Earnings Per Share (Tables)

6 Months Ended

Mar. 31, 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:

	Three-Months Ended March 31,				Six-Months Ended March 31,
	2021		2020		2021		2020
Numerator:
Net earnings	$	68,313	$	91,318	$	109,883	$	144,691
Denominator:
Basic shares outstanding		63,278		62,266		63,043		62,128
Dilutive effect of stock options and restricted stock		2,376		2,298		2,231		2,494
Diluted shares outstanding		65,654		64,564		65,274		64,622
Income per common share:
Basic earnings per share	$	1.08	$	1.47	$	1.74	$	2.33
Diluted earnings per share	$	1.04	$	1.41	$	1.68	$	2.24

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

The following stock option grants were outstanding but were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive.

	Three-Months Ended March 31,				Six-Months Ended March 31,
	2021		2020		2021		2020
Options		41		686		602		686
Weighted-average option price	$	117.39	$	104.51	$	104.85	$	104.47

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:

	Three-Months Ended March 31,				Six-Months Ended March 31,
	2021		2020		2021		2020
Weighted-average treasury stock shares held for deferred compensation obligations		196		216		197		214