Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Reconciliation of Net Earnings to Net Earnings Per Share Basic and Diluted

The following is a reconciliation of net earnings to basic earnings per share and diluted earnings per share:

	Year Ended September 30,
	2021		2020		2019
Numerator:
Net earnings	$	208,649	$	240,395	$	259,602
Denominator:
Basic shares outstanding		63,287		62,267		61,950
Dilutive effect of stock options and restricted stock units		2,268		1,942		2,548
Diluted shares outstanding		65,555		64,209		64,498
Income per common share:
Basic earnings per share	$	3.30	$	3.86	$	4.19
Diluted earnings per share	$	3.18	$	3.74	$	4.02

Anti-dilutive Stock Options Excluded from Computation of Earnings Per Share

The following stock option grants were outstanding during the fiscal years ended September 30, 2021, 2020 and 2019, but were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive.

	Year Ended September 30,
	2021		2020		2019
Options		41		660		25
Weighted-average option price	$	116.38	$	104.45	$	96.54

Schedule of Treasury Stock Shares Held for Deferred Compensation Included in Basic and Diluted Shares Outstanding

The weighted-average shares of common stock outstanding for basic and diluted earnings per share included the weighted-average treasury stock shares held for deferred compensation obligations of the following:

	Year Ended September 30,
	2021		2020		2019
Weighted-average treasury stock shares held for deferred compensation obligations		186		211		208