12. Net Earnings per Share

Our restricted stock awards are considered participating securities because they contain nonforfeitable rights to dividends and are included in the computation of earnings per share pursuant to the two-class method. Nonvested MSUs do not receive nonforfeitable dividend equivalent rights, and therefore, are not considered participating securities. RSUs are nonparticipating, non-equity instruments, and therefore, are excluded from net earnings per share calculations.

BASIC AND DILUTIVE NET EARNINGS PER SHARE RECONCILIATIONS




		Three Months Ended				Nine Months Ended
		November 30				November 30
(In thousands except per share data)		2011		2010		2011		2010
Net earnings	$	82,794	$	82,364	$	320,977	$	291,368
Less net earnings allocable to restricted stock		0		330		160		1,282
Net earnings available for basic common shares		82,794		82,034		320,817		290,086
Adjustment for dilutive potential common shares		0		9		0		0
Net earnings available for diluted common shares	$	82,794	$	82,043	$	320,817	$	290,086
Weighted average common shares outstanding		226,446		223,953		226,104		223,007
Dilutive potential common shares:
Stock options		3,337		3,867		3,622		3,346
Stock-settled restricted stock units		849		651		803		571
Weighted average common shares and dilutive
potential common shares		230,632		228,471		230,529		226,924
Basic net earnings per share	$	0.37	$	0.37	$	1.42	$	1.30
Diluted net earnings per share	$	0.36	$	0.36	$	1.39	$	1.28

For the quarters ended November 30, 2011 and 2010, weighted-average options to purchase 3,263,335 shares and 1,558,839 shares, respectively, of common stock were outstanding and not included in the calculations of diluted net earnings per share because their inclusion would be antidilutive. For the nine months ended November 30, 2011 and 2010, weighted-average options to purchase 3,026,729 shares and 3,234,902 shares, respectively, were outstanding and not included in the calculations.