39	$	2.65