Earnings Per Share (Tables)

3 Months Ended

Dec. 31, 2011

Earnings Per Share

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

	Three-Months Ending
	December 31,
	2011		2010
Numerator:
Net earnings	$	28,416	$	22,399
Denominator:
Basic shares outstanding		68,919		68,811
Dilutive effect of stock options		1,474		1,370
Diluted shares outstanding		70,393		70,181
Income per common share:
Basic earnings per share	$	0.41	$	0.33
Diluted earnings per share	$	0.40	$	0.32

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

	Three-Months Ending
	December 31,
	2011		2010
Options		638		5
Weighted-average option price	$	32.11	$	29.08

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

	Three-Months Ending
	December 31,
	2011		2010
Weighted-average treasury stock shares held for deferred compensation obligations		315		356